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authorAnand V. Avati <avati@gluster.com>2009-03-25 18:08:43 +0530
committerAnand V. Avati <avati@amp.gluster.com>2009-03-26 17:09:08 +0530
commit36e39bf9cb4b7c712ef411d60203bf05af7e129f (patch)
tree562af406abb9647b1e1dcd43458abfb5f67e8ab5 /libglusterfsclient
parenta2d44f8cd32988ad52ad924b61a2ef5fc41e4b0e (diff)
Enhancements to distribute selfheal
- create missing directories instead of creating linkfiles when entry missing on hashed subvol - detect cases where there are dirs and linkfiles for a name and make them all dirs Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
Diffstat (limited to 'libglusterfsclient')
0 files changed, 0 insertions, 0 deletions
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-rw-r--r--xlators/nfs/server/src/nfs-common.c69
-rw-r--r--xlators/nfs/server/src/nfs-common.h20
-rw-r--r--xlators/nfs/server/src/nfs-fops.c248
-rw-r--r--xlators/nfs/server/src/nfs-fops.h28
-rw-r--r--xlators/nfs/server/src/nfs-generics.c33
-rw-r--r--xlators/nfs/server/src/nfs-generics.h27
-rw-r--r--xlators/nfs/server/src/nfs-inodes.c27
-rw-r--r--xlators/nfs/server/src/nfs-inodes.h17
-rw-r--r--xlators/nfs/server/src/nfs-mem-types.h21
-rw-r--r--xlators/nfs/server/src/nfs.c869
-rw-r--r--xlators/nfs/server/src/nfs.h36
-rw-r--r--xlators/nfs/server/src/nfs3-fh.c173
-rw-r--r--xlators/nfs/server/src/nfs3-fh.h51
-rw-r--r--xlators/nfs/server/src/nfs3-helpers.c175
-rw-r--r--xlators/nfs/server/src/nfs3-helpers.h26
-rw-r--r--xlators/nfs/server/src/nfs3.c587
-rw-r--r--xlators/nfs/server/src/nfs3.h94
-rw-r--r--xlators/nfs/server/src/nlm4.c454
-rw-r--r--xlators/nfs/server/src/nlm4.h24
-rw-r--r--xlators/nfs/server/src/nlmcbk_svc.c27
-rw-r--r--xlators/performance/Makefile.am2
-rw-r--r--xlators/performance/io-cache/src/Makefile.am8
-rw-r--r--xlators/performance/io-cache/src/io-cache.c219
-rw-r--r--xlators/performance/io-cache/src/io-cache.h2
-rw-r--r--xlators/performance/io-cache/src/page.c38
-rw-r--r--xlators/performance/io-threads/src/Makefile.am7
-rw-r--r--xlators/performance/io-threads/src/io-threads.c2020
-rw-r--r--xlators/performance/io-threads/src/io-threads.h13
-rw-r--r--xlators/performance/md-cache/src/Makefile.am8
-rw-r--r--xlators/performance/md-cache/src/md-cache.c498
-rw-r--r--xlators/performance/open-behind/Makefile.am1
-rw-r--r--xlators/performance/open-behind/src/Makefile.am15
-rw-r--r--xlators/performance/open-behind/src/open-behind-mem-types.h21
-rw-r--r--xlators/performance/open-behind/src/open-behind.c1020
-rw-r--r--xlators/performance/quick-read/src/Makefile.am7
-rw-r--r--xlators/performance/quick-read/src/quick-read-mem-types.h1
-rw-r--r--xlators/performance/quick-read/src/quick-read.c3728
-rw-r--r--xlators/performance/quick-read/src/quick-read.h57
-rw-r--r--xlators/performance/read-ahead/src/Makefile.am7
-rw-r--r--xlators/performance/read-ahead/src/page.c7
-rw-r--r--xlators/performance/read-ahead/src/read-ahead.c148
-rw-r--r--xlators/performance/readdir-ahead/Makefile.am (renamed from xlators/protocol/legacy/server/Makefile.am)2
-rw-r--r--xlators/performance/readdir-ahead/src/Makefile.am15
-rw-r--r--xlators/performance/readdir-ahead/src/readdir-ahead-mem-types.h24
-rw-r--r--xlators/performance/readdir-ahead/src/readdir-ahead.c560
-rw-r--r--xlators/performance/readdir-ahead/src/readdir-ahead.h46
-rw-r--r--xlators/performance/symlink-cache/src/Makefile.am7
-rw-r--r--xlators/performance/symlink-cache/src/symlink-cache.c3
-rw-r--r--xlators/performance/write-behind/src/Makefile.am7
-rw-r--r--xlators/performance/write-behind/src/write-behind-mem-types.h1
-rw-r--r--xlators/performance/write-behind/src/write-behind.c3747
-rw-r--r--xlators/playground/Makefile.am2
-rw-r--r--xlators/playground/template/Makefile.am2
-rw-r--r--xlators/playground/template/src/Makefile.am16
-rw-r--r--xlators/playground/template/src/template.c49
-rw-r--r--xlators/playground/template/src/template.h24
-rw-r--r--xlators/protocol/auth/addr/src/Makefile.am8
-rw-r--r--xlators/protocol/auth/addr/src/addr.c21
-rw-r--r--xlators/protocol/auth/login/src/Makefile.am7
-rw-r--r--xlators/protocol/auth/login/src/login.c20
-rw-r--r--xlators/protocol/client/src/Makefile.am13
-rw-r--r--xlators/protocol/client/src/client-callback.c6
-rw-r--r--xlators/protocol/client/src/client-handshake.c385
-rw-r--r--xlators/protocol/client/src/client-helpers.c77
-rw-r--r--xlators/protocol/client/src/client-lk.c360
-rw-r--r--xlators/protocol/client/src/client-rpc-fops.c (renamed from xlators/protocol/client/src/client3_1-fops.c)1581
-rw-r--r--xlators/protocol/client/src/client.c190
-rw-r--r--xlators/protocol/client/src/client.h67
-rw-r--r--xlators/protocol/legacy/Makefile.am3
-rw-r--r--xlators/protocol/legacy/client/src/Makefile.am21
-rw-r--r--xlators/protocol/legacy/client/src/client-mem-types.h43
-rw-r--r--xlators/protocol/legacy/client/src/client-protocol.c6683
-rw-r--r--xlators/protocol/legacy/client/src/client-protocol.h178
-rw-r--r--xlators/protocol/legacy/client/src/saved-frames.c196
-rw-r--r--xlators/protocol/legacy/client/src/saved-frames.h79
-rw-r--r--xlators/protocol/legacy/lib/src/Makefile.am14
-rw-r--r--xlators/protocol/legacy/lib/src/protocol.c108
-rw-r--r--xlators/protocol/legacy/lib/src/protocol.h1118
-rw-r--r--xlators/protocol/legacy/lib/src/transport.c422
-rw-r--r--xlators/protocol/legacy/lib/src/transport.h106
-rw-r--r--xlators/protocol/legacy/server/src/Makefile.am26
-rw-r--r--xlators/protocol/legacy/server/src/authenticate.c249
-rw-r--r--xlators/protocol/legacy/server/src/authenticate.h60
-rw-r--r--xlators/protocol/legacy/server/src/server-helpers.c622
-rw-r--r--xlators/protocol/legacy/server/src/server-helpers.h48
-rw-r--r--xlators/protocol/legacy/server/src/server-mem-types.h39
-rw-r--r--xlators/protocol/legacy/server/src/server-protocol.c6587
-rw-r--r--xlators/protocol/legacy/server/src/server-protocol.h191
-rw-r--r--xlators/protocol/legacy/server/src/server-resolve.c658
-rw-r--r--xlators/protocol/legacy/transport/Makefile.am3
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/Makefile.am1
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/Makefile.am19
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs-mem-types.h39
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.c2625
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.h220
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/name.c712
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/name.h47
-rw-r--r--xlators/protocol/legacy/transport/socket/Makefile.am1
-rw-r--r--xlators/protocol/legacy/transport/socket/src/Makefile.am19
-rw-r--r--xlators/protocol/legacy/transport/socket/src/name.c740
-rw-r--r--xlators/protocol/legacy/transport/socket/src/name.h44
-rw-r--r--xlators/protocol/legacy/transport/socket/src/socket-mem-types.h36
-rw-r--r--xlators/protocol/legacy/transport/socket/src/socket.c1625
-rw-r--r--xlators/protocol/legacy/transport/socket/src/socket.h129
-rw-r--r--xlators/protocol/server/src/Makefile.am19
-rw-r--r--xlators/protocol/server/src/authenticate.c91
-rw-r--r--xlators/protocol/server/src/authenticate.h19
-rw-r--r--xlators/protocol/server/src/server-handshake.c176
-rw-r--r--xlators/protocol/server/src/server-helpers.c1019
-rw-r--r--xlators/protocol/server/src/server-helpers.h61
-rw-r--r--xlators/protocol/server/src/server-mem-types.h19
-rw-r--r--xlators/protocol/server/src/server-resolve.c62
-rw-r--r--xlators/protocol/server/src/server-rpc-fops.c (renamed from xlators/protocol/server/src/server3_1-fops.c)3614
-rw-r--r--xlators/protocol/server/src/server.c686
-rw-r--r--xlators/protocol/server/src/server.h99
-rw-r--r--xlators/storage/Makefile.am6
-rw-r--r--xlators/storage/bd/Makefile.am3
-rw-r--r--xlators/storage/bd/src/Makefile.am20
-rw-r--r--xlators/storage/bd/src/bd-aio.c528
-rw-r--r--xlators/storage/bd/src/bd-aio.h41
-rw-r--r--xlators/storage/bd/src/bd-helper.c1021
-rw-r--r--xlators/storage/bd/src/bd-mem-types.h27
-rw-r--r--xlators/storage/bd/src/bd.c2449
-rw-r--r--xlators/storage/bd/src/bd.h177
-rw-r--r--xlators/storage/bdb/src/Makefile.am18
-rw-r--r--xlators/storage/bdb/src/bctx.c341
-rw-r--r--xlators/storage/bdb/src/bdb-ll.c1464
-rw-r--r--xlators/storage/bdb/src/bdb-mem-types.h42
-rw-r--r--xlators/storage/bdb/src/bdb.c3603
-rw-r--r--xlators/storage/bdb/src/bdb.h530
-rw-r--r--xlators/storage/posix/src/Makefile.am17
-rw-r--r--xlators/storage/posix/src/posix-aio.c569
-rw-r--r--xlators/storage/posix/src/posix-aio.h39
-rw-r--r--xlators/storage/posix/src/posix-handle.c317
-rw-r--r--xlators/storage/posix/src/posix-handle.h117
-rw-r--r--xlators/storage/posix/src/posix-helpers.c754
-rw-r--r--xlators/storage/posix/src/posix-mem-types.h21
-rw-r--r--xlators/storage/posix/src/posix.c2442
-rw-r--r--xlators/storage/posix/src/posix.h107
-rw-r--r--xlators/system/posix-acl/src/Makefile.am12
-rw-r--r--xlators/system/posix-acl/src/posix-acl-mem-types.h24
-rw-r--r--xlators/system/posix-acl/src/posix-acl-xattr.c32
-rw-r--r--xlators/system/posix-acl/src/posix-acl-xattr.h40
-rw-r--r--xlators/system/posix-acl/src/posix-acl.c156
-rw-r--r--xlators/system/posix-acl/src/posix-acl.h71
448 files changed, 97827 insertions, 86073 deletions
diff --git a/xlators/Makefile.am b/xlators/Makefile.am
index b1643d26c..f60fa85ce 100644
--- a/xlators/Makefile.am
+++ b/xlators/Makefile.am
@@ -1,3 +1,4 @@
-SUBDIRS = cluster storage protocol performance debug features encryption mount nfs mgmt system
+SUBDIRS = cluster storage protocol performance debug features encryption mount nfs mgmt system \
+ playground
CLEANFILES =
diff --git a/xlators/bindings/Makefile.am b/xlators/bindings/Makefile.am
deleted file mode 100644
index f77665802..000000000
--- a/xlators/bindings/Makefile.am
+++ /dev/null
@@ -1 +0,0 @@
-SUBDIRS = $(BINDINGS_SUBDIRS)
diff --git a/xlators/bindings/python/src/Makefile.am b/xlators/bindings/python/src/Makefile.am
deleted file mode 100644
index c0b9141c6..000000000
--- a/xlators/bindings/python/src/Makefile.am
+++ /dev/null
@@ -1,19 +0,0 @@
-
-xlator_PROGRAMS = python.so
-
-xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/bindings
-
-python_PYTHON = gluster.py glustertypes.py glusterstack.py
-
-pythondir = $(xlatordir)/python
-
-python_so_SOURCES = python.c
-
-AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall \
- -I$(top_srcdir)/libglusterfs/src -shared -nostartfiles \
- $(PYTHON_CPPLAGS) -DGLUSTER_PYTHON_PATH=\"$(pythondir)\"
-
-AM_LDFLAGS = $(PYTHON_LDFLAGS)
-
-CLEANFILES =
-
diff --git a/xlators/bindings/python/src/gluster.py b/xlators/bindings/python/src/gluster.py
deleted file mode 100644
index ee0eb1310..000000000
--- a/xlators/bindings/python/src/gluster.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# Copyright (c) 2007 Chris AtLee <chris@atlee.ca>
-# This file is part of GlusterFS.
-#
-# GlusterFS is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published
-# by the Free Software Foundation; either version 3 of the License,
-# or (at your option) any later version.
-#
-# GlusterFS is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see
-# <http://www.gnu.org/licenses/>.
-from ctypes import *
-from glustertypes import *
-from glusterstack import *
-import sys
-import inspect
-
-libglusterfs = CDLL("libglusterfs.so")
-_gf_log = libglusterfs._gf_log
-_gf_log.restype = c_int32
-_gf_log.argtypes = [c_char_p, c_char_p, c_char_p, c_int32, c_int, c_char_p]
-
-gf_log_loglevel = c_int.in_dll(libglusterfs, "gf_log_loglevel")
-
-GF_LOG_NONE = 0
-GF_LOG_CRITICAL = 1
-GF_LOG_ERROR = 2
-GF_LOG_WARNING = 3
-GF_LOG_DEBUG = 4
-
-def gf_log(module, level, fmt, *params):
- if level <= gf_log_loglevel:
- frame = sys._getframe(1)
- _gf_log(module, frame.f_code.co_filename, frame.f_code.co_name,
- frame.f_lineno, level, fmt, *params)
-
-class ComplexTranslator(object):
- def __init__(self, xlator):
- self.xlator = xlator_t.from_address(xlator)
-
- def __getattr__(self, item):
- return getattr(self.xlator, item)
diff --git a/xlators/bindings/python/src/glusterstack.py b/xlators/bindings/python/src/glusterstack.py
deleted file mode 100644
index ba24c8165..000000000
--- a/xlators/bindings/python/src/glusterstack.py
+++ /dev/null
@@ -1,55 +0,0 @@
-# Copyright (c) 2007 Chris AtLee <chris@atlee.ca>
-# This file is part of GlusterFS.
-#
-# GlusterFS is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published
-# by the Free Software Foundation; either version 3 of the License,
-# or (at your option) any later version.
-#
-# GlusterFS is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see
-# <http://www.gnu.org/licenses/>.
-from ctypes import *
-from glustertypes import *
-
-libc = CDLL("libc.so.6")
-calloc = libc.calloc
-calloc.argtypes = [c_int, c_int]
-calloc.restype = c_void_p
-
-# TODO: Can these be done in C somehow?
-def stack_wind(frame, rfn, obj, fn, *params):
- """Frame is a frame object"""
- _new = cast(calloc(1, sizeof(call_frame_t)), POINTER(call_frame_t))
- _new[0].root = frame.root
- _new[0].next = frame.root[0].frames.next
- _new[0].prev = pointer(frame.root[0].frames)
- if frame.root[0].frames.next:
- frame.root[0].frames.next[0].prev = _new
- frame.root[0].frames.next = _new
- _new[0].this = obj
- # TODO: Type checking like tmp_cbk?
- _new[0].ret = rfn
- _new[0].parent = pointer(frame)
- _new[0].cookie = cast(_new, c_void_p)
- # TODO: Initialize lock
- #_new.lock.init()
- frame.ref_count += 1
- fn(_new, obj, *params)
-
-def stack_unwind(frame, *params):
- """Frame is a frame object"""
- fn = frame[0].ret
- parent = frame[0].parent[0]
- parent.ref_count -= 1
-
- op_ret = params[0]
- op_err = params[1]
- params = params[2:]
- fn(parent, call_frame_t.from_address(frame[0].cookie), parent.this,
- op_ret, op_err, *params)
diff --git a/xlators/bindings/python/src/glustertypes.py b/xlators/bindings/python/src/glustertypes.py
deleted file mode 100644
index e9069d07c..000000000
--- a/xlators/bindings/python/src/glustertypes.py
+++ /dev/null
@@ -1,167 +0,0 @@
-# Copyright (c) 2007 Chris AtLee <chris@atlee.ca>
-# This file is part of GlusterFS.
-#
-# GlusterFS is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published
-# by the Free Software Foundation; either version 3 of the License,
-# or (at your option) any later version.
-#
-# GlusterFS is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see
-# <http://www.gnu.org/licenses/>.
-from ctypes import *
-import collections
-
-#
-# Forward declaration of some gluster types
-#
-class call_frame_t(Structure):
- pass
-
-class call_ctx_t(Structure):
- pass
-
-class call_pool_t(Structure):
- pass
-
-class xlator_t(Structure):
- def _getFirstChild(self):
- return self.children[0].xlator
- firstChild = property(_getFirstChild)
-
-class xlator_list_t(Structure):
- pass
-
-class xlator_fops(Structure):
- pass
-
-class xlator_mops(Structure):
- pass
-
-class glusterfs_ctx_t(Structure):
- pass
-
-class list_head(Structure):
- pass
-
-class dict_t(Structure):
- pass
-
-class inode_table_t(Structure):
- pass
-
-class fd_t(Structure):
- pass
-
-class iovec(Structure):
- _fields_ = [
- ("iov_base", c_void_p),
- ("iov_len", c_size_t),
- ]
-
- def __init__(self, s):
- self.iov_base = cast(c_char_p(s), c_void_p)
- self.iov_len = len(s)
-
- def getBytes(self):
- return string_at(self.iov_base, self.iov_len)
-
-# This is a pthread_spinlock_t
-# TODO: what happens to volatile-ness?
-gf_lock_t = c_int
-
-uid_t = c_uint32
-gid_t = c_uint32
-pid_t = c_int32
-
-off_t = c_int64
-
-#
-# Function pointer types
-#
-ret_fn_t = CFUNCTYPE(c_int32, POINTER(call_frame_t), POINTER(call_frame_t),
- POINTER(xlator_t), c_int32, c_int32)
-
-fini_fn_t = CFUNCTYPE(None, POINTER(xlator_t))
-init_fn_t = CFUNCTYPE(c_int32, POINTER(xlator_t))
-event_notify_fn_t = CFUNCTYPE(c_int32, POINTER(xlator_t), c_int32, c_void_p)
-
-list_head._fields_ = [
- ("next", POINTER(list_head)),
- ("prev", POINTER(list_head)),
- ]
-
-call_frame_t._fields_ = [
- ("root", POINTER(call_ctx_t)),
- ("parent", POINTER(call_frame_t)),
- ("next", POINTER(call_frame_t)),
- ("prev", POINTER(call_frame_t)),
- ("local", c_void_p),
- ("this", POINTER(xlator_t)),
- ("ret", ret_fn_t),
- ("ref_count", c_int32),
- ("lock", gf_lock_t),
- ("cookie", c_void_p),
- ("op", c_int32),
- ("type", c_int8),
- ]
-
-call_ctx_t._fields_ = [
- ("all_frames", list_head),
- ("trans", c_void_p),
- ("pool", call_pool_t),
- ("unique", c_uint64),
- ("state", c_void_p),
- ("uid", uid_t),
- ("gid", gid_t),
- ("pid", pid_t),
- ("frames", call_frame_t),
- ("req_refs", POINTER(dict_t)),
- ("rsp_refs", POINTER(dict_t)),
- ]
-
-xlator_t._fields_ = [
- ("name", c_char_p),
- ("type", c_char_p),
- ("next", POINTER(xlator_t)),
- ("prev", POINTER(xlator_t)),
- ("parent", POINTER(xlator_t)),
- ("children", POINTER(xlator_list_t)),
- ("fops", POINTER(xlator_fops)),
- ("mops", POINTER(xlator_mops)),
- ("fini", fini_fn_t),
- ("init", init_fn_t),
- ("notify", event_notify_fn_t),
- ("options", POINTER(dict_t)),
- ("ctx", POINTER(glusterfs_ctx_t)),
- ("itable", POINTER(inode_table_t)),
- ("ready", c_char),
- ("private", c_void_p),
- ]
-
-xlator_list_t._fields_ = [
- ("xlator", POINTER(xlator_t)),
- ("next", POINTER(xlator_list_t)),
- ]
-
-fop_functions = collections.defaultdict(lambda: c_void_p)
-fop_function_names = ['lookup', 'forget', 'stat', 'fstat', 'chmod', 'fchmod',
- 'chown', 'fchown', 'truncate', 'ftruncate', 'utimens', 'access',
- 'readlink', 'mknod', 'mkdir', 'unlink', 'rmdir', 'symlink',
- 'rename', 'link', 'create', 'open', 'readv', 'writev', 'flush',
- 'close', 'fsync', 'opendir', 'readdir', 'closedir', 'fsyncdir',
- 'statfs', 'setxattr', 'getxattr', 'removexattr', 'lk', 'writedir',
- # TODO: Call backs?
- ]
-
-fop_writev_t = CFUNCTYPE(c_int32, POINTER(call_frame_t), POINTER(xlator_t),
- POINTER(fd_t), POINTER(iovec), c_int32,
- off_t)
-
-fop_functions['writev'] = fop_writev_t
-xlator_fops._fields_ = [(f, fop_functions[f]) for f in fop_function_names]
diff --git a/xlators/bindings/python/src/python.c b/xlators/bindings/python/src/python.c
deleted file mode 100644
index 3310a2115..000000000
--- a/xlators/bindings/python/src/python.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- Copyright (c) 2007-2010 Chris AtLee <chris@atlee.ca>
- This file is part of GlusterFS.
-
- GlusterFS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3 of the License,
- or (at your option) any later version.
-
- GlusterFS is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
-*/
-
-#include <Python.h>
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-#include "glusterfs.h"
-#include "xlator.h"
-#include "logging.h"
-#include "defaults.h"
-
-typedef struct
-{
- char *scriptname;
- PyObject *pXlator;
- PyObject *pScriptModule;
- PyObject *pGlusterModule;
- PyThreadState *pInterp;
-
- PyObject *pFrameType, *pVectorType, *pFdType;
-} python_private_t;
-
-int32_t
-python_writev (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- struct iovec *vector,
- int32_t count,
- off_t offset)
-{
- python_private_t *priv = (python_private_t *)this->private;
- gf_log("python", GF_LOG_DEBUG, "In writev");
- if (PyObject_HasAttrString(priv->pXlator, "writev"))
- {
-
- PyObject *retval = PyObject_CallMethod(priv->pXlator, "writev",
- "O O O i l",
- PyObject_CallMethod(priv->pFrameType, "from_address", "O&", PyLong_FromVoidPtr, frame),
- PyObject_CallMethod(priv->pFdType, "from_address", "O&", PyLong_FromVoidPtr, fd),
- PyObject_CallMethod(priv->pVectorType, "from_address", "O&", PyLong_FromVoidPtr, vector),
- count,
- offset);
- if (PyErr_Occurred())
- {
- PyErr_Print();
- }
- Py_XDECREF(retval);
- }
- else
- {
- return default_writev(frame, this, fd, vector, count, offset);
- }
- return 0;
-}
-
-struct xlator_fops fops = {
- .writev = python_writev
-};
-
-static PyObject *
-AnonModule_FromFile (const char* fname)
-{
- // Get the builtins
- PyThreadState* pThread = PyThreadState_Get();
- PyObject *pBuiltins = pThread->interp->builtins;
-
- if (PyErr_Occurred())
- {
- PyErr_Print();
- return NULL;
- }
-
- // Create a new dictionary for running code in
- PyObject *pModuleDict = PyDict_New();
- PyDict_SetItemString(pModuleDict, "__builtins__", pBuiltins);
- Py_INCREF(pBuiltins);
-
- // Run the file in the new context
- FILE* fp = fopen(fname, "r");
- PyRun_File(fp, fname, Py_file_input, pModuleDict, pModuleDict);
- fclose(fp);
- if (PyErr_Occurred())
- {
- PyErr_Print();
- Py_DECREF(pModuleDict);
- Py_DECREF(pBuiltins);
- return NULL;
- }
-
- // Create an object to hold the new context
- PyRun_String("class ModuleWrapper(object):\n\tpass\n", Py_single_input, pModuleDict, pModuleDict);
- if (PyErr_Occurred())
- {
- PyErr_Print();
- Py_DECREF(pModuleDict);
- Py_DECREF(pBuiltins);
- return NULL;
- }
- PyObject *pModule = PyRun_String("ModuleWrapper()", Py_eval_input, pModuleDict, pModuleDict);
- if (PyErr_Occurred())
- {
- PyErr_Print();
- Py_DECREF(pModuleDict);
- Py_DECREF(pBuiltins);
- Py_XDECREF(pModule);
- return NULL;
- }
-
- // Set the new context's dictionary to the one we used to run the code
- // inside
- PyObject_SetAttrString(pModule, "__dict__", pModuleDict);
- if (PyErr_Occurred())
- {
- PyErr_Print();
- Py_DECREF(pModuleDict);
- Py_DECREF(pBuiltins);
- Py_DECREF(pModule);
- return NULL;
- }
-
- return pModule;
-}
-
-int32_t
-init (xlator_t *this)
-{
- // This is ok to call more than once per process
- Py_InitializeEx(0);
-
- if (!this->children) {
- gf_log ("python", GF_LOG_ERROR,
- "FATAL: python should have exactly one child");
- return -1;
- }
-
- python_private_t *priv = CALLOC (sizeof (python_private_t), 1);
- ERR_ABORT (priv);
-
- data_t *scriptname = dict_get (this->options, "scriptname");
- if (scriptname) {
- priv->scriptname = data_to_str(scriptname);
- } else {
- gf_log("python", GF_LOG_ERROR,
- "FATAL: python requires the scriptname parameter");
- return -1;
- }
-
- priv->pInterp = Py_NewInterpreter();
-
- // Adjust python's path
- PyObject *syspath = PySys_GetObject("path");
- PyObject *path = PyString_FromString(GLUSTER_PYTHON_PATH);
- PyList_Append(syspath, path);
- Py_DECREF(path);
-
- gf_log("python", GF_LOG_DEBUG,
- "Loading gluster module");
-
- priv->pGlusterModule = PyImport_ImportModule("gluster");
- if (PyErr_Occurred())
- {
- PyErr_Print();
- return -1;
- }
-
- priv->pFrameType = PyObject_GetAttrString(priv->pGlusterModule, "call_frame_t");
- priv->pFdType = PyObject_GetAttrString(priv->pGlusterModule, "fd_t");
- priv->pVectorType = PyObject_GetAttrString(priv->pGlusterModule, "iovec");
-
- gf_log("python", GF_LOG_DEBUG, "Loading script...%s", priv->scriptname);
-
- priv->pScriptModule = AnonModule_FromFile(priv->scriptname);
- if (!priv->pScriptModule || PyErr_Occurred())
- {
- gf_log("python", GF_LOG_ERROR, "Error loading %s", priv->scriptname);
- PyErr_Print();
- return -1;
- }
-
- if (!PyObject_HasAttrString(priv->pScriptModule, "xlator"))
- {
- gf_log("python", GF_LOG_ERROR, "%s does not have a xlator attribute", priv->scriptname);
- return -1;
- }
- gf_log("python", GF_LOG_DEBUG, "Instantiating translator");
- priv->pXlator = PyObject_CallMethod(priv->pScriptModule, "xlator", "O&",
- PyLong_FromVoidPtr, this);
- if (PyErr_Occurred() || !priv->pXlator)
- {
- PyErr_Print();
- return -1;
- }
-
- this->private = priv;
-
- gf_log ("python", GF_LOG_DEBUG, "python xlator loaded");
- return 0;
-}
-
-void
-fini (xlator_t *this)
-{
- python_private_t *priv = (python_private_t*)(this->private);
- Py_DECREF(priv->pXlator);
- Py_DECREF(priv->pScriptModule);
- Py_DECREF(priv->pGlusterModule);
- Py_DECREF(priv->pFrameType);
- Py_DECREF(priv->pFdType);
- Py_DECREF(priv->pVectorType);
- Py_EndInterpreter(priv->pInterp);
- return;
-}
diff --git a/xlators/bindings/python/src/testxlator.py b/xlators/bindings/python/src/testxlator.py
deleted file mode 100644
index 507455c85..000000000
--- a/xlators/bindings/python/src/testxlator.py
+++ /dev/null
@@ -1,56 +0,0 @@
-# Copyright (c) 2007 Chris AtLee <chris@atlee.ca>
-# This file is part of GlusterFS.
-#
-# GlusterFS is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published
-# by the Free Software Foundation; either version 3 of the License,
-# or (at your option) any later version.
-#
-# GlusterFS is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see
-# <http://www.gnu.org/licenses/>.
-
-"""
-This is a test translator written in python.
-
-Important things to note:
- This file must be import-able from glusterfsd. This probably means
- setting PYTHONPATH to where this file is located.
-
- This file must have a top-level xlator class object that will be
- used to instantiate individual translators.
-"""
-from gluster import *
-
-class MyXlator(ComplexTranslator):
- name = "MyXlator"
- def writev_cbk(self, frame, cookie, op_ret, op_errno, buf):
- stack_unwind(frame, op_ret, op_errno, buf)
- return 0
-
- def writev(self, frame, fd, vector, count, offset):
- gf_log(self.name, GF_LOG_WARNING, "writev %i bytes", vector.iov_len)
- # TODO: Use cookie to pass this to writev_cbk
- old_count = vector.iov_len
-
- data = vector.getBytes().encode("zlib")
-
- vector = iovec(data)
- gf_log(self.name, GF_LOG_WARNING, "writev %i bytes", vector.iov_len)
-
- @ret_fn_t
- def rfn(frame, prev, this, op_ret, op_errno, *params):
- if len(params) == 0:
- params = [0]
- return self.writev_cbk(frame, prev, old_count, op_errno, *params)
-
- stack_wind(frame, rfn, self.firstChild,
- self.firstChild[0].fops[0].writev, fd, vector, count, offset)
- return 0
-
-xlator = MyXlator
diff --git a/xlators/cluster/afr/src/Makefile.am b/xlators/cluster/afr/src/Makefile.am
index 95db5dd96..ea5a90abb 100644
--- a/xlators/cluster/afr/src/Makefile.am
+++ b/xlators/cluster/afr/src/Makefile.am
@@ -2,34 +2,37 @@ xlator_LTLIBRARIES = afr.la pump.la
xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/cluster
afr_common_source = afr-dir-read.c afr-dir-write.c afr-inode-read.c \
- afr-inode-write.c afr-open.c afr-transaction.c afr-self-heal-data.c \
- afr-self-heal-common.c afr-self-heal-metadata.c afr-self-heal-entry.c \
- afr-self-heal-algorithm.c afr-lk-common.c afr-self-heald.c \
+ afr-inode-write.c afr-open.c afr-transaction.c afr-lk-common.c \
+ afr-read-txn.c \
$(top_builddir)/xlators/lib/src/libxlator.c
-afr_la_LDFLAGS = -module -avoidversion
-afr_la_SOURCES = $(afr_common_source) afr.c
+AFR_SELFHEAL_SOURCES = afr-self-heal-common.c afr-self-heal-data.c \
+ afr-self-heal-entry.c afr-self-heal-metadata.c afr-self-heald.c \
+ afr-self-heal-name.c
+
+afr_la_LDFLAGS = -module -avoid-version
+afr_la_SOURCES = $(afr_common_source) $(AFR_SELFHEAL_SOURCES) afr.c
afr_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
-pump_la_LDFLAGS = -module -avoidversion
-pump_la_SOURCES = $(afr_common_source) pump.c
+pump_la_LDFLAGS = -module -avoid-version
+pump_la_SOURCES = $(afr_common_source) $(AFR_SELFHEAL_SOURCES) pump.c
pump_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
noinst_HEADERS = afr.h afr-transaction.h afr-inode-write.h afr-inode-read.h \
- afr-dir-read.h afr-dir-write.h afr-self-heal.h afr-self-heal-common.h \
- afr-self-heal-algorithm.h pump.h afr-mem-types.h afr-common.c \
- afr-self-heald.h $(top_builddir)/xlators/lib/src/libxlator.h \
- $(top_builddir)/glusterfsd/src/glusterfsd.h
+ afr-dir-read.h afr-dir-write.h afr-self-heal.h afr-mem-types.h \
+ afr-common.c afr-self-heald.h pump.h \
+ $(top_builddir)/xlators/lib/src/libxlator.h
-AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS) \
+AM_CPPFLAGS = $(GF_CPPFLAGS) \
-I$(top_srcdir)/libglusterfs/src -I$(top_srcdir)/xlators/lib/src \
- -I$(top_srcdir)/rpc/rpc-lib/src -shared -nostartfiles $(GF_CFLAGS)
+ -I$(top_srcdir)/rpc/rpc-lib/src
+
+AM_CFLAGS = -Wall $(GF_CFLAGS)
CLEANFILES =
uninstall-local:
rm -f $(DESTDIR)$(xlatordir)/replicate.so
- rm -f $(DESTDIR)$(xlatordir)/pump.so
install-data-hook:
ln -sf afr.so $(DESTDIR)$(xlatordir)/replicate.so
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c
index 7973dfdde..6bd231600 100644
--- a/xlators/cluster/afr/src/afr-common.c
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -45,775 +45,821 @@
#include "afr-dir-write.h"
#include "afr-transaction.h"
#include "afr-self-heal.h"
-#include "afr-self-heal-common.h"
#include "afr-self-heald.h"
-#include "pump.h"
-#define AFR_ICTX_OPENDIR_DONE_MASK 0x0000000200000000ULL
-#define AFR_ICTX_SPLIT_BRAIN_MASK 0x0000000100000000ULL
-#define AFR_ICTX_READ_CHILD_MASK 0x00000000FFFFFFFFULL
-int
-afr_lookup_done_success_action (call_frame_t *frame, xlator_t *this,
- gf_boolean_t fail_conflict);
-void
-afr_children_copy (int32_t *dst, int32_t *src, unsigned int child_count)
+call_frame_t *
+afr_copy_frame (call_frame_t *base)
{
- int i = 0;
+ afr_local_t *local = NULL;
+ call_frame_t *frame = NULL;
+ int op_errno = 0;
+
+ frame = copy_frame (base);
+ if (!frame)
+ return NULL;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local) {
+ AFR_STACK_DESTROY (frame);
+ return NULL;
+ }
- for (i = 0; i < child_count; i++)
- dst[i] = src[i];
+ return frame;
}
-void
-afr_xattr_req_prepare (xlator_t *this, dict_t *xattr_req, const char *path)
+/*
+ * INODE CTX 64-bit VALUE FORMAT FOR SMALL (<= 16) SUBVOL COUNTS:
+ *
+ * |<---------- 64bit ------------>|
+ * 63 32 31 16 15 0
+ * | EVENT_GEN | DATA | METADATA |
+ *
+ *
+ * METADATA (bit-0 .. bit-15): bitmap representing subvolumes from which
+ * metadata can be attempted to be read.
+ *
+ * bit-0 => priv->subvolumes[0]
+ * bit-1 => priv->subvolumes[1]
+ * ... etc. till bit-15
+ *
+ * DATA (bit-16 .. bit-31): bitmap representing subvolumes from which data
+ * can be attempted to be read.
+ *
+ * bit-16 => priv->subvolumes[0]
+ * bit-17 => priv->subvolumes[1]
+ * ... etc. till bit-31
+ *
+ * EVENT_GEN (bit-32 .. bit-63): event generation (i.e priv->event_generation)
+ * when DATA and METADATA was last updated.
+ *
+ * If EVENT_GEN is < priv->event_generation,
+ * or is 0, it means afr_inode_refresh() needs
+ * to be called to recalculate the bitmaps.
+ */
+
+int
+__afr_inode_read_subvol_get_small (inode_t *inode, xlator_t *this,
+ unsigned char *data, unsigned char *metadata,
+ int *event_p)
{
- int i = 0;
- afr_private_t *priv = NULL;
- int ret = 0;
+ afr_private_t *priv = NULL;
+ int ret = -1;
+ uint16_t datamap = 0;
+ uint16_t metadatamap = 0;
+ uint32_t event = 0;
+ uint64_t val = 0;
+ int i = 0;
- priv = this->private;
+ priv = this->private;
- for (i = 0; i < priv->child_count; i++) {
- ret = dict_set_uint64 (xattr_req, priv->pending_key[i],
- 3 * sizeof(int32_t));
- if (ret < 0)
- gf_log (this->name, GF_LOG_WARNING,
- "%s: Unable to set dict value for %s",
- path, priv->pending_key[i]);
- /* 3 = data+metadata+entry */
- }
- ret = dict_set_int32 (xattr_req, GF_GFIDLESS_LOOKUP, 1);
- if (ret) {
- gf_log (this->name, GF_LOG_DEBUG, "%s: failed to set gfidless "
- "lookup", path);
- }
+ ret = __inode_ctx_get (inode, this, &val);
+ if (ret < 0)
+ return ret;
+
+ metadatamap = (val & 0x000000000000ffff);
+ datamap = (val & 0x00000000ffff0000) >> 16;
+ event = (val & 0xffffffff00000000) >> 32;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (metadata)
+ metadata[i] = (metadatamap >> i) & 1;
+ if (data)
+ data[i] = (datamap >> i) & 1;
+ }
+
+ if (event_p)
+ *event_p = event;
+ return ret;
}
+
int
-afr_lookup_xattr_req_prepare (afr_local_t *local, xlator_t *this,
- dict_t *xattr_req, loc_t *loc, void **gfid_req)
+__afr_inode_read_subvol_set_small (inode_t *inode, xlator_t *this,
+ unsigned char *data, unsigned char *metadata,
+ int event)
{
- int ret = -ENOMEM;
+ afr_private_t *priv = NULL;
+ uint16_t datamap = 0;
+ uint16_t metadatamap = 0;
+ uint64_t val = 0;
+ int i = 0;
- GF_ASSERT (gfid_req);
-
- *gfid_req = NULL;
- local->xattr_req = dict_new ();
- if (!local->xattr_req)
- goto out;
- if (xattr_req)
- dict_copy (xattr_req, local->xattr_req);
+ priv = this->private;
- afr_xattr_req_prepare (this, local->xattr_req, loc->path);
- ret = dict_set_uint64 (local->xattr_req, GLUSTERFS_INODELK_COUNT, 0);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "%s: Unable to set dict value for %s",
- loc->path, GLUSTERFS_INODELK_COUNT);
- }
- ret = dict_set_uint64 (local->xattr_req, GLUSTERFS_ENTRYLK_COUNT, 0);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "%s: Unable to set dict value for %s",
- loc->path, GLUSTERFS_ENTRYLK_COUNT);
- }
+ for (i = 0; i < priv->child_count; i++) {
+ if (data[i])
+ datamap |= (1 << i);
+ if (metadata[i])
+ metadatamap |= (1 << i);
+ }
- ret = dict_set_uint32 (local->xattr_req, GLUSTERFS_PARENT_ENTRYLK, 0);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "%s: Unable to set dict value for %s",
- loc->path, GLUSTERFS_PARENT_ENTRYLK);
- }
+ val = ((uint64_t) metadatamap) |
+ (((uint64_t) datamap) << 16) |
+ (((uint64_t) event) << 32);
- ret = dict_get_ptr (local->xattr_req, "gfid-req", gfid_req);
- if (ret) {
- gf_log (this->name, GF_LOG_DEBUG,
- "%s: failed to get the gfid from dict", loc->path);
- *gfid_req = NULL;
- } else {
- if (loc->parent != NULL)
- dict_del (local->xattr_req, "gfid-req");
- }
- ret = 0;
-out:
- return ret;
+ return __inode_ctx_set (inode, this, &val);
}
-void
-afr_lookup_save_gfid (uuid_t dst, void* new, const loc_t *loc)
+
+int
+__afr_inode_read_subvol_reset_small (inode_t *inode, xlator_t *this)
{
- inode_t *inode = NULL;
-
- inode = loc->inode;
- if (inode && !uuid_is_null (inode->gfid))
- uuid_copy (dst, inode->gfid);
- else if (!uuid_is_null (loc->gfid))
- uuid_copy (dst, loc->gfid);
- else if (new && !uuid_is_null (new))
- uuid_copy (dst, new);
+ int ret = -1;
+ uint16_t datamap = 0;
+ uint16_t metadatamap = 0;
+ uint32_t event = 0;
+ uint64_t val = 0;
+
+ ret = __inode_ctx_get (inode, this, &val);
+ (void) ret;
+
+ metadatamap = (val & 0x000000000000ffff) >> 0;
+ datamap = (val & 0x00000000ffff0000) >> 16;
+ event = 0;
+
+ val = ((uint64_t) metadatamap) |
+ (((uint64_t) datamap) << 16) |
+ (((uint64_t) event) << 32);
+
+ return __inode_ctx_set (inode, this, &val);
}
+
int
-afr_errno_count (int32_t *children, int *child_errno,
- unsigned int child_count, int32_t op_errno)
+__afr_inode_read_subvol_get (inode_t *inode, xlator_t *this,
+ unsigned char *data, unsigned char *metadata,
+ int *event_p)
{
- int i = 0;
- int errno_count = 0;
- int child = 0;
+ afr_private_t *priv = NULL;
+ int ret = -1;
- for (i = 0; i < child_count; i++) {
- if (children) {
- child = children[i];
- if (child == -1)
- break;
- } else {
- child = i;
- }
- if (child_errno[child] == op_errno)
- errno_count++;
- }
- return errno_count;
+ priv = this->private;
+
+ if (priv->child_count <= 16)
+ ret = __afr_inode_read_subvol_get_small (inode, this, data,
+ metadata, event_p);
+ else
+ /* TBD: allocate structure with array and read from it */
+ ret = -1;
+
+ return ret;
}
-int32_t
-afr_set_dict_gfid (dict_t *dict, uuid_t gfid)
+
+int
+__afr_inode_read_subvol_set (inode_t *inode, xlator_t *this, unsigned char *data,
+ unsigned char *metadata, int event)
{
- int ret = 0;
- uuid_t *pgfid = NULL;
+ afr_private_t *priv = NULL;
+ int ret = -1;
- GF_ASSERT (gfid);
+ priv = this->private;
- pgfid = GF_CALLOC (1, sizeof (uuid_t), gf_common_mt_char);
- if (!pgfid) {
- ret = -1;
- goto out;
- }
+ if (priv->child_count <= 16)
+ ret = __afr_inode_read_subvol_set_small (inode, this, data,
+ metadata, event);
+ else
+ ret = -1;
- uuid_copy (*pgfid, gfid);
+ return ret;
+}
- ret = dict_set_dynptr (dict, "gfid-req", pgfid, sizeof (uuid_t));
- if (ret)
- gf_log (THIS->name, GF_LOG_ERROR, "gfid set failed");
-out:
- if (ret && pgfid)
- GF_FREE (pgfid);
+int
+__afr_inode_read_subvol_reset (inode_t *inode, xlator_t *this)
+{
+ afr_private_t *priv = NULL;
+ int ret = -1;
- return ret;
+ priv = this->private;
+
+ if (priv->child_count <= 16)
+ ret = __afr_inode_read_subvol_reset_small (inode, this);
+ else
+ ret = -1;
+
+ return ret;
}
-afr_inode_ctx_t*
-afr_inode_ctx_get_from_addr (uint64_t addr, int32_t child_count)
+
+int
+afr_inode_read_subvol_get (inode_t *inode, xlator_t *this, unsigned char *data,
+ unsigned char *metadata, int *event_p)
{
- int ret = -1;
- afr_inode_ctx_t *ctx = NULL;
- size_t size = 0;
+ int ret = -1;
- GF_ASSERT (child_count > 0);
+ LOCK(&inode->lock);
+ {
+ ret = __afr_inode_read_subvol_get (inode, this, data,
+ metadata, event_p);
+ }
+ UNLOCK(&inode->lock);
- if (!addr) {
- ctx = GF_CALLOC (1, sizeof (*ctx),
- gf_afr_mt_inode_ctx_t);
- if (!ctx)
- goto out;
- size = sizeof (*ctx->fresh_children);
- ctx->fresh_children = GF_CALLOC (child_count, size,
- gf_afr_mt_int32_t);
- if (!ctx->fresh_children)
- goto out;
- } else {
- ctx = (afr_inode_ctx_t*) (long) addr;
- }
- ret = 0;
-out:
- if (ret && ctx) {
- if (ctx->fresh_children)
- GF_FREE (ctx->fresh_children);
- GF_FREE (ctx);
- ctx = NULL;
- }
- return ctx;
+ return ret;
}
-void
-afr_inode_get_ctx (xlator_t *this, inode_t *inode, afr_inode_params_t *params)
+
+int
+afr_inode_read_subvol_set (inode_t *inode, xlator_t *this, unsigned char *data,
+ unsigned char *metadata, int event)
{
- GF_ASSERT (inode);
- GF_ASSERT (params);
+ int ret = -1;
- int ret = 0;
- afr_inode_ctx_t *ctx = NULL;
- afr_private_t *priv = NULL;
- int i = 0;
- uint64_t ctx_addr = 0;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
+ LOCK(&inode->lock);
+ {
+ ret = __afr_inode_read_subvol_set (inode, this, data, metadata,
+ event);
+ }
+ UNLOCK(&inode->lock);
- priv = this->private;
- LOCK (&inode->lock);
- {
- ret = __inode_ctx_get (inode, this, &ctx_addr);
- if (ret < 0)
- goto unlock;
- ctx = afr_inode_ctx_get_from_addr (ctx_addr, priv->child_count);
- if (!ctx)
- goto unlock;
- switch (params->op) {
- case AFR_INODE_GET_READ_CTX:
- fresh_children = params->u.read_ctx.children;
- read_child = (int32_t)(ctx->masks &
- AFR_ICTX_READ_CHILD_MASK);
- params->u.read_ctx.read_child = read_child;
- if (!fresh_children)
- goto unlock;
- for (i = 0; i < priv->child_count; i++)
- fresh_children[i] = ctx->fresh_children[i];
- break;
- case AFR_INODE_GET_OPENDIR_DONE:
- params->u.value = _gf_false;
- if (ctx->masks & AFR_ICTX_OPENDIR_DONE_MASK)
- params->u.value = _gf_true;
- break;
- case AFR_INODE_GET_SPLIT_BRAIN:
- params->u.value = _gf_false;
- if (ctx->masks & AFR_ICTX_SPLIT_BRAIN_MASK)
- params->u.value = _gf_true;
- ;
- break;
- default:
- GF_ASSERT (0);
- break;
- }
- }
-unlock:
- UNLOCK (&inode->lock);
+ return ret;
}
-gf_boolean_t
-afr_is_split_brain (xlator_t *this, inode_t *inode)
+
+int
+afr_inode_read_subvol_reset (inode_t *inode, xlator_t *this)
{
- afr_inode_params_t params = {0};
+ int ret = -1;
+
+ LOCK(&inode->lock);
+ {
+ ret = __afr_inode_read_subvol_reset (inode, this);
+ }
+ UNLOCK(&inode->lock);
- params.op = AFR_INODE_GET_SPLIT_BRAIN;
- afr_inode_get_ctx (this, inode, &params);
- return params.u.value;
+ return ret;
}
-gf_boolean_t
-afr_is_opendir_done (xlator_t *this, inode_t *inode)
+
+int
+afr_accused_fill (xlator_t *this, dict_t *xdata, unsigned char *accused,
+ afr_transaction_type type)
{
- afr_inode_params_t params = {0};
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int idx = afr_index_for_transaction_type (type);
+ void *pending_raw = NULL;
+ int pending[3];
+ int ret = 0;
- params.op = AFR_INODE_GET_OPENDIR_DONE;
- afr_inode_get_ctx (this, inode, &params);
- return params.u.value;
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ ret = dict_get_ptr (xdata, priv->pending_key[i],
+ &pending_raw);
+ if (ret) /* no pending flags */
+ continue;
+ memcpy (pending, pending_raw, sizeof(pending));
+
+ if (ntoh32 (pending[idx]))
+ accused[i] = 1;
+ }
+
+ return 0;
}
-int32_t
-afr_inode_get_read_ctx (xlator_t *this, inode_t *inode, int32_t *fresh_children)
+int
+afr_accuse_smallfiles (xlator_t *this, struct afr_reply *replies,
+ unsigned char *data_accused)
{
- afr_inode_params_t params = {0};
+ int i = 0;
+ afr_private_t *priv = NULL;
+ uint64_t maxsize = 0;
- params.op = AFR_INODE_GET_READ_CTX;
- params.u.read_ctx.children = fresh_children;
- afr_inode_get_ctx (this, inode, &params);
- return params.u.read_ctx.read_child;
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (data_accused[i])
+ continue;
+ if (replies[i].poststat.ia_size > maxsize)
+ maxsize = replies[i].poststat.ia_size;
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (data_accused[i])
+ continue;
+ if (replies[i].poststat.ia_size < maxsize)
+ data_accused[i] = 1;
+ }
+
+ return 0;
}
-void
-afr_inode_ctx_set_read_child (afr_inode_ctx_t *ctx, int32_t read_child)
-{
- uint64_t remaining_mask = 0;
- uint64_t mask = 0;
- remaining_mask = (~AFR_ICTX_READ_CHILD_MASK & ctx->masks);
- mask = (AFR_ICTX_READ_CHILD_MASK & read_child);
- ctx->masks = remaining_mask | mask;
+int
+afr_replies_interpret (call_frame_t *frame, xlator_t *this, inode_t *inode)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ struct afr_reply *replies = NULL;
+ int event_generation = 0;
+ int i = 0;
+ unsigned char *data_accused = NULL;
+ unsigned char *metadata_accused = NULL;
+ unsigned char *data_readable = NULL;
+ unsigned char *metadata_readable = NULL;
+ int ret = 0;
+
+ local = frame->local;
+ priv = this->private;
+ replies = local->replies;
+ event_generation = local->event_generation;
+
+ data_accused = alloca0 (priv->child_count);
+ data_readable = alloca0 (priv->child_count);
+ metadata_accused = alloca0 (priv->child_count);
+ metadata_readable = alloca0 (priv->child_count);
+
+ for (i = 0; i < priv->child_count; i++) {
+ data_readable[i] = 1;
+ metadata_readable[i] = 1;
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid) {
+ data_readable[i] = 0;
+ metadata_readable[i] = 0;
+ continue;
+ }
+
+ if (replies[i].op_ret == -1) {
+ data_readable[i] = 0;
+ metadata_readable[i] = 0;
+ continue;
+ }
+
+ afr_accused_fill (this, replies[i].xdata, data_accused,
+ (inode->ia_type == IA_IFDIR) ?
+ AFR_ENTRY_TRANSACTION : AFR_DATA_TRANSACTION);
+
+ afr_accused_fill (this, replies[i].xdata,
+ metadata_accused, AFR_METADATA_TRANSACTION);
+
+ }
+
+ if (inode->ia_type != IA_IFDIR)
+ afr_accuse_smallfiles (this, replies, data_accused);
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (data_accused[i]) {
+ data_readable[i] = 0;
+ ret = 1;
+ }
+ if (metadata_accused[i]) {
+ metadata_readable[i] = 0;
+ ret = 1;
+ }
+ }
+
+ afr_inode_read_subvol_set (inode, this, data_readable,
+ metadata_readable, event_generation);
+ return ret;
}
-void
-afr_inode_ctx_set_read_ctx (afr_inode_ctx_t *ctx, int32_t read_child,
- int32_t *fresh_children, int32_t child_count)
+
+
+int
+afr_refresh_selfheal_done (int ret, call_frame_t *heal, void *opaque)
{
- int i = 0;
-
- afr_inode_ctx_set_read_child (ctx, read_child);
- for (i = 0; i < child_count; i++) {
- if (fresh_children)
- ctx->fresh_children[i] = fresh_children[i];
- else
- ctx->fresh_children[i] = -1;
- }
+ if (heal)
+ STACK_DESTROY (heal->root);
+ return 0;
}
-void
-afr_inode_ctx_rm_stale_children (afr_inode_ctx_t *ctx, int32_t *stale_children,
- int32_t child_count)
+int
+afr_inode_refresh_err (call_frame_t *frame, xlator_t *this)
{
- int i = 0;
- int32_t read_child = -1;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int err = 0;
- GF_ASSERT (stale_children);
- for (i = 0; i < child_count; i++) {
- if (stale_children[i] == -1)
- break;
- afr_children_rm_child (ctx->fresh_children,
- stale_children[i], child_count);
- }
- read_child = (int32_t)(ctx->masks & AFR_ICTX_READ_CHILD_MASK);
- if (!afr_is_child_present (ctx->fresh_children, child_count,
- read_child))
- afr_inode_ctx_set_read_child (ctx, ctx->fresh_children[0]);
-}
+ local = frame->local;
+ priv = this->private;
-void
-afr_inode_ctx_set_opendir_done (afr_inode_ctx_t *ctx)
-{
- uint64_t remaining_mask = 0;
- uint64_t mask = 0;
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->replies[i].valid && !local->replies[i].op_ret) {
+ err = 0;
+ goto ret;
+ }
+ }
- remaining_mask = (~AFR_ICTX_OPENDIR_DONE_MASK & ctx->masks);
- mask = (0xFFFFFFFFFFFFFFFFULL & AFR_ICTX_OPENDIR_DONE_MASK);
- ctx->masks = remaining_mask | mask;
+ err = afr_final_errno (local, priv);
+ret:
+ return -err;
}
-void
-afr_inode_ctx_set_splitbrain (afr_inode_ctx_t *ctx, gf_boolean_t set)
+
+int
+afr_refresh_selfheal_wrap (void *opaque)
{
- uint64_t remaining_mask = 0;
- uint64_t mask = 0;
+ call_frame_t *frame = opaque;
+ afr_local_t *local = NULL;
+ xlator_t *this = NULL;
+ int err = 0;
- if (set) {
- remaining_mask = (~AFR_ICTX_SPLIT_BRAIN_MASK & ctx->masks);
- mask = (0xFFFFFFFFFFFFFFFFULL & AFR_ICTX_SPLIT_BRAIN_MASK);
- ctx->masks = remaining_mask | mask;
- } else {
- ctx->masks = (~AFR_ICTX_SPLIT_BRAIN_MASK & ctx->masks);
- }
-}
+ local = frame->local;
+ this = frame->this;
-void
-afr_inode_set_ctx (xlator_t *this, inode_t *inode, afr_inode_params_t *params)
-{
- GF_ASSERT (inode);
- GF_ASSERT (params);
+ afr_selfheal (frame->this, local->refreshinode->gfid);
- int ret = 0;
- afr_inode_ctx_t *ctx = NULL;
- afr_private_t *priv = NULL;
- uint64_t ctx_addr = 0;
- gf_boolean_t set = _gf_false;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
- int32_t *stale_children = NULL;
+ afr_selfheal_unlocked_discover (frame, local->refreshinode,
+ local->refreshinode->gfid,
+ local->replies);
- priv = this->private;
- LOCK (&inode->lock);
- {
- ret = __inode_ctx_get (inode, this, &ctx_addr);
- if (ret < 0)
- ctx_addr = 0;
- ctx = afr_inode_ctx_get_from_addr (ctx_addr, priv->child_count);
- if (!ctx)
- goto unlock;
- switch (params->op) {
- case AFR_INODE_SET_READ_CTX:
- read_child = params->u.read_ctx.read_child;
- fresh_children = params->u.read_ctx.children;
- afr_inode_ctx_set_read_ctx (ctx, read_child,
- fresh_children,
- priv->child_count);
- break;
- case AFR_INODE_RM_STALE_CHILDREN:
- stale_children = params->u.read_ctx.children;
- afr_inode_ctx_rm_stale_children (ctx,
- stale_children,
- priv->child_count);
- break;
- case AFR_INODE_SET_OPENDIR_DONE:
- afr_inode_ctx_set_opendir_done (ctx);
- break;
- case AFR_INODE_SET_SPLIT_BRAIN:
- set = params->u.value;
- afr_inode_ctx_set_splitbrain (ctx, set);
- break;
- default:
- GF_ASSERT (0);
- break;
- }
- ret = __inode_ctx_put (inode, this, (uint64_t)ctx);
- if (ret) {
- gf_log_callingfn (this->name, GF_LOG_ERROR, "failed to "
- "set the inode ctx (%s)",
- uuid_utoa (inode->gfid));
- }
- }
-unlock:
- UNLOCK (&inode->lock);
-}
+ afr_replies_interpret (frame, this, local->refreshinode);
-void
-afr_set_split_brain (xlator_t *this, inode_t *inode, gf_boolean_t set)
-{
- afr_inode_params_t params = {0};
+ err = afr_inode_refresh_err (frame, this);
- params.op = AFR_INODE_SET_SPLIT_BRAIN;
- params.u.value = set;
- afr_inode_set_ctx (this, inode, &params);
-}
+ afr_replies_wipe (local, this->private);
-void
-afr_set_opendir_done (xlator_t *this, inode_t *inode)
-{
- afr_inode_params_t params = {0};
+ local->refreshfn (frame, this, err);
- params.op = AFR_INODE_SET_OPENDIR_DONE;
- afr_inode_set_ctx (this, inode, &params);
+ return 0;
}
-void
-afr_inode_set_read_ctx (xlator_t *this, inode_t *inode, int32_t read_child,
- int32_t *fresh_children)
+
+gf_boolean_t
+afr_selfheal_enabled (xlator_t *this)
{
- afr_inode_params_t params = {0};
- afr_private_t *priv = NULL;
+ afr_private_t *priv = NULL;
+ gf_boolean_t data = _gf_false;
- priv = this->private;
- GF_ASSERT (read_child >= 0);
- GF_ASSERT (fresh_children);
- GF_ASSERT (afr_is_child_present (fresh_children, priv->child_count,
- read_child));
-
- params.op = AFR_INODE_SET_READ_CTX;
- params.u.read_ctx.read_child = read_child;
- params.u.read_ctx.children = fresh_children;
- afr_inode_set_ctx (this, inode, &params);
+ priv = this->private;
+
+ gf_string2boolean (priv->data_self_heal, &data);
+
+ return data || priv->metadata_self_heal || priv->entry_self_heal;
}
-void
-afr_inode_rm_stale_children (xlator_t *this, inode_t *inode,
- int32_t *stale_children)
+
+
+int
+afr_inode_refresh_done (call_frame_t *frame, xlator_t *this)
{
- afr_inode_params_t params = {0};
+ call_frame_t *heal = NULL;
+ afr_local_t *local = NULL;
+ int ret = 0;
+ int err = 0;
- GF_ASSERT (stale_children);
+ local = frame->local;
- params.op = AFR_INODE_RM_STALE_CHILDREN;
- params.u.read_ctx.children = stale_children;
- afr_inode_set_ctx (this, inode, &params);
-}
+ ret = afr_replies_interpret (frame, this, local->refreshinode);
-gf_boolean_t
-afr_is_source_child (int32_t *sources, int32_t child_count, int32_t child)
-{
- gf_boolean_t source_xattrs = _gf_false;
+ err = afr_inode_refresh_err (frame, this);
- GF_ASSERT (child < child_count);
+ afr_replies_wipe (local, this->private);
- if ((child >= 0) && (child < child_count) &&
- sources[child]) {
- source_xattrs = _gf_true;
- }
- return source_xattrs;
+ if (ret && afr_selfheal_enabled (this)) {
+ heal = copy_frame (frame);
+ if (heal)
+ heal->root->pid = -1;
+ ret = synctask_new (this->ctx->env, afr_refresh_selfheal_wrap,
+ afr_refresh_selfheal_done, heal, frame);
+ if (ret)
+ goto refresh_done;
+ } else {
+ refresh_done:
+ local->refreshfn (frame, this, err);
+ }
+
+ return 0;
}
-gf_boolean_t
-afr_is_child_present (int32_t *success_children, int32_t child_count,
- int32_t child)
+
+int
+afr_inode_refresh_subvol_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, inode_t *inode,
+ struct iatt *buf, dict_t *xdata, struct iatt *par)
{
- gf_boolean_t success_child = _gf_false;
- int i = 0;
+ afr_local_t *local = NULL;
+ int call_child = (long) cookie;
+ int call_count = 0;
- GF_ASSERT (child < child_count);
+ local = frame->local;
- for (i = 0; i < child_count; i++) {
- if (success_children[i] == -1)
- break;
- if (child == success_children[i]) {
- success_child = _gf_true;
- break;
- }
- }
- return success_child;
+ local->replies[call_child].valid = 1;
+ local->replies[call_child].op_ret = op_ret;
+ local->replies[call_child].op_errno = op_errno;
+ if (op_ret != -1) {
+ local->replies[call_child].poststat = *buf;
+ local->replies[call_child].postparent = *par;
+ local->replies[call_child].xdata = dict_ref (xdata);
+ }
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ afr_inode_refresh_done (frame, this);
+
+ return 0;
}
-gf_boolean_t
-afr_is_read_child (int32_t *success_children, int32_t *sources,
- int32_t child_count, int32_t child)
+
+int
+afr_inode_refresh_subvol (call_frame_t *frame, xlator_t *this, int i,
+ inode_t *inode, dict_t *xdata)
{
- gf_boolean_t success_child = _gf_false;
- gf_boolean_t source = _gf_false;
+ loc_t loc = {0, };
+ afr_private_t *priv = NULL;
- GF_ASSERT (success_children);
- GF_ASSERT (child_count > 0);
+ priv = this->private;
- success_child = afr_is_child_present (success_children, child_count,
- child);
- if (!success_child)
- goto out;
- if (NULL == sources) {
- source = _gf_true;
- goto out;
- }
- source = afr_is_source_child (sources, child_count, child);
-out:
- return (success_child && source);
+ loc.inode = inode;
+ uuid_copy (loc.gfid, inode->gfid);
+
+ STACK_WIND_COOKIE (frame, afr_inode_refresh_subvol_cbk,
+ (void *) (long) i, priv->children[i],
+ priv->children[i]->fops->lookup, &loc, xdata);
+ return 0;
}
-/* If sources is NULL the xattrs are assumed to be of source for all
- * success_children.
- */
+
int
-afr_select_read_child_from_policy (int32_t *success_children, int32_t child_count,
- int32_t prev_read_child,
- int32_t config_read_child, int32_t *sources)
+afr_inode_refresh_do (call_frame_t *frame, xlator_t *this)
{
- int32_t read_child = -1;
- int i = 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = 0;
+ int i = 0;
+ dict_t *xdata = NULL;
- GF_ASSERT (success_children);
+ priv = this->private;
+ local = frame->local;
- read_child = prev_read_child;
- if (afr_is_read_child (success_children, sources, child_count,
- read_child))
- goto out;
+ afr_replies_wipe (local, priv);
- read_child = config_read_child;
- if (afr_is_read_child (success_children, sources, child_count,
- read_child))
- goto out;
+ xdata = dict_new ();
+ if (!xdata) {
+ afr_inode_refresh_done (frame, this);
+ return 0;
+ }
- for (i = 0; i < child_count; i++) {
- read_child = success_children[i];
- if (read_child < 0)
- break;
- if (afr_is_read_child (success_children, sources, child_count,
- read_child))
- goto out;
- }
- read_child = -1;
+ if (afr_xattr_req_prepare (this, xdata) != 0) {
+ dict_unref (xdata);
+ afr_inode_refresh_done (frame, this);
+ return 0;
+ }
-out:
- return read_child;
+ local->call_count = AFR_COUNT (local->child_up, priv->child_count);
+
+ call_count = local->call_count;
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->child_up[i])
+ continue;
+
+ afr_inode_refresh_subvol (frame, this, i, local->refreshinode,
+ xdata);
+
+ if (!--call_count)
+ break;
+ }
+
+ dict_unref (xdata);
+
+ return 0;
}
-/* This function should be used when all the success_children are sources
- */
-void
-afr_set_read_ctx_from_policy (xlator_t *this, inode_t *inode,
- int32_t *fresh_children, int32_t prev_read_child,
- int32_t config_read_child)
+
+int
+afr_inode_refresh (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ afr_inode_refresh_cbk_t refreshfn)
{
- int read_child = -1;
- afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
- priv = this->private;
- read_child = afr_select_read_child_from_policy (fresh_children,
- priv->child_count,
- prev_read_child,
- config_read_child,
- NULL);
- if (read_child >= 0)
- afr_inode_set_read_ctx (this, inode, read_child,
- fresh_children);
+ local = frame->local;
+
+ local->refreshfn = refreshfn;
+
+ if (local->refreshinode) {
+ inode_unref (local->refreshinode);
+ local->refreshinode = NULL;
+ }
+
+ local->refreshinode = inode_ref (inode);
+
+ afr_inode_refresh_do (frame, this);
+
+ return 0;
}
-/* afr_next_call_child ()
- * This is a common function used by all the read-type fops
- * This function should not be called with the inode's read_children array.
- * The fop's handler should make a copy of the inode's read_children,
- * preferred read_child into the local vars, because while this function is
- * in execution there is a chance for inode's read_ctx to change.
- */
-int32_t
-afr_next_call_child (int32_t *fresh_children, unsigned char *child_up,
- size_t child_count, int32_t *last_index,
- int32_t read_child)
+
+int
+afr_xattr_req_prepare (xlator_t *this, dict_t *xattr_req)
{
- int next_index = 0;
- int32_t next_call_child = -1;
+ int i = 0;
+ afr_private_t *priv = NULL;
+ int ret = 0;
- GF_ASSERT (last_index);
+ priv = this->private;
- next_index = *last_index;
-retry:
- next_index++;
- if ((next_index >= child_count) ||
- (fresh_children[next_index] == -1))
- goto out;
- if ((fresh_children[next_index] == read_child) ||
- (!child_up[fresh_children[next_index]]))
- goto retry;
- *last_index = next_index;
- next_call_child = fresh_children[next_index];
-out:
- return next_call_child;
+ for (i = 0; i < priv->child_count; i++) {
+ ret = dict_set_uint64 (xattr_req, priv->pending_key[i],
+ AFR_NUM_CHANGE_LOGS * sizeof(int));
+ if (ret < 0)
+ gf_log (this->name, GF_LOG_WARNING,
+ "Unable to set dict value for %s",
+ priv->pending_key[i]);
+ /* 3 = data+metadata+entry */
+ }
+ ret = dict_set_uint64 (xattr_req, AFR_DIRTY,
+ AFR_NUM_CHANGE_LOGS * sizeof(int));
+ if (ret) {
+ gf_log (this->name, GF_LOG_DEBUG, "failed to set dirty "
+ "query flag");
+ }
+
+ return ret;
}
- /* This function should not be called with the inode's read_children array.
- * The fop's handler should make a copy of the inode's read_children,
- * preferred read_child into the local vars, because while this function is
- * in execution there is a chance for inode's read_ctx to change.
- */
-int32_t
-afr_get_call_child (xlator_t *this, unsigned char *child_up, int32_t read_child,
- int32_t *fresh_children,
- int32_t *call_child, int32_t *last_index)
+int
+afr_lookup_xattr_req_prepare (afr_local_t *local, xlator_t *this,
+ dict_t *xattr_req, loc_t *loc)
{
- int ret = 0;
- afr_private_t *priv = NULL;
- int i = 0;
-
- GF_ASSERT (child_up);
- GF_ASSERT (call_child);
- GF_ASSERT (last_index);
- GF_ASSERT (fresh_children);
+ int ret = -ENOMEM;
- if (read_child < 0) {
- ret = -EIO;
+ local->xattr_req = dict_new ();
+ if (!local->xattr_req)
goto out;
- }
- priv = this->private;
- *call_child = -1;
- *last_index = -1;
+ if (xattr_req)
+ dict_copy (xattr_req, local->xattr_req);
- if (child_up[read_child]) {
- *call_child = read_child;
- } else {
- for (i = 0; i < priv->child_count; i++) {
- if (fresh_children[i] == -1)
- break;
- if (child_up[fresh_children[i]]) {
- *call_child = fresh_children[i];
- ret = 0;
- break;
- }
- }
+ ret = afr_xattr_req_prepare (this, local->xattr_req);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "%s: Unable to prepare xattr_req", loc->path);
+ }
- if (*call_child == -1) {
- ret = -ENOTCONN;
- goto out;
- }
+ ret = dict_set_uint64 (local->xattr_req, GLUSTERFS_INODELK_COUNT, 0);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "%s: Unable to set dict value for %s",
+ loc->path, GLUSTERFS_INODELK_COUNT);
+ }
+ ret = dict_set_uint64 (local->xattr_req, GLUSTERFS_ENTRYLK_COUNT, 0);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "%s: Unable to set dict value for %s",
+ loc->path, GLUSTERFS_ENTRYLK_COUNT);
+ }
- *last_index = i;
+ ret = dict_set_uint32 (local->xattr_req, GLUSTERFS_PARENT_ENTRYLK, 0);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "%s: Unable to set dict value for %s",
+ loc->path, GLUSTERFS_PARENT_ENTRYLK);
}
+
+ ret = 0;
out:
- gf_log (this->name, GF_LOG_DEBUG, "Returning %d, call_child: %d, "
- "last_index: %d", ret, *call_child, *last_index);
return ret;
}
-void
-afr_reset_xattr (dict_t **xattr, unsigned int child_count)
+
+int
+afr_hash_child (inode_t *inode, int32_t child_count, int hashmode)
{
- unsigned int i = 0;
+ uuid_t gfid_copy = {0,};
+ pid_t pid;
- if (!xattr)
- goto out;
- for (i = 0; i < child_count; i++) {
- if (xattr[i]) {
- dict_unref (xattr[i]);
- xattr[i] = NULL;
- }
+ if (!hashmode) {
+ return -1;
}
-out:
- return;
+
+ if (inode) {
+ uuid_copy (gfid_copy, inode->gfid);
+ }
+
+ if (hashmode > 1) {
+ /*
+ * Why getpid? Because it's one of the cheapest calls
+ * available - faster than gethostname etc. - and returns a
+ * constant-length value that's sure to be shorter than a UUID.
+ * It's still very unlikely to be the same across clients, so
+ * it still provides good mixing. We're not trying for
+ * perfection here. All we need is a low probability that
+ * multiple clients won't converge on the same subvolume.
+ */
+ pid = getpid();
+ memcpy (gfid_copy, &pid, sizeof(pid));
+ }
+
+ return SuperFastHash((char *)gfid_copy,
+ sizeof(gfid_copy)) % child_count;
}
-void
-afr_local_sh_cleanup (afr_local_t *local, xlator_t *this)
+
+int
+afr_read_subvol_select_by_policy (inode_t *inode, xlator_t *this,
+ unsigned char *readable)
{
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
+ afr_private_t *priv = NULL;
+ int read_subvol = -1;
+ int i = 0;
- sh = &local->self_heal;
- priv = this->private;
+ priv = this->private;
- if (sh->buf)
- GF_FREE (sh->buf);
+ /* first preference - explicitly specified or local subvolume */
+ if (priv->read_child >= 0 && readable[priv->read_child])
+ return priv->read_child;
- if (sh->parentbufs)
- GF_FREE (sh->parentbufs);
+ /* second preference - use hashed mode */
+ read_subvol = afr_hash_child (inode, priv->child_count,
+ priv->hash_mode);
+ if (read_subvol >= 0 && readable[read_subvol])
+ return read_subvol;
- if (sh->inode)
- inode_unref (sh->inode);
+ for (i = 0; i < priv->child_count; i++) {
+ if (readable[i])
+ return i;
+ }
- if (sh->xattr) {
- afr_reset_xattr (sh->xattr, priv->child_count);
- GF_FREE (sh->xattr);
- }
+ /* no readable subvolumes, either split brain or all subvols down */
- if (sh->child_errno)
- GF_FREE (sh->child_errno);
+ return -1;
+}
- afr_matrix_cleanup (sh->pending_matrix, priv->child_count);
- afr_matrix_cleanup (sh->delta_matrix, priv->child_count);
- if (sh->sources)
- GF_FREE (sh->sources);
+int
+afr_inode_read_subvol_type_get (inode_t *inode, xlator_t *this,
+ unsigned char *readable, int *event_p,
+ int type)
+{
+ int ret = -1;
- if (sh->success)
- GF_FREE (sh->success);
+ if (type == AFR_METADATA_TRANSACTION)
+ ret = afr_inode_read_subvol_get (inode, this, 0, readable,
+ event_p);
+ else
+ ret = afr_inode_read_subvol_get (inode, this, readable, 0,
+ event_p);
+ return ret;
+}
- if (sh->locked_nodes)
- GF_FREE (sh->locked_nodes);
- if (sh->healing_fd) {
- fd_unref (sh->healing_fd);
- sh->healing_fd = NULL;
- }
-
- if (sh->linkname)
- GF_FREE ((char *)sh->linkname);
+int
+afr_read_subvol_get (inode_t *inode, xlator_t *this, int *subvol_p,
+ int *event_p, afr_transaction_type type)
+{
+ afr_private_t *priv = NULL;
+ unsigned char *data_readable = NULL;
+ unsigned char *metadata_readable = NULL;
+ unsigned char *readable = NULL;
+ unsigned char *intersection = NULL;
+ int subvol = -1;
+ int event = 0;
- if (sh->success_children)
- GF_FREE (sh->success_children);
+ priv = this->private;
- if (sh->fresh_children)
- GF_FREE (sh->fresh_children);
+ readable = alloca0 (priv->child_count);
+ data_readable = alloca0 (priv->child_count);
+ metadata_readable = alloca0 (priv->child_count);
+ intersection = alloca0 (priv->child_count);
- if (sh->fresh_parent_dirs)
- GF_FREE (sh->fresh_parent_dirs);
+ afr_inode_read_subvol_type_get (inode, this, readable, &event, type);
- loc_wipe (&sh->parent_loc);
- loc_wipe (&sh->lookup_loc);
+ afr_inode_read_subvol_get (inode, this, data_readable, metadata_readable,
+ &event);
- if (sh->checksum)
- GF_FREE (sh->checksum);
+ AFR_INTERSECT (intersection, data_readable, metadata_readable,
+ priv->child_count);
- if (sh->write_needed)
- GF_FREE (sh->write_needed);
- if (sh->healing_fd)
- fd_unref (sh->healing_fd);
+ if (AFR_COUNT (intersection, priv->child_count) > 0)
+ subvol = afr_read_subvol_select_by_policy (inode, this,
+ intersection);
+ else
+ subvol = afr_read_subvol_select_by_policy (inode, this,
+ readable);
+ if (subvol_p)
+ *subvol_p = subvol;
+ if (event_p)
+ *event_p = event;
+ return subvol;
}
void
afr_local_transaction_cleanup (afr_local_t *local, xlator_t *this)
{
- afr_private_t * priv = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
priv = this->private;
afr_matrix_cleanup (local->pending, priv->child_count);
- if (local->internal_lock.locked_nodes)
- GF_FREE (local->internal_lock.locked_nodes);
-
- if (local->internal_lock.inode_locked_nodes)
- GF_FREE (local->internal_lock.inode_locked_nodes);
+ GF_FREE (local->internal_lock.locked_nodes);
- if (local->internal_lock.entry_locked_nodes)
- GF_FREE (local->internal_lock.entry_locked_nodes);
+ for (i = 0; local->internal_lock.inodelk[i].domain; i++) {
+ GF_FREE (local->internal_lock.inodelk[i].locked_nodes);
+ }
- if (local->internal_lock.lower_locked_nodes)
- GF_FREE (local->internal_lock.lower_locked_nodes);
+ GF_FREE (local->internal_lock.lower_locked_nodes);
+ afr_entry_lockee_cleanup (&local->internal_lock);
GF_FREE (local->transaction.pre_op);
- GF_FREE (local->transaction.child_errno);
GF_FREE (local->transaction.eager_lock);
GF_FREE (local->transaction.basename);
@@ -821,8 +867,37 @@ afr_local_transaction_cleanup (afr_local_t *local, xlator_t *this)
loc_wipe (&local->transaction.parent_loc);
loc_wipe (&local->transaction.new_parent_loc);
+
+}
+
+
+void
+afr_replies_wipe (afr_local_t *local, afr_private_t *priv)
+{
+ int i;
+
+ if (!local->replies)
+ return;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->replies[i].xdata) {
+ dict_unref (local->replies[i].xdata);
+ local->replies[i].xdata = NULL;
+ }
+ }
+
+ memset (local->replies, 0, sizeof(*local->replies) * priv->child_count);
}
+void
+afr_remove_eager_lock_stub (afr_local_t *local)
+{
+ LOCK (&local->fd->lock);
+ {
+ list_del_init (&local->transaction.eager_locked);
+ }
+ UNLOCK (&local->fd->lock);
+}
void
afr_local_cleanup (afr_local_t *local, xlator_t *this)
@@ -832,7 +907,11 @@ afr_local_cleanup (afr_local_t *local, xlator_t *this)
if (!local)
return;
- afr_local_sh_cleanup (local, this);
+ syncbarrier_destroy (&local->barrier);
+
+ if (local->transaction.eager_lock_on &&
+ !list_empty (&local->transaction.eager_locked))
+ afr_remove_eager_lock_stub (local);
afr_local_transaction_cleanup (local, this);
@@ -850,55 +929,33 @@ afr_local_cleanup (afr_local_t *local, xlator_t *this)
if (local->dict)
dict_unref (local->dict);
- if (local->child_up)
- GF_FREE (local->child_up);
+ afr_replies_wipe (local, priv);
+ GF_FREE(local->replies);
- if (local->child_errno)
- GF_FREE (local->child_errno);
+ GF_FREE (local->child_up);
- if (local->fresh_children)
- GF_FREE (local->fresh_children);
+ GF_FREE (local->read_attempted);
- if (local->fd_open_on)
- GF_FREE (local->fd_open_on);
+ GF_FREE (local->readable);
- { /* lookup */
- if (local->cont.lookup.xattrs) {
- afr_reset_xattr (local->cont.lookup.xattrs,
- priv->child_count);
- GF_FREE (local->cont.lookup.xattrs);
- local->cont.lookup.xattrs = NULL;
- }
+ if (local->inode)
+ inode_unref (local->inode);
- if (local->cont.lookup.xattr) {
- dict_unref (local->cont.lookup.xattr);
- }
+ if (local->parent)
+ inode_unref (local->parent);
- if (local->cont.lookup.inode) {
- inode_unref (local->cont.lookup.inode);
- }
+ if (local->parent2)
+ inode_unref (local->parent2);
- if (local->cont.lookup.postparents)
- GF_FREE (local->cont.lookup.postparents);
-
- if (local->cont.lookup.bufs)
- GF_FREE (local->cont.lookup.bufs);
-
- if (local->cont.lookup.success_children)
- GF_FREE (local->cont.lookup.success_children);
-
- if (local->cont.lookup.sources)
- GF_FREE (local->cont.lookup.sources);
- }
+ if (local->refreshinode)
+ inode_unref (local->refreshinode);
{ /* getxattr */
- if (local->cont.getxattr.name)
- GF_FREE (local->cont.getxattr.name);
+ GF_FREE (local->cont.getxattr.name);
}
{ /* lk */
- if (local->cont.lk.locked_nodes)
- GF_FREE (local->cont.lk.locked_nodes);
+ GF_FREE (local->cont.lk.locked_nodes);
}
{ /* create */
@@ -953,8 +1010,7 @@ afr_local_cleanup (afr_local_t *local, xlator_t *this)
}
{ /* opendir */
- if (local->cont.opendir.checksum)
- GF_FREE (local->cont.opendir.checksum);
+ GF_FREE (local->cont.opendir.checksum);
}
{ /* readdirp */
@@ -987,1196 +1043,730 @@ afr_frame_return (call_frame_t *frame)
return call_count;
}
-int
-afr_set_elem_count_get (unsigned char *elems, int child_count)
-{
- int i = 0;
- int ret = 0;
-
- for (i = 0; i < child_count; i++)
- if (elems[i])
- ret++;
- return ret;
-}
-
-/**
- * up_children_count - return the number of children that are up
- */
-
-unsigned int
-afr_up_children_count (unsigned char *child_up, unsigned int child_count)
-{
- return afr_set_elem_count_get (child_up, child_count);
-}
-
-unsigned int
-afr_locked_children_count (unsigned char *children, unsigned int child_count)
-{
- return afr_set_elem_count_get (children, child_count);
-}
-
-unsigned int
-afr_pre_op_done_children_count (unsigned char *pre_op,
- unsigned int child_count)
-{
- return afr_set_elem_count_get (pre_op, child_count);
-}
gf_boolean_t
-afr_is_fresh_lookup (loc_t *loc, xlator_t *this)
+afr_is_entry_possibly_under_txn (afr_local_t *local, xlator_t *this)
{
- uint64_t ctx = 0;
- int32_t ret = 0;
-
- GF_ASSERT (loc);
- GF_ASSERT (this);
- GF_ASSERT (loc->inode);
+ int i = 0;
+ int tmp = 0;
+ afr_private_t *priv = NULL;
- ret = inode_ctx_get (loc->inode, this, &ctx);
- if (0 == ret)
- return _gf_false;
- return _gf_true;
-}
+ priv = this->private;
-void
-afr_update_loc_gfids (loc_t *loc, struct iatt *buf, struct iatt *postparent)
-{
- GF_ASSERT (loc);
- GF_ASSERT (buf);
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].xdata)
+ continue;
+ if (dict_get_int32 (local->replies[i].xdata,
+ GLUSTERFS_PARENT_ENTRYLK,
+ &tmp) == 0)
+ if (tmp)
+ return _gf_true;
+ }
- uuid_copy (loc->gfid, buf->ia_gfid);
- if (postparent)
- uuid_copy (loc->pargfid, postparent->ia_gfid);
+ return _gf_false;
}
-int
-afr_lookup_build_response_params (afr_local_t *local, xlator_t *this)
-{
- struct iatt *buf = NULL;
- struct iatt *postparent = NULL;
- dict_t **xattr = NULL;
- int32_t *success_children = NULL;
- int32_t *sources = NULL;
- afr_private_t *priv = NULL;
- int32_t read_child = -1;
- int ret = 0;
- int i = 0;
-
- GF_ASSERT (local);
- buf = &local->cont.lookup.buf;
- postparent = &local->cont.lookup.postparent;
- xattr = &local->cont.lookup.xattr;
- priv = this->private;
-
- read_child = afr_inode_get_read_ctx (this, local->cont.lookup.inode,
- local->fresh_children);
- if (read_child < 0) {
- ret = -1;
- goto out;
- }
- success_children = local->cont.lookup.success_children;
- sources = local->cont.lookup.sources;
- memset (sources, 0, sizeof (*sources) * priv->child_count);
- afr_children_intersection_get (local->fresh_children, success_children,
- sources, priv->child_count);
- if (!sources[read_child]) {
- read_child = -1;
- for (i = 0; i < priv->child_count; i++) {
- if (sources[i]) {
- read_child = i;
- break;
- }
- }
- }
- if (read_child < 0) {
- ret = -1;
- goto out;
- }
- gf_log (this->name, GF_LOG_DEBUG, "Building lookup response from %d",
- read_child);
- if (!*xattr)
- *xattr = dict_ref (local->cont.lookup.xattrs[read_child]);
- *buf = local->cont.lookup.bufs[read_child];
- *postparent = local->cont.lookup.postparents[read_child];
-
- if (IA_INVAL == local->cont.lookup.inode->ia_type) {
- /* fix for RT #602 */
- local->cont.lookup.inode->ia_type = buf->ia_type;
- }
-out:
- return ret;
-}
-
-static void
-afr_lookup_update_lk_counts (afr_local_t *local, xlator_t *this,
- int child_index, dict_t *xattr)
-{
- uint32_t inodelk_count = 0;
- uint32_t entrylk_count = 0;
- int ret = -1;
- uint32_t parent_entrylk = 0;
-
- GF_ASSERT (local);
- GF_ASSERT (this);
- GF_ASSERT (xattr);
- GF_ASSERT (child_index >= 0);
-
- ret = dict_get_uint32 (xattr, GLUSTERFS_INODELK_COUNT,
- &inodelk_count);
- if (ret == 0)
- local->inodelk_count += inodelk_count;
-
- ret = dict_get_uint32 (xattr, GLUSTERFS_ENTRYLK_COUNT,
- &entrylk_count);
- if (ret == 0)
- local->entrylk_count += entrylk_count;
- ret = dict_get_uint32 (xattr, GLUSTERFS_PARENT_ENTRYLK,
- &parent_entrylk);
- if (!ret)
- local->cont.lookup.parent_entrylk += parent_entrylk;
-}
+/*
+ * Quota size xattrs are not maintained by afr. There is a
+ * possibility that they differ even when both the directory changelog xattrs
+ * suggest everything is fine. So if there is at least one 'source' check among
+ * the sources which has the maximum quota size. Otherwise check among all the
+ * available ones for maximum quota size. This way if there is a source and
+ * stale copies it always votes for the 'source'.
+ * */
static void
-afr_lookup_set_self_heal_params_by_xattr (afr_local_t *local, xlator_t *this,
- dict_t *xattr)
-{
- GF_ASSERT (local);
- GF_ASSERT (this);
- GF_ASSERT (xattr);
-
- if (afr_sh_has_metadata_pending (xattr, this)) {
- local->self_heal.do_metadata_self_heal = _gf_true;
- gf_log(this->name, GF_LOG_DEBUG,
- "metadata self-heal is pending for %s.",
- local->loc.path);
- }
-
- if (afr_sh_has_entry_pending (xattr, this)) {
- local->self_heal.do_entry_self_heal = _gf_true;
- gf_log(this->name, GF_LOG_DEBUG,
- "entry self-heal is pending for %s.", local->loc.path);
- }
-
- if (afr_sh_has_data_pending (xattr, this)) {
- local->self_heal.do_data_self_heal = _gf_true;
- gf_log(this->name, GF_LOG_DEBUG,
- "data self-heal is pending for %s.", local->loc.path);
- }
+afr_handle_quota_size (call_frame_t *frame, xlator_t *this)
+{
+ unsigned char *readable = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ struct afr_reply *replies = NULL;
+ int i = 0;
+ uint64_t size = 0;
+ uint64_t max_size = 0;
+ int readable_cnt = 0;
+
+ local = frame->local;
+ priv = this->private;
+ replies = local->replies;
+
+ readable = alloca0 (priv->child_count);
+
+ afr_inode_read_subvol_get (local->inode, this, readable, 0, 0);
+
+ readable_cnt = AFR_COUNT (readable, priv->child_count);
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid || replies[i].op_ret == -1)
+ continue;
+ if (readable_cnt && !readable[i])
+ continue;
+ if (!replies[i].xdata)
+ continue;
+ if (dict_get_uint64 (replies[i].xdata, QUOTA_SIZE_KEY, &size))
+ continue;
+ if (size > max_size)
+ max_size = size;
+ }
+
+ if (!max_size)
+ return;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid || replies[i].op_ret == -1)
+ continue;
+ if (readable_cnt && !readable[i])
+ continue;
+ if (!replies[i].xdata)
+ continue;
+ if (dict_set_uint64 (replies[i].xdata, QUOTA_SIZE_KEY, max_size))
+ continue;
+ }
}
-static void
-afr_detect_self_heal_by_iatt (afr_local_t *local, xlator_t *this,
- struct iatt *buf, struct iatt *lookup_buf)
-{
- if (PERMISSION_DIFFERS (buf, lookup_buf)) {
- /* mismatching permissions */
- gf_log (this->name, GF_LOG_INFO,
- "permissions differ for %s ", local->loc.path);
- local->self_heal.do_metadata_self_heal = _gf_true;
- }
-
- if (OWNERSHIP_DIFFERS (buf, lookup_buf)) {
- /* mismatching permissions */
- local->self_heal.do_metadata_self_heal = _gf_true;
- gf_log (this->name, GF_LOG_INFO,
- "ownership differs for %s ", local->loc.path);
- }
-
- if (SIZE_DIFFERS (buf, lookup_buf)
- && IA_ISREG (buf->ia_type)) {
- gf_log (this->name, GF_LOG_INFO,
- "size differs for %s ", local->loc.path);
- local->self_heal.do_data_self_heal = _gf_true;
- }
-
- if (uuid_compare (buf->ia_gfid, lookup_buf->ia_gfid)) {
- /* mismatching gfid */
- gf_log (this->name, GF_LOG_WARNING,
- "%s: gfid different on subvolume", local->loc.path);
- }
-}
static void
-afr_detect_self_heal_by_lookup_status (afr_local_t *local, xlator_t *this,
- gf_boolean_t split_brain)
+afr_lookup_done (call_frame_t *frame, xlator_t *this)
{
- GF_ASSERT (local);
- GF_ASSERT (this);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = -1;
+ int op_errno = 0;
+ int read_subvol = 0;
+ unsigned char *readable = NULL;
+ int event = 0;
+ struct afr_reply *replies = NULL;
+ uuid_t read_gfid = {0, };
+ gf_boolean_t locked_entry = _gf_false;
+ gf_boolean_t can_interpret = _gf_true;
- if ((local->success_count > 0) && (local->enoent_count > 0)) {
- local->self_heal.do_metadata_self_heal = _gf_true;
- local->self_heal.do_data_self_heal = _gf_true;
- local->self_heal.do_entry_self_heal = _gf_true;
- local->self_heal.do_gfid_self_heal = _gf_true;
- local->self_heal.do_missing_entry_self_heal = _gf_true;
- gf_log(this->name, GF_LOG_INFO,
- "entries are missing in lookup of %s.",
- local->loc.path);
- //If all self-heals are needed no need to check for other rules
- goto out;
- }
+ priv = this->private;
+ local = frame->local;
+ replies = local->replies;
- if ((local->success_count > 0) && split_brain &&
- IA_ISREG (local->cont.lookup.inode->ia_type)) {
- local->self_heal.do_data_self_heal = _gf_true;
- local->self_heal.do_gfid_self_heal = _gf_true;
- gf_log (this->name, GF_LOG_WARNING,
- "split brain detected during lookup of %s.",
- local->loc.path);
- }
+ locked_entry = afr_is_entry_possibly_under_txn (local, this);
-out:
- return;
-}
+ readable = alloca0 (priv->child_count);
-gf_boolean_t
-afr_can_self_heal_proceed (afr_self_heal_t *sh, afr_private_t *priv)
-{
- GF_ASSERT (sh);
- GF_ASSERT (priv);
+ afr_inode_read_subvol_get (local->loc.parent, this, readable,
+ NULL, &event);
- return (sh->do_gfid_self_heal
- || sh->do_missing_entry_self_heal
- || (afr_data_self_heal_enabled (priv->data_self_heal) &&
- sh->do_data_self_heal)
- || (priv->metadata_self_heal && sh->do_metadata_self_heal)
- || (priv->entry_self_heal && sh->do_entry_self_heal));
+ /* First, check if we have an ESTALE from somewhere,
+ If so, propagate that so that a revalidate can be
+ issued
+ */
+ op_errno = afr_final_errno (frame->local, this->private);
+ local->op_errno = op_errno;
+ if (op_errno == ESTALE) {
+ local->op_errno = op_errno;
+ local->op_ret = -1;
+ goto unwind;
+ }
+
+ read_subvol = -1;
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid)
+ continue;
+
+ if (locked_entry && replies[i].op_ret == -1 &&
+ replies[i].op_errno == ENOENT) {
+ /* Second, check entry is still
+ "underway" in creation */
+ local->op_ret = -1;
+ local->op_errno = ENOENT;
+ read_subvol = i;
+ goto unwind;
+ }
+
+ if (replies[i].op_ret == -1)
+ continue;
+
+ if (read_subvol == -1 || !readable[read_subvol]) {
+ read_subvol = i;
+ uuid_copy (read_gfid, replies[i].poststat.ia_gfid);
+ local->op_ret = 0;
+ }
+ }
+
+ if (read_subvol == -1)
+ goto unwind;
+ /* We now have a read_subvol, which is readable[] (if there
+ were any). Next we look for GFID mismatches. We don't
+ consider a GFID mismatch as an error if read_subvol is
+ readable[] but the mismatching GFID subvol is not.
+ */
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid || replies[i].op_ret == -1) {
+ if (priv->child_up[i])
+ can_interpret = _gf_false;
+ continue;
+ }
+
+ if (!uuid_compare (replies[i].poststat.ia_gfid,
+ read_gfid))
+ continue;
+
+ can_interpret = _gf_false;
+
+ if (locked_entry)
+ continue;
+
+ /* Now GFIDs mismatch. It's OK as long as this subvol
+ is not readable[] but read_subvol is */
+ if (readable[read_subvol] && !readable[i])
+ continue;
+
+ /* LOG ERROR */
+ local->op_ret = -1;
+ local->op_errno = EIO;
+ goto unwind;
+ }
+
+ /* Forth, for the finalized GFID, pick the best subvolume
+ to return stats from.
+ */
+ if (can_interpret) {
+ /* It is safe to call afr_replies_interpret() because we have
+ a response from all the UP subvolumes and all of them resolved
+ to the same GFID
+ */
+ if (afr_replies_interpret (frame, this, local->inode)) {
+ read_subvol = afr_data_subvol_get (local->inode, this,
+ 0, 0);
+ afr_inode_read_subvol_reset (local->inode, this);
+ goto cant_interpret;
+ } else {
+ read_subvol = afr_data_subvol_get (local->inode, this,
+ 0, 0);
+ }
+ } else {
+ cant_interpret:
+ if (read_subvol == -1)
+ dict_del (replies[0].xdata, GF_CONTENT_KEY);
+ else
+ dict_del (replies[read_subvol].xdata, GF_CONTENT_KEY);
+ }
+
+ afr_handle_quota_size (frame, this);
+
+unwind:
+ if (read_subvol == -1)
+ read_subvol = 0;
+
+ AFR_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
+ local->inode, &local->replies[read_subvol].poststat,
+ local->replies[read_subvol].xdata,
+ &local->replies[read_subvol].postparent);
}
-afr_transaction_type
-afr_transaction_type_get (ia_type_t ia_type)
-{
- afr_transaction_type type = AFR_METADATA_TRANSACTION;
-
- GF_ASSERT (ia_type != IA_INVAL);
-
- if (IA_ISDIR (ia_type)) {
- type = AFR_ENTRY_TRANSACTION;
- } else if (IA_ISREG (ia_type)) {
- type = AFR_DATA_TRANSACTION;
- }
- return type;
-}
+/*
+ * During a lookup, some errors are more "important" than
+ * others in that they must be given higher priority while
+ * returning to the user.
+ *
+ * The hierarchy is ESTALE > ENOENT > others
+ */
int
-afr_lookup_select_read_child (afr_local_t *local, xlator_t *this,
- int32_t *read_child)
+afr_higher_errno (int32_t old_errno, int32_t new_errno)
{
- ia_type_t ia_type = IA_INVAL;
- int32_t source = -1;
- int ret = -1;
- dict_t **xattrs = NULL;
- int32_t *success_children = NULL;
- afr_transaction_type type = AFR_METADATA_TRANSACTION;
-
- GF_ASSERT (local);
- GF_ASSERT (this);
- GF_ASSERT (local->success_count > 0);
-
- success_children = local->cont.lookup.success_children;
- /*We can take the success_children[0] only because we already
- *handle the conflicting children other wise, we could select the
- *read_child based on wrong file type
- */
- ia_type = local->cont.lookup.bufs[success_children[0]].ia_type;
- type = afr_transaction_type_get (ia_type);
- xattrs = local->cont.lookup.xattrs;
- source = afr_lookup_select_read_child_by_txn_type (this, local, xattrs,
- type);
- if (source < 0) {
- gf_log (this->name, GF_LOG_DEBUG, "failed to select source "
- "for %s", local->loc.path);
- goto out;
- }
+ if (old_errno == ENODATA || new_errno == ENODATA)
+ return ENODATA;
+ if (old_errno == ESTALE || new_errno == ESTALE)
+ return ESTALE;
+ if (old_errno == ENOENT || new_errno == ENOENT)
+ return ENOENT;
- gf_log (this->name, GF_LOG_DEBUG, "Source selected as %d for %s",
- source, local->loc.path);
- *read_child = source;
- ret = 0;
-out:
- return ret;
+ return new_errno;
}
-static inline gf_boolean_t
-afr_is_transaction_running (afr_local_t *local)
-{
- GF_ASSERT (local->fop == GF_FOP_LOOKUP);
- return ((local->inodelk_count > 0) || (local->entrylk_count > 0));
-}
-void
-afr_launch_self_heal (call_frame_t *frame, xlator_t *this, inode_t *inode,
- gf_boolean_t background, ia_type_t ia_type, char *reason,
- void (*gfid_sh_success_cbk) (call_frame_t *sh_frame,
- xlator_t *this),
- int (*unwind) (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- int32_t sh_failed))
+int
+afr_final_errno (afr_local_t *local, afr_private_t *priv)
{
- afr_local_t *local = NULL;
- char sh_type_str[256] = {0,};
- char *bg = "";
+ int i = 0;
+ int op_errno = 0;
+ int tmp_errno = 0;
- GF_ASSERT (frame);
- GF_ASSERT (this);
- GF_ASSERT (inode);
- GF_ASSERT (ia_type != IA_INVAL);
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].valid)
+ continue;
+ if (local->replies[i].op_ret == 0)
+ continue;
+ tmp_errno = local->replies[i].op_errno;
+ op_errno = afr_higher_errno (op_errno, tmp_errno);
+ }
- local = frame->local;
- local->self_heal.background = background;
- local->self_heal.type = ia_type;
- local->self_heal.unwind = unwind;
- local->self_heal.gfid_sh_success_cbk = gfid_sh_success_cbk;
-
- afr_self_heal_type_str_get (&local->self_heal,
- sh_type_str,
- sizeof (sh_type_str));
-
- if (background)
- bg = "background";
- gf_log (this->name, GF_LOG_INFO,
- "%s %s self-heal triggered. path: %s, reason: %s", bg,
- sh_type_str, local->loc.path, reason);
-
- afr_self_heal (frame, this, inode);
-}
-
-unsigned int
-afr_gfid_missing_count (const char *xlator_name, int32_t *success_children,
- struct iatt *bufs, unsigned int child_count,
- const char *path)
-{
- unsigned int gfid_miss_count = 0;
- int i = 0;
- struct iatt *child1 = NULL;
-
- for (i = 0; i < child_count; i++) {
- if (success_children[i] == -1)
- break;
- child1 = &bufs[success_children[i]];
- if (uuid_is_null (child1->ia_gfid)) {
- gf_log (xlator_name, GF_LOG_DEBUG, "%s: gfid is null"
- " on subvolume %d", path, success_children[i]);
- gfid_miss_count++;
- }
- }
-
- return gfid_miss_count;
+ return op_errno;
}
static int
-afr_lookup_gfid_missing_count (afr_local_t *local, xlator_t *this)
+get_pathinfo_host (char *pathinfo, char *hostname, size_t size)
{
- int32_t *success_children = NULL;
- afr_private_t *priv = NULL;
- struct iatt *bufs = NULL;
- int miss_count = 0;
+ char *start = NULL;
+ char *end = NULL;
+ int ret = -1;
+ int i = 0;
- priv = this->private;
- bufs = local->cont.lookup.bufs;
- success_children = local->cont.lookup.success_children;
+ if (!pathinfo)
+ goto out;
- miss_count = afr_gfid_missing_count (this->name, success_children,
- bufs, priv->child_count,
- local->loc.path);
- return miss_count;
-}
+ start = strchr (pathinfo, ':');
+ if (!start)
+ goto out;
+ end = strrchr (pathinfo, ':');
+ if (start == end)
+ goto out;
-gf_boolean_t
-afr_conflicting_iattrs (struct iatt *bufs, int32_t *success_children,
- unsigned int child_count, const char *path,
- const char *xlator_name)
-{
- gf_boolean_t conflicting = _gf_false;
- int i = 0;
- struct iatt *child1 = NULL;
- struct iatt *child2 = NULL;
- uuid_t *gfid = NULL;
-
- for (i = 0; i < child_count; i++) {
- if (success_children[i] == -1)
- break;
- child1 = &bufs[success_children[i]];
- if ((!gfid) && (!uuid_is_null (child1->ia_gfid)))
- gfid = &child1->ia_gfid;
-
- if (i == 0)
- continue;
-
- child2 = &bufs[success_children[i-1]];
- if (FILETYPE_DIFFERS (child1, child2)) {
- gf_log (xlator_name, GF_LOG_WARNING, "%s: filetype "
- "differs on subvolumes (%d, %d)", path,
- success_children[i-1], success_children[i]);
- conflicting = _gf_true;
- goto out;
- }
- if (!gfid || uuid_is_null (child1->ia_gfid))
- continue;
- if (uuid_compare (*gfid, child1->ia_gfid)) {
- gf_log (xlator_name, GF_LOG_WARNING, "%s: gfid differs"
- " on subvolume %d", path, success_children[i]);
- conflicting = _gf_true;
- goto out;
- }
- }
+ memset (hostname, 0, size);
+ i = 0;
+ while (++start != end)
+ hostname[i++] = *start;
+ ret = 0;
out:
- return conflicting;
+ return ret;
}
-/* afr_update_gfid_from_iatts: This function should be called only if the
- * iatts are not conflicting.
- */
-void
-afr_update_gfid_from_iatts (uuid_t uuid, struct iatt *bufs,
- int32_t *success_children, unsigned int child_count)
+int
+afr_local_pathinfo (char *pathinfo, gf_boolean_t *local)
{
- uuid_t *gfid = NULL;
- int i = 0;
- int child = 0;
+ int ret = 0;
+ char pathinfohost[1024] = {0};
+ char localhost[1024] = {0};
+ xlator_t *this = THIS;
- for (i = 0; i < child_count; i++) {
- child = success_children[i];
- if (child == -1)
- break;
- if ((!gfid) && (!uuid_is_null (bufs[child].ia_gfid))) {
- gfid = &bufs[child].ia_gfid;
- } else if (gfid && (!uuid_is_null (bufs[child].ia_gfid))) {
- if (uuid_compare (*gfid, bufs[child].ia_gfid)) {
- GF_ASSERT (0);
- goto out;
- }
- }
+ *local = _gf_false;
+ ret = get_pathinfo_host (pathinfo, pathinfohost, sizeof (pathinfohost));
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Invalid pathinfo: %s",
+ pathinfo);
+ goto out;
}
- if (gfid && (!uuid_is_null (*gfid)))
- uuid_copy (uuid, *gfid);
-out:
- return;
-}
-static gf_boolean_t
-afr_lookup_conflicting_entries (afr_local_t *local, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- gf_boolean_t conflict = _gf_false;
-
- priv = this->private;
- conflict = afr_conflicting_iattrs (local->cont.lookup.bufs,
- local->cont.lookup.success_children,
- priv->child_count, local->loc.path,
- this->name);
- return conflict;
-}
-
-gf_boolean_t
-afr_open_only_data_self_heal (char *data_self_heal)
-{
- return !strcmp (data_self_heal, "open");
-}
-
-gf_boolean_t
-afr_data_self_heal_enabled (char *data_self_heal)
-{
- gf_boolean_t enabled = _gf_false;
-
- if (gf_string2boolean (data_self_heal, &enabled) == -1) {
- enabled = !strcmp (data_self_heal, "open");
- GF_ASSERT (enabled);
+ ret = gethostname (localhost, sizeof (localhost));
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "gethostname() failed, "
+ "reason: %s", strerror (errno));
+ goto out;
}
- return enabled;
+ if (!strcmp (localhost, pathinfohost))
+ *local = _gf_true;
+out:
+ return ret;
}
-static void
-afr_lookup_set_self_heal_params (afr_local_t *local, xlator_t *this)
+static int32_t
+afr_local_discovery_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *dict,
+ dict_t *xdata)
{
- int i = 0;
- struct iatt *bufs = NULL;
- dict_t **xattr = NULL;
- afr_private_t *priv = NULL;
- int32_t child1 = -1;
- int32_t child2 = -1;
- afr_self_heal_t *sh = NULL;
- gf_boolean_t split_brain = _gf_false;
-
- priv = this->private;
- sh = &local->self_heal;
-
- split_brain = afr_is_split_brain (this, local->cont.lookup.inode);
- afr_detect_self_heal_by_lookup_status (local, this, split_brain);
-
- if (afr_lookup_gfid_missing_count (local, this))
- local->self_heal.do_gfid_self_heal = _gf_true;
-
- if (_gf_true == afr_lookup_conflicting_entries (local, this))
- local->self_heal.do_missing_entry_self_heal = _gf_true;
- else
- afr_update_gfid_from_iatts (local->self_heal.sh_gfid_req,
- local->cont.lookup.bufs,
- local->cont.lookup.success_children,
- priv->child_count);
-
- bufs = local->cont.lookup.bufs;
- for (i = 1; i < local->success_count; i++) {
- child1 = local->cont.lookup.success_children[i-1];
- child2 = local->cont.lookup.success_children[i];
- afr_detect_self_heal_by_iatt (local, this,
- &bufs[child1], &bufs[child2]);
- }
+ int ret = 0;
+ char *pathinfo = NULL;
+ gf_boolean_t is_local = _gf_false;
+ afr_private_t *priv = NULL;
+ int32_t child_index = -1;
- xattr = local->cont.lookup.xattrs;
- for (i = 0; i < local->success_count; i++) {
- child1 = local->cont.lookup.success_children[i];
- afr_lookup_set_self_heal_params_by_xattr (local, this,
- xattr[child1]);
+ if (op_ret != 0) {
+ goto out;
}
- if (afr_open_only_data_self_heal (priv->data_self_heal)
- && !split_brain)
- sh->do_data_self_heal = _gf_false;
-}
-int
-afr_self_heal_lookup_unwind (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- int32_t sh_failed)
-{
- afr_local_t *local = NULL;
- int ret = -1;
- dict_t *xattr = NULL;
-
- local = frame->local;
+ priv = this->private;
+ child_index = (int32_t)(long)cookie;
- if (op_ret == -1) {
- local->op_ret = -1;
- if (afr_error_more_important (local->op_errno, op_errno))
- local->op_errno = op_errno;
+ ret = dict_get_str (dict, GF_XATTR_PATHINFO_KEY, &pathinfo);
+ if (ret != 0) {
+ goto out;
+ }
+ ret = afr_local_pathinfo (pathinfo, &is_local);
+ if (ret) {
goto out;
- } else {
- local->op_ret = 0;
}
- afr_lookup_done_success_action (frame, this, _gf_true);
- xattr = local->cont.lookup.xattr;
- if (xattr) {
- ret = dict_set_int32 (xattr, "sh-failed", sh_failed);
- if (ret)
- gf_log (this->name, GF_LOG_ERROR, "%s: Failed to set "
- "sh-failed to %d", local->loc.path, sh_failed);
+ /*
+ * Note that one local subvolume will override another here. The only
+ * way to avoid that would be to retain extra information about whether
+ * the previous read_child is local, and it's just not worth it. Even
+ * the slowest local subvolume is far preferable to a remote one.
+ */
+ if (is_local) {
+ gf_log (this->name, GF_LOG_INFO,
+ "selecting local read_child %s",
+ priv->children[child_index]->name);
+ priv->read_child = child_index;
}
out:
- AFR_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
- local->cont.lookup.inode, &local->cont.lookup.buf,
- local->cont.lookup.xattr,
- &local->cont.lookup.postparent);
-
+ STACK_DESTROY(frame->root);
return 0;
}
-//TODO: At the moment only lookup needs this, so not doing any checks, in the
-// future we will have to do fop specific operations
-void
-afr_post_gfid_sh_success (call_frame_t *sh_frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_local_t *sh_local = NULL;
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
- int i = 0;
- struct iatt *lookup_bufs = NULL;
- struct iatt *lookup_parentbufs = NULL;
-
- sh_local = sh_frame->local;
- sh = &sh_local->self_heal;
- local = sh->orig_frame->local;
- lookup_bufs = local->cont.lookup.bufs;
- lookup_parentbufs = local->cont.lookup.postparents;
- priv = this->private;
-
- memcpy (lookup_bufs, sh->buf, priv->child_count * sizeof (*sh->buf));
- memcpy (lookup_parentbufs, sh->parentbufs,
- priv->child_count * sizeof (*sh->parentbufs));
-
- afr_reset_xattr (local->cont.lookup.xattrs, priv->child_count);
- if (local->cont.lookup.xattr) {
- dict_unref (local->cont.lookup.xattr);
- local->cont.lookup.xattr = NULL;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (sh->xattr[i])
- local->cont.lookup.xattrs[i] = dict_ref (sh->xattr[i]);
- }
-
- afr_reset_children (local->cont.lookup.success_children,
- priv->child_count);
- afr_children_copy (local->cont.lookup.success_children,
- sh->fresh_children, priv->child_count);
-}
-
static void
-afr_lookup_perform_self_heal (call_frame_t *frame, xlator_t *this,
- gf_boolean_t *sh_launched)
+afr_attempt_local_discovery (xlator_t *this, int32_t child_index)
{
- unsigned int up_count = 0;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- char *reason = NULL;
-
- GF_ASSERT (sh_launched);
- *sh_launched = _gf_false;
- priv = this->private;
- local = frame->local;
-
- up_count = afr_up_children_count (local->child_up, priv->child_count);
- if (up_count == 1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "Only 1 child up - do not attempt to detect self heal");
- goto out;
- }
+ call_frame_t *newframe = NULL;
+ loc_t tmploc = {0,};
+ afr_private_t *priv = this->private;
- afr_lookup_set_self_heal_params (local, this);
- if (afr_can_self_heal_proceed (&local->self_heal, priv)) {
- if (afr_is_transaction_running (local))
- goto out;
-
- reason = "lookup detected pending operations";
- afr_launch_self_heal (frame, this, local->cont.lookup.inode,
- _gf_true, local->cont.lookup.buf.ia_type,
- reason, afr_post_gfid_sh_success,
- afr_self_heal_lookup_unwind);
- *sh_launched = _gf_true;
+ newframe = create_frame(this,this->ctx->pool);
+ if (!newframe) {
+ return;
}
-out:
- return;
-}
-
-void
-afr_get_fresh_children (int32_t *success_children, int32_t *sources,
- int32_t *fresh_children, unsigned int child_count)
-{
- unsigned int i = 0;
- unsigned int j = 0;
-
- GF_ASSERT (success_children);
- GF_ASSERT (sources);
- GF_ASSERT (fresh_children);
- afr_reset_children (fresh_children, child_count);
- for (i = 0; i < child_count; i++) {
- if (success_children[i] == -1)
- break;
- if (afr_is_read_child (success_children, sources, child_count,
- success_children[i])) {
- fresh_children[j] = success_children[i];
- j++;
- }
- }
+ tmploc.gfid[sizeof(tmploc.gfid)-1] = 1;
+ STACK_WIND_COOKIE (newframe, afr_local_discovery_cbk,
+ (void *)(long)child_index,
+ priv->children[child_index],
+ priv->children[child_index]->fops->getxattr,
+ &tmploc, GF_XATTR_PATHINFO_KEY, NULL);
}
-static int
-afr_lookup_set_read_ctx (afr_local_t *local, xlator_t *this, int32_t read_child)
-{
- afr_private_t *priv = NULL;
-
- GF_ASSERT (read_child >= 0);
-
- priv = this->private;
- afr_get_fresh_children (local->cont.lookup.success_children,
- local->cont.lookup.sources,
- local->fresh_children, priv->child_count);
- afr_inode_set_read_ctx (this, local->cont.lookup.inode, read_child,
- local->fresh_children);
-
- return 0;
-}
int
-afr_lookup_done_success_action (call_frame_t *frame, xlator_t *this,
- gf_boolean_t fail_conflict)
+afr_lookup_selfheal_wrap (void *opaque)
{
- int32_t read_child = -1;
- int32_t ret = -1;
- afr_local_t *local = NULL;
- gf_boolean_t fresh_lookup = _gf_false;
+ call_frame_t *frame = opaque;
+ afr_local_t *local = NULL;
+ xlator_t *this = NULL;
+ inode_t *inode = NULL;
- local = frame->local;
- fresh_lookup = local->cont.lookup.fresh_lookup;
+ local = frame->local;
+ this = frame->this;
- if (local->loc.parent == NULL)
- fail_conflict = _gf_true;
+ afr_selfheal_name (frame->this, local->loc.pargfid, local->loc.name);
- if (afr_lookup_conflicting_entries (local, this)) {
- if (fail_conflict == _gf_false)
- ret = 0;
- goto out;
- }
+ afr_replies_wipe (local, this->private);
- ret = afr_lookup_select_read_child (local, this, &read_child);
- if (!afr_is_transaction_running (local) || fresh_lookup) {
- if (read_child < 0)
- goto out;
+ inode = afr_selfheal_unlocked_lookup_on (frame, local->loc.parent,
+ local->loc.name, local->replies,
+ local->child_up);
+ if (inode)
+ inode_unref (inode);
+ afr_lookup_done (frame, this);
- ret = afr_lookup_set_read_ctx (local, this, read_child);
- if (ret)
- goto out;
- }
+ return 0;
+}
- ret = afr_lookup_build_response_params (local, this);
- if (ret)
- goto out;
- afr_update_loc_gfids (&local->loc,
- &local->cont.lookup.buf,
- &local->cont.lookup.postparent);
- ret = 0;
-out:
- if (ret) {
- local->op_ret = -1;
- local->op_errno = EIO;
- }
- return ret;
+int
+afr_lookup_entry_heal (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ call_frame_t *heal = NULL;
+ int i = 0, first = -1;
+ gf_boolean_t need_heal = _gf_false;
+ struct afr_reply *replies = NULL;
+ int ret = 0;
+
+ local = frame->local;
+ replies = local->replies;
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid)
+ continue;
+
+ if (first == -1) {
+ first = i;
+ continue;
+ }
+
+ if (replies[i].op_ret != replies[first].op_ret) {
+ need_heal = _gf_true;
+ break;
+ }
+
+ if (uuid_compare (replies[i].poststat.ia_gfid,
+ replies[first].poststat.ia_gfid)) {
+ need_heal = _gf_true;
+ break;
+ }
+ }
+
+ if (need_heal) {
+ heal = copy_frame (frame);
+ if (heal)
+ heal->root->pid = -1;
+ ret = synctask_new (this->ctx->env, afr_lookup_selfheal_wrap,
+ afr_refresh_selfheal_done, heal, frame);
+ if (ret)
+ goto lookup_done;
+ } else {
+ lookup_done:
+ afr_lookup_done (frame, this);
+ }
+
+ return ret;
}
+
int
-afr_lookup_get_latest_subvol (afr_local_t *local, xlator_t *this)
+afr_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, inode_t *inode, struct iatt *buf,
+ dict_t *xdata, struct iatt *postparent)
{
- afr_private_t *priv = NULL;
- int32_t *success_children = NULL;
- struct iatt *bufs = NULL;
- int i = 0;
- int child = 0;
- int lsubvol = -1;
+ afr_local_t * local = NULL;
+ int call_count = -1;
+ int child_index = -1;
- priv = this->private;
- success_children = local->cont.lookup.success_children;
- bufs = local->cont.lookup.bufs;
- for (i = 0; i < priv->child_count; i++) {
- child = success_children[i];
- if (child == -1)
- break;
- if (uuid_is_null (bufs[child].ia_gfid))
- continue;
- if (lsubvol < 0) {
- lsubvol = child;
- } else if (bufs[lsubvol].ia_ctime < bufs[child].ia_ctime) {
- lsubvol = child;
- } else if ((bufs[lsubvol].ia_ctime == bufs[child].ia_ctime) &&
- (bufs[lsubvol].ia_ctime_nsec < bufs[child].ia_ctime_nsec)) {
- lsubvol = child;
- }
- }
- return lsubvol;
-}
+ child_index = (long) cookie;
-void
-afr_lookup_mark_other_entries_stale (afr_local_t *local, xlator_t *this,
- int subvol)
-{
- afr_private_t *priv = NULL;
- int32_t *success_children = NULL;
- struct iatt *bufs = NULL;
- int i = 0;
- int child = 0;
+ local = frame->local;
- priv = this->private;
- success_children = local->cont.lookup.success_children;
- bufs = local->cont.lookup.bufs;
- memcpy (local->fresh_children, success_children,
- sizeof (*success_children) * priv->child_count);
- for (i = 0; i < priv->child_count; i++) {
- child = local->fresh_children[i];
- if (child == -1)
- break;
- if (child == subvol)
- continue;
- if (uuid_is_null (bufs[child].ia_gfid) &&
- (bufs[child].ia_type == bufs[subvol].ia_type))
- continue;
- afr_children_rm_child (success_children, child,
- priv->child_count);
- local->success_count--;
+ local->replies[child_index].valid = 1;
+ local->replies[child_index].op_ret = op_ret;
+ local->replies[child_index].op_errno = op_errno;
+ if (op_ret != -1) {
+ local->replies[child_index].poststat = *buf;
+ local->replies[child_index].postparent = *postparent;
+ if (xdata)
+ local->replies[child_index].xdata = dict_ref (xdata);
+ }
+
+ call_count = afr_frame_return (frame);
+ if (call_count == 0) {
+ afr_lookup_entry_heal (frame, this);
}
- afr_reset_children (local->fresh_children, priv->child_count);
+
+ return 0;
}
-void
-afr_succeed_lookup_on_latest_iatt (afr_local_t *local, xlator_t *this)
-{
- int lsubvol = 0;
- if (!afr_lookup_conflicting_entries (local, this))
- goto out;
-
- lsubvol = afr_lookup_get_latest_subvol (local, this);
- if (lsubvol < 0)
- goto out;
- afr_lookup_mark_other_entries_stale (local, this, lsubvol);
-out:
- return;
-}
static void
-afr_lookup_done (call_frame_t *frame, xlator_t *this)
+afr_discover_done (call_frame_t *frame, xlator_t *this)
{
- int unwind = 1;
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
- gf_boolean_t sh_launched = _gf_false;
- gf_boolean_t fail_conflict = _gf_false;
- int gfid_miss_count = 0;
- int enotconn_count = 0;
- int up_children_count = 0;
+ int i = -1;
+ int op_errno = 0;
+ int read_subvol = 0;
priv = this->private;
local = frame->local;
- if (local->op_ret < 0)
- goto unwind;
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].valid)
+ continue;
+ if (local->replies[i].op_ret == 0)
+ local->op_ret = 0;
+ }
- if (local->cont.lookup.parent_entrylk && local->success_count > 1)
- afr_succeed_lookup_on_latest_iatt (local, this);
-
- gfid_miss_count = afr_lookup_gfid_missing_count (local, this);
- up_children_count = afr_up_children_count (local->child_up,
- priv->child_count);
- enotconn_count = priv->child_count - up_children_count;
- if ((gfid_miss_count == local->success_count) &&
- (enotconn_count > 0)) {
- local->op_ret = -1;
- local->op_errno = EIO;
- gf_log (this->name, GF_LOG_ERROR, "Failing lookup for %s, "
- "LOOKUP on a file without gfid is not allowed when "
- "some of the children are down", local->loc.path);
- goto unwind;
- }
+ op_errno = afr_final_errno (frame->local, this->private);
- if ((gfid_miss_count == local->success_count) &&
- uuid_is_null (local->cont.lookup.gfid_req)) {
- local->op_ret = -1;
- local->op_errno = ENODATA;
- gf_log (this->name, GF_LOG_ERROR, "%s: No gfid present",
- local->loc.path);
+ if (local->op_ret < 0) {
+ local->op_errno = op_errno;
+ local->op_ret = -1;
goto unwind;
- }
-
- if (gfid_miss_count && uuid_is_null (local->cont.lookup.gfid_req))
- fail_conflict = _gf_true;
- ret = afr_lookup_done_success_action (frame, this, fail_conflict);
- if (ret)
- goto unwind;
- uuid_copy (local->self_heal.sh_gfid_req, local->cont.lookup.gfid_req);
-
- afr_lookup_perform_self_heal (frame, this, &sh_launched);
- if (sh_launched) {
- unwind = 0;
- goto unwind;
- }
-
- unwind:
- if (unwind) {
- AFR_STACK_UNWIND (lookup, frame, local->op_ret,
- local->op_errno, local->cont.lookup.inode,
- &local->cont.lookup.buf,
- local->cont.lookup.xattr,
- &local->cont.lookup.postparent);
- }
-}
-
-/*
- * During a lookup, some errors are more "important" than
- * others in that they must be given higher priority while
- * returning to the user.
- *
- * The hierarchy is ESTALE > ENOENT > others
- *
- */
-
-gf_boolean_t
-afr_error_more_important (int32_t old_errno, int32_t new_errno)
-{
- gf_boolean_t ret = _gf_true;
-
- /* Nothing should ever overwrite ESTALE */
- if (old_errno == ESTALE)
- ret = _gf_false;
-
- /* Nothing should overwrite ENOENT, except ESTALE/EIO*/
- else if ((old_errno == ENOENT) && (new_errno != ESTALE)
- && (new_errno != EIO))
- ret = _gf_false;
-
- return ret;
-}
-
-int32_t
-afr_resultant_errno_get (int32_t *children,
- int *child_errno, unsigned int child_count)
-{
- int i = 0;
- int32_t op_errno = 0;
- int child = 0;
+ }
- for (i = 0; i < child_count; i++) {
- if (children) {
- child = children[i];
- if (child == -1)
- break;
- } else {
- child = i;
- }
- if (afr_error_more_important (op_errno, child_errno[child]))
- op_errno = child_errno[child];
- }
- return op_errno;
-}
+ afr_replies_interpret (frame, this, local->inode);
-static void
-afr_lookup_handle_error (afr_local_t *local, int32_t op_ret, int32_t op_errno)
-{
- GF_ASSERT (local);
- if (op_errno == ENOENT)
- local->enoent_count++;
+ read_subvol = afr_data_subvol_get (local->inode, this, 0, 0);
+ if (read_subvol == -1) {
+ gf_log (this->name, GF_LOG_WARNING, "no read subvols for %s",
+ local->loc.path);
- if (afr_error_more_important (local->op_errno, op_errno))
- local->op_errno = op_errno;
-
- if (local->op_errno == ESTALE) {
- local->op_ret = -1;
- }
-}
-
-static void
-afr_set_root_inode_on_first_lookup (afr_local_t *local, xlator_t *this,
- inode_t *inode)
-{
- afr_private_t *priv = NULL;
- GF_ASSERT (inode);
-
- if (!__is_root_gfid (inode->gfid))
- goto out;
- if (!afr_is_fresh_lookup (&local->loc, this))
- goto out;
- priv = this->private;
- if ((priv->first_lookup)) {
- gf_log (this->name, GF_LOG_INFO, "added root inode");
- priv->root_inode = inode_ref (inode);
- priv->first_lookup = 0;
- }
-out:
- return;
-}
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].valid ||
+ local->replies[i].op_ret == -1)
+ continue;
+ read_subvol = i;
+ break;
+ }
+ }
-static void
-afr_lookup_cache_args (afr_local_t *local, int child_index, dict_t *xattr,
- struct iatt *buf, struct iatt *postparent)
-{
- GF_ASSERT (child_index >= 0);
- local->cont.lookup.xattrs[child_index] = dict_ref (xattr);
- local->cont.lookup.postparents[child_index] = *postparent;
- local->cont.lookup.bufs[child_index] = *buf;
-}
+unwind:
+ if (read_subvol == -1)
+ read_subvol = 0;
-static void
-afr_lookup_handle_first_success (afr_local_t *local, xlator_t *this,
- inode_t *inode, struct iatt *buf)
-{
- local->cont.lookup.inode = inode_ref (inode);
- local->cont.lookup.buf = *buf;
- afr_set_root_inode_on_first_lookup (local, this, inode);
+ AFR_STACK_UNWIND (lookup, frame, local->op_ret, local->op_errno,
+ local->inode, &local->replies[read_subvol].poststat,
+ local->replies[read_subvol].xdata,
+ &local->replies[read_subvol].postparent);
}
-static void
-afr_lookup_handle_success (afr_local_t *local, xlator_t *this, int32_t child_index,
- int32_t op_ret, int32_t op_errno, inode_t *inode,
- struct iatt *buf, dict_t *xattr,
- struct iatt *postparent)
-{
- if (local->success_count == 0) {
- if (local->op_errno != ESTALE) {
- local->op_ret = op_ret;
- local->op_errno = 0;
- }
- afr_lookup_handle_first_success (local, this, inode, buf);
- }
- afr_lookup_update_lk_counts (local, this,
- child_index, xattr);
-
- afr_lookup_cache_args (local, child_index, xattr,
- buf, postparent);
- local->cont.lookup.success_children[local->success_count] = child_index;
- local->success_count++;
-}
int
-afr_lookup_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *buf, dict_t *xattr,
- struct iatt *postparent)
+afr_discover_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, inode_t *inode, struct iatt *buf,
+ dict_t *xdata, struct iatt *postparent)
{
afr_local_t * local = NULL;
int call_count = -1;
int child_index = -1;
- child_index = (long) cookie;
+ child_index = (long) cookie;
- LOCK (&frame->lock);
- {
- local = frame->local;
+ local = frame->local;
- if (op_ret == -1) {
- afr_lookup_handle_error (local, op_ret, op_errno);
- goto unlock;
- }
- afr_lookup_handle_success (local, this, child_index, op_ret,
- op_errno, inode, buf, xattr,
- postparent);
+ local->replies[child_index].valid = 1;
+ local->replies[child_index].op_ret = op_ret;
+ local->replies[child_index].op_errno = op_errno;
+ if (op_ret != -1) {
+ local->replies[child_index].poststat = *buf;
+ local->replies[child_index].postparent = *postparent;
+ if (xdata)
+ local->replies[child_index].xdata = dict_ref (xdata);
+ }
- }
-unlock:
- UNLOCK (&frame->lock);
+ if (local->do_discovery && (op_ret == 0))
+ afr_attempt_local_discovery (this, child_index);
call_count = afr_frame_return (frame);
if (call_count == 0) {
- afr_lookup_done (frame, this);
+ afr_discover_done (frame, this);
}
- return 0;
+ return 0;
}
+
int
-afr_lookup_cont_init (afr_local_t *local, unsigned int child_count)
+afr_discover_do (call_frame_t *frame, xlator_t *this, int err)
{
- int ret = -ENOMEM;
- struct iatt *iatts = NULL;
- int32_t *success_children = NULL;
- int32_t *sources = NULL;
-
- GF_ASSERT (local);
- local->cont.lookup.xattrs = GF_CALLOC (child_count,
- sizeof (*local->cont.lookup.xattr),
- gf_afr_mt_dict_t);
- if (NULL == local->cont.lookup.xattrs)
- goto out;
+ int ret = 0;
+ int i = 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = 0;
- iatts = GF_CALLOC (child_count, sizeof (*iatts), gf_afr_mt_iatt);
- if (NULL == iatts)
- goto out;
- local->cont.lookup.postparents = iatts;
+ local = frame->local;
+ priv = this->private;
- iatts = GF_CALLOC (child_count, sizeof (*iatts), gf_afr_mt_iatt);
- if (NULL == iatts)
- goto out;
- local->cont.lookup.bufs = iatts;
+ if (err) {
+ local->op_errno = -err;
+ ret = -1;
+ goto out;
+ }
- success_children = afr_children_create (child_count);
- if (NULL == success_children)
- goto out;
- local->cont.lookup.success_children = success_children;
+ call_count = local->call_count = AFR_COUNT (local->child_up,
+ priv->child_count);
- local->fresh_children = afr_children_create (child_count);
- if (NULL == local->fresh_children)
+ ret = afr_lookup_xattr_req_prepare (local, this, local->xattr_req,
+ &local->loc);
+ if (ret) {
+ local->op_errno = -ret;
+ ret = -1;
goto out;
+ }
- sources = GF_CALLOC (sizeof (*sources), child_count, gf_afr_mt_int32_t);
- if (NULL == sources)
- goto out;
- local->cont.lookup.sources = sources;
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_discover_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->lookup,
+ &local->loc, local->xattr_req);
+ if (!--call_count)
+ break;
+ }
+ }
- ret = 0;
+ return 0;
out:
- return ret;
+ AFR_STACK_UNWIND (lookup, frame, -1, local->op_errno, 0, 0, 0, 0);
+ return 0;
}
+
int
-afr_lookup (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xattr_req)
+afr_discover (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- void *gfid_req = NULL;
- int ret = -1;
- int i = 0;
- int call_count = 0;
- uint64_t ctx = 0;
- int32_t op_errno = 0;
+ int op_errno = ENOMEM;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int event = 0;
- priv = this->private;
+ priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (local, out);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- local->op_ret = -1;
+ if (!local->call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
- frame->local = local;
- local->fop = GF_FOP_LOOKUP;
+ if (__is_root_gfid (loc->inode->gfid)) {
+ if (!this->itable)
+ this->itable = loc->inode->table;
+ if (!priv->root_inode)
+ priv->root_inode = inode_ref (loc->inode);
+
+ if (priv->choose_local && !priv->did_discovery) {
+ /* Logic to detect which subvolumes of AFR are
+ local, in order to prefer them for reads
+ */
+ local->do_discovery = _gf_true;
+ priv->did_discovery = _gf_true;
+ }
+ }
+
+ local->op = GF_FOP_LOOKUP;
loc_copy (&local->loc, loc);
- ret = loc_path (&local->loc, NULL);
- if (ret < 0) {
- op_errno = EINVAL;
- goto out;
- }
- if (!strcmp (local->loc.path, "/" GF_REPLICATE_TRASH_DIR)) {
- op_errno = ENOENT;
- goto out;
- }
+ local->inode = inode_ref (loc->inode);
- ret = inode_ctx_get (local->loc.inode, this, &ctx);
- if (ret == 0) {
- /* lookup is a revalidate */
+ if (xattr_req)
+ /* If xattr_req was null, afr_lookup_xattr_req_prepare() will
+ allocate one for us */
+ local->xattr_req = dict_ref (xattr_req);
- local->read_child_index = afr_inode_get_read_ctx (this,
- local->loc.inode,
- NULL);
- } else {
- LOCK (&priv->read_child_lock);
- {
- local->read_child_index = (++priv->read_child_rr)
- % (priv->child_count);
- }
- UNLOCK (&priv->read_child_lock);
- local->cont.lookup.fresh_lookup = _gf_true;
- }
+ if (uuid_is_null (loc->inode->gfid)) {
+ afr_discover_do (frame, this, 0);
+ return 0;
+ }
- local->child_up = memdup (priv->child_up,
- sizeof (*local->child_up) * priv->child_count);
- if (NULL == local->child_up) {
- op_errno = ENOMEM;
- goto out;
- }
+ afr_read_subvol_get (loc->inode, this, NULL, &event,
+ AFR_DATA_TRANSACTION);
- ret = afr_lookup_cont_init (local, priv->child_count);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ if (event != local->event_generation)
+ afr_inode_refresh (frame, this, loc->inode, afr_discover_do);
+ else
+ afr_discover_do (frame, this, 0);
- local->call_count = afr_up_children_count (local->child_up,
- priv->child_count);
- call_count = local->call_count;
- if (local->call_count == 0) {
- ret = -1;
- op_errno = ENOTCONN;
- goto out;
- }
+ return 0;
+out:
+ AFR_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+ return 0;
+}
+
+
+int
+afr_lookup_do (call_frame_t *frame, xlator_t *this, int err)
+{
+ int ret = 0;
+ int i = 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = 0;
- /* By default assume ENOTCONN. On success it will be set to 0. */
- local->op_errno = ENOTCONN;
+ local = frame->local;
+ priv = this->private;
- local->call_count = afr_up_children_count (local->child_up,
- priv->child_count);
- ret = afr_lookup_xattr_req_prepare (local, this, xattr_req, &local->loc,
- &gfid_req);
+ if (err < 0) {
+ local->op_errno = -err;
+ ret = -1;
+ goto out;
+ }
+
+ call_count = local->call_count = AFR_COUNT (local->child_up,
+ priv->child_count);
+
+ ret = afr_lookup_xattr_req_prepare (local, this, local->xattr_req,
+ &local->loc);
if (ret) {
local->op_errno = -ret;
+ ret = -1;
goto out;
}
- afr_lookup_save_gfid (local->cont.lookup.gfid_req, gfid_req,
- &local->loc);
- local->fop = GF_FOP_LOOKUP;
+
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
STACK_WIND_COOKIE (frame, afr_lookup_cbk,
@@ -2188,12 +1778,98 @@ afr_lookup (call_frame_t *frame, xlator_t *this,
break;
}
}
+ return 0;
+out:
+ AFR_STACK_UNWIND (lookup, frame, -1, local->op_errno, 0, 0, 0, 0);
+ return 0;
+}
- ret = 0;
+/*
+ * afr_lookup()
+ *
+ * The goal here is to figure out what the element getting looked up is.
+ * i.e what is the GFID, inode type and a conservative estimate of the
+ * inode attributes are.
+ *
+ * As we lookup, operations may be underway on the entry name and the
+ * inode. In lookup() we are primarily concerned only with the entry
+ * operations. If the entry is getting unlinked or renamed, we detect
+ * what operation is underway by querying for on-going transactions and
+ * pending self-healing on the entry through xdata.
+ *
+ * If the entry is a file/dir, it may need self-heal and/or in a
+ * split-brain condition. Lookup is not the place to worry about these
+ * conditions. Outcast marking will naturally handle them in the read
+ * paths.
+ *
+ * Here is a brief goal of what we are trying to achieve:
+ *
+ * - LOOKUP on all subvolumes concurrently, querying on-going transaction
+ * and pending self-heal info from the servers.
+ *
+ * - If all servers reply the same inode type and GFID, the overall call
+ * MUST be a success.
+ *
+ * - If inode types or GFIDs mismatch, and there IS either an on-going
+ * transaction or pending self-heal, inspect what the nature of the
+ * transaction or pending heal is, and select the appropriate subvolume's
+ * reply as the winner.
+ *
+ * - If inode types or GFIDs mismatch, and there are no on-going transactions
+ * or pending self-heal on the entry name on any of the servers, fail the
+ * lookup with EIO. Something has gone wrong beyond reasonable action.
+ */
+
+int
+afr_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
+{
+ afr_local_t *local = NULL;
+ int32_t op_errno = 0;
+ int event = 0;
+
+ if (!loc->parent) {
+ afr_discover (frame, this, loc, xattr_req);
+ return 0;
+ }
+
+ if (__is_root_gfid (loc->parent->gfid)) {
+ if (!strcmp (loc->name, GF_REPLICATE_TRASH_DIR)) {
+ op_errno = EPERM;
+ goto out;
+ }
+ }
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ if (!local->call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
+
+ local->op = GF_FOP_LOOKUP;
+
+ loc_copy (&local->loc, loc);
+
+ local->inode = inode_ref (loc->inode);
+
+ if (xattr_req)
+ /* If xattr_req was null, afr_lookup_xattr_req_prepare() will
+ allocate one for us */
+ local->xattr_req = dict_ref (xattr_req);
+
+ afr_read_subvol_get (loc->parent, this, NULL, &event,
+ AFR_DATA_TRANSACTION);
+
+ if (event != local->event_generation)
+ afr_inode_refresh (frame, this, loc->parent, afr_lookup_do);
+ else
+ afr_lookup_do (frame, this, 0);
+
+ return 0;
out:
- if (ret)
- AFR_STACK_UNWIND (lookup, frame, -1, op_errno,
- NULL, NULL, NULL, NULL);
+ AFR_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
return 0;
}
@@ -2201,6 +1877,46 @@ out:
/* {{{ open */
+afr_fd_ctx_t *
+__afr_fd_ctx_get (fd_t *fd, xlator_t *this)
+{
+ uint64_t ctx = 0;
+ int ret = 0;
+ afr_fd_ctx_t *fd_ctx = NULL;
+
+ ret = __fd_ctx_get (fd, this, &ctx);
+
+ if (ret < 0) {
+ ret = __afr_fd_ctx_set (this, fd);
+ if (ret < 0)
+ goto out;
+
+ ret = __fd_ctx_get (fd, this, &ctx);
+ if (ret < 0)
+ goto out;
+ }
+
+ fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+out:
+ return fd_ctx;
+}
+
+
+afr_fd_ctx_t *
+afr_fd_ctx_get (fd_t *fd, xlator_t *this)
+{
+ afr_fd_ctx_t *fd_ctx = NULL;
+
+ LOCK(&fd->lock);
+ {
+ fd_ctx = __afr_fd_ctx_get (fd, this);
+ }
+ UNLOCK(&fd->lock);
+
+ return fd_ctx;
+}
+
+
int
__afr_fd_ctx_set (xlator_t *this, fd_t *fd)
{
@@ -2208,6 +1924,7 @@ __afr_fd_ctx_set (xlator_t *this, fd_t *fd)
int ret = -1;
uint64_t ctx = 0;
afr_fd_ctx_t * fd_ctx = NULL;
+ int i = 0;
VALIDATE_OR_GOTO (this->private, out);
VALIDATE_OR_GOTO (fd, out);
@@ -2226,21 +1943,15 @@ __afr_fd_ctx_set (xlator_t *this, fd_t *fd)
goto out;
}
- fd_ctx->pre_op_done = GF_CALLOC (sizeof (*fd_ctx->pre_op_done),
- priv->child_count,
- gf_afr_mt_char);
- if (!fd_ctx->pre_op_done) {
- ret = -ENOMEM;
- goto out;
- }
-
- fd_ctx->pre_op_piggyback = GF_CALLOC (sizeof (*fd_ctx->pre_op_piggyback),
- priv->child_count,
- gf_afr_mt_char);
- if (!fd_ctx->pre_op_piggyback) {
- ret = -ENOMEM;
- goto out;
- }
+ for (i = 0; i < AFR_NUM_CHANGE_LOGS; i++) {
+ fd_ctx->pre_op_done[i] = GF_CALLOC (sizeof (*fd_ctx->pre_op_done[i]),
+ priv->child_count,
+ gf_afr_mt_int32_t);
+ if (!fd_ctx->pre_op_done[i]) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ }
fd_ctx->opened_on = GF_CALLOC (sizeof (*fd_ctx->opened_on),
priv->child_count,
@@ -2250,6 +1961,13 @@ __afr_fd_ctx_set (xlator_t *this, fd_t *fd)
goto out;
}
+ for (i = 0; i < priv->child_count; i++) {
+ if (fd_is_anonymous (fd))
+ fd_ctx->opened_on[i] = AFR_FD_OPENED;
+ else
+ fd_ctx->opened_on[i] = AFR_FD_NOT_OPENED;
+ }
+
fd_ctx->lock_piggyback = GF_CALLOC (sizeof (*fd_ctx->lock_piggyback),
priv->child_count,
gf_afr_mt_char);
@@ -2266,19 +1984,9 @@ __afr_fd_ctx_set (xlator_t *this, fd_t *fd)
goto out;
}
- fd_ctx->up_count = priv->up_count;
- fd_ctx->down_count = priv->down_count;
+ pthread_mutex_init (&fd_ctx->delay_lock, NULL);
- fd_ctx->locked_on = GF_CALLOC (sizeof (*fd_ctx->locked_on),
- priv->child_count,
- gf_afr_mt_char);
- if (!fd_ctx->locked_on) {
- ret = -ENOMEM;
- goto out;
- }
-
- INIT_LIST_HEAD (&fd_ctx->paused_calls);
- INIT_LIST_HEAD (&fd_ctx->entries);
+ INIT_LIST_HEAD (&fd_ctx->eager_locked);
ret = __fd_ctx_set (fd, this, (uint64_t)(long) fd_ctx);
if (ret)
@@ -2306,186 +2014,90 @@ afr_fd_ctx_set (xlator_t *this, fd_t *fd)
/* {{{ flush */
int
-afr_flush_unwind (call_frame_t *frame, xlator_t *this)
+afr_flush_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_local_t * local = NULL;
- call_frame_t *main_frame = NULL;
-
- local = frame->local;
-
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- AFR_STACK_UNWIND (flush, main_frame,
- local->op_ret, local->op_errno,
- NULL);
- }
-
- return 0;
-}
-
-
-int
-afr_flush_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xdata)
-{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int call_count = -1;
- int child_index = (long) cookie;
- int need_unwind = 0;
+ afr_local_t *local = NULL;
+ int call_count = -1;
local = frame->local;
- priv = this->private;
LOCK (&frame->lock);
{
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- }
- local->success_count++;
-
- if (local->success_count == priv->wait_count) {
- need_unwind = 1;
- }
- }
-
- local->op_errno = op_errno;
+ local->op_ret = op_ret;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ } else {
+ local->op_errno = op_errno;
+ }
}
UNLOCK (&frame->lock);
- if (need_unwind)
- afr_flush_unwind (frame, this);
+ call_count = afr_frame_return (frame);
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
+ if (call_count == 0)
+ AFR_STACK_UNWIND (flush, frame, local->op_ret,
+ local->op_errno, local->xdata_rsp);
return 0;
}
-
-int
-afr_flush_wind (call_frame_t *frame, xlator_t *this)
+static int
+afr_flush_wrapper (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int i = 0;
- int call_count = -1;
+ int i = 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = -1;
- local = frame->local;
priv = this->private;
-
- call_count = afr_up_children_count (local->child_up, priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
+ local = frame->local;
+ call_count = local->call_count;
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
- STACK_WIND_COOKIE (frame, afr_flush_wind_cbk,
+ STACK_WIND_COOKIE (frame, afr_flush_cbk,
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->flush,
- local->fd, NULL);
-
+ local->fd, xdata);
if (!--call_count)
break;
+
}
}
return 0;
}
-
-int
-afr_flush_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-
int
afr_flush (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
{
- afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- call_frame_t *transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
+ call_stub_t *stub = NULL;
+ int op_errno = ENOMEM;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- priv = this->private;
-
- transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
- goto out;
- }
+ if (!local->call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
+ local->fd = fd_ref(fd);
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
+ stub = fop_flush_stub (frame, afr_flush_wrapper, fd, xdata);
+ if (!stub)
goto out;
- local->op = GF_FOP_FLUSH;
-
- local->transaction.fop = afr_flush_wind;
- local->transaction.done = afr_flush_done;
- local->transaction.unwind = afr_flush_unwind;
-
- local->fd = fd_ref (fd);
-
- local->transaction.main_frame = frame;
- local->transaction.start = 0;
- local->transaction.len = 0;
+ afr_delayed_changelog_wake_resume (this, fd, stub);
- ret = afr_open_fd_fix (transaction_frame, this, _gf_false);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
- afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
-
-
- ret = 0;
+ return 0;
out:
- if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
-
- AFR_STACK_UNWIND (flush, frame, -1, op_errno, NULL);
- }
-
+ AFR_STACK_UNWIND (flush, frame, -1, op_errno, NULL);
return 0;
}
@@ -2498,8 +2110,7 @@ afr_cleanup_fd_ctx (xlator_t *this, fd_t *fd)
uint64_t ctx = 0;
afr_fd_ctx_t *fd_ctx = NULL;
int ret = 0;
- afr_fd_paused_call_t *paused_call = NULL;
- afr_fd_paused_call_t *tmp = NULL;
+ int i = 0;
ret = fd_ctx_get (fd, this, &ctx);
if (ret < 0)
@@ -2508,28 +2119,22 @@ afr_cleanup_fd_ctx (xlator_t *this, fd_t *fd)
fd_ctx = (afr_fd_ctx_t *)(long) ctx;
if (fd_ctx) {
- if (fd_ctx->pre_op_done)
- GF_FREE (fd_ctx->pre_op_done);
+ //no need to take any locks
+ if (!list_empty (&fd_ctx->eager_locked))
+ gf_log (this->name, GF_LOG_WARNING, "%s: Stale "
+ "Eager-lock stubs found",
+ uuid_utoa (fd->inode->gfid));
- if (fd_ctx->opened_on)
- GF_FREE (fd_ctx->opened_on);
+ for (i = 0; i < AFR_NUM_CHANGE_LOGS; i++)
+ GF_FREE (fd_ctx->pre_op_done[i]);
- if (fd_ctx->locked_on)
- GF_FREE (fd_ctx->locked_on);
+ GF_FREE (fd_ctx->opened_on);
- if (fd_ctx->pre_op_piggyback)
- GF_FREE (fd_ctx->pre_op_piggyback);
- list_for_each_entry_safe (paused_call, tmp, &fd_ctx->paused_calls,
- call_list) {
- list_del_init (&paused_call->call_list);
- GF_FREE (paused_call);
- }
+ GF_FREE (fd_ctx->lock_piggyback);
- if (fd_ctx->lock_piggyback)
- GF_FREE (fd_ctx->lock_piggyback);
+ GF_FREE (fd_ctx->lock_acquired);
- if (fd_ctx->lock_acquired)
- GF_FREE (fd_ctx->lock_acquired);
+ pthread_mutex_destroy (&fd_ctx->delay_lock);
GF_FREE (fd_ctx);
}
@@ -2542,24 +2147,8 @@ out:
int
afr_release (xlator_t *this, fd_t *fd)
{
- afr_locked_fd_t *locked_fd = NULL;
- afr_locked_fd_t *tmp = NULL;
- afr_private_t *priv = NULL;
-
- priv = this->private;
-
afr_cleanup_fd_ctx (this, fd);
- list_for_each_entry_safe (locked_fd, tmp, &priv->saved_fds,
- list) {
-
- if (locked_fd->fd == fd) {
- list_del_init (&locked_fd->list);
- GF_FREE (locked_fd);
- }
-
- }
-
return 0;
}
@@ -2567,6 +2156,16 @@ afr_release (xlator_t *this, fd_t *fd)
/* {{{ fsync */
int
+afr_fsync_unwind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ AFR_STACK_UNWIND (fsync, frame, op_ret, op_errno, prebuf, postbuf,
+ xdata);
+ return 0;
+}
+
+int
afr_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
struct iatt *postbuf, dict_t *xdata)
@@ -2574,45 +2173,70 @@ afr_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
afr_local_t *local = NULL;
int call_count = -1;
int child_index = (long) cookie;
- int read_child = 0;
+ int read_subvol = 0;
+ call_stub_t *stub = NULL;
local = frame->local;
- read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
+ read_subvol = afr_data_subvol_get (local->inode, this, 0, 0);
LOCK (&frame->lock);
{
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
-
if (op_ret == 0) {
- local->op_ret = 0;
+ if (local->op_ret == -1) {
+ local->op_ret = 0;
- if (local->success_count == 0) {
- local->cont.fsync.prebuf = *prebuf;
- local->cont.fsync.postbuf = *postbuf;
- }
+ local->cont.inode_wfop.prebuf = *prebuf;
+ local->cont.inode_wfop.postbuf = *postbuf;
- if (child_index == read_child) {
- local->cont.fsync.prebuf = *prebuf;
- local->cont.fsync.postbuf = *postbuf;
+ if (xdata)
+ local->xdata_rsp = dict_ref (xdata);
}
- local->success_count++;
- }
-
- local->op_errno = op_errno;
+ if (child_index == read_subvol) {
+ local->cont.inode_wfop.prebuf = *prebuf;
+ local->cont.inode_wfop.postbuf = *postbuf;
+ if (xdata) {
+ if (local->xdata_rsp)
+ dict_unref (local->xdata_rsp);
+ local->xdata_rsp = dict_ref (xdata);
+ }
+ }
+ } else {
+ local->op_errno = op_errno;
+ }
}
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0) {
- AFR_STACK_UNWIND (fsync, frame, local->op_ret, local->op_errno,
- &local->cont.fsync.prebuf,
- &local->cont.fsync.postbuf,
- NULL);
+ /* Make a stub out of the frame, and register it
+ with the waking up post-op. When the call-stub resumes,
+ we are guaranteed that there was no post-op pending
+ (i.e changelogs were unset in the server). This is an
+ essential "guarantee", that fsync() returns only after
+ completely finishing EVERYTHING, including the delayed
+ post-op. This guarantee is expected by FUSE graph switching
+ for example.
+ */
+ stub = fop_fsync_cbk_stub (frame, afr_fsync_unwind_cbk,
+ local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf,
+ local->xdata_rsp);
+ if (!stub) {
+ AFR_STACK_UNWIND (fsync, frame, -1, ENOMEM, 0, 0, 0);
+ return 0;
+ }
+
+ /* If no new unstable writes happened between the
+ time we cleared the unstable write witness flag in afr_fsync
+ and now, calling afr_delayed_changelog_wake_up() should
+ wake up and skip over the fsync phase and go straight to
+ afr_changelog_post_op_now()
+ */
+ afr_delayed_changelog_wake_resume (this, local->fd, stub);
}
return 0;
@@ -2620,32 +2244,34 @@ afr_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int
-afr_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd,
- int32_t datasync, dict_t *xdata)
+afr_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync,
+ dict_t *xdata)
{
- afr_private_t *priv = NULL;
+ afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
- int32_t op_errno = 0;
+ int32_t op_errno = ENOMEM;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ priv = this->private;
- priv = this->private;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local->fd = fd_ref (fd);
- call_count = local->call_count;
+ if (afr_fd_has_witnessed_unstable_write (this, fd)) {
+ /* don't care. we only wanted to CLEAR the bit */
+ }
- local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -2659,10 +2285,10 @@ afr_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL);
+ AFR_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL);
+
return 0;
}
@@ -2670,10 +2296,9 @@ out:
/* {{{ fsync */
-int32_t
-afr_fsyncdir_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- dict_t *xdata)
+int
+afr_fsyncdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
afr_local_t *local = NULL;
int call_count = -1;
@@ -2682,10 +2307,13 @@ afr_fsyncdir_cbk (call_frame_t *frame, void *cookie,
LOCK (&frame->lock);
{
- if (op_ret == 0)
+ if (op_ret == 0) {
local->op_ret = 0;
-
- local->op_errno = op_errno;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ } else {
+ local->op_errno = op_errno;
+ }
}
UNLOCK (&frame->lock);
@@ -2693,37 +2321,33 @@ afr_fsyncdir_cbk (call_frame_t *frame, void *cookie,
if (call_count == 0)
AFR_STACK_UNWIND (fsyncdir, frame, local->op_ret,
- local->op_errno, xdata);
+ local->op_errno, local->xdata_rsp);
return 0;
}
-int32_t
-afr_fsyncdir (call_frame_t *frame, xlator_t *this, fd_t *fd,
- int32_t datasync, dict_t *xdata)
+int
+afr_fsyncdir (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync,
+ dict_t *xdata)
{
- afr_private_t *priv = NULL;
+ afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
- int32_t op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
- priv = this->private;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ priv = this->private;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -2736,10 +2360,10 @@ afr_fsyncdir (call_frame_t *frame, xlator_t *this, fd_t *fd,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (fsyncdir, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (fsyncdir, frame, -1, op_errno, NULL);
+
return 0;
}
@@ -2762,6 +2386,10 @@ afr_xattrop_cbk (call_frame_t *frame, void *cookie,
if (op_ret == 0) {
if (!local->cont.xattrop.xattr)
local->cont.xattrop.xattr = dict_ref (xattr);
+
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
+
local->op_ret = 0;
}
@@ -2773,7 +2401,7 @@ afr_xattrop_cbk (call_frame_t *frame, void *cookie,
if (call_count == 0)
AFR_STACK_UNWIND (xattrop, frame, local->op_ret, local->op_errno,
- local->cont.xattrop.xattr, xdata);
+ local->cont.xattrop.xattr, local->xdata_rsp);
return 0;
}
@@ -2785,25 +2413,21 @@ afr_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc,
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
- int32_t op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -2816,10 +2440,10 @@ afr_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (xattrop, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (xattrop, frame, -1, op_errno, NULL, NULL);
+
return 0;
}
@@ -2844,6 +2468,8 @@ afr_fxattrop_cbk (call_frame_t *frame, void *cookie,
if (!local->cont.fxattrop.xattr)
local->cont.fxattrop.xattr = dict_ref (xattr);
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
local->op_ret = 0;
}
@@ -2855,7 +2481,7 @@ afr_fxattrop_cbk (call_frame_t *frame, void *cookie,
if (call_count == 0)
AFR_STACK_UNWIND (fxattrop, frame, local->op_ret, local->op_errno,
- local->cont.fxattrop.xattr, xdata);
+ local->cont.fxattrop.xattr, local->xdata_rsp);
return 0;
}
@@ -2867,25 +2493,21 @@ afr_fxattrop (call_frame_t *frame, xlator_t *this, fd_t *fd,
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
int32_t op_errno = 0;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -2898,10 +2520,10 @@ afr_fxattrop (call_frame_t *frame, xlator_t *this, fd_t *fd,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (fxattrop, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (fxattrop, frame, -1, op_errno, NULL, NULL);
+
return 0;
}
@@ -2909,8 +2531,8 @@ out:
int32_t
-afr_inodelk_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+afr_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
afr_local_t *local = NULL;
@@ -2944,25 +2566,21 @@ afr_inodelk (call_frame_t *frame, xlator_t *this,
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
- int32_t op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOMEM;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -2976,18 +2594,17 @@ afr_inodelk (call_frame_t *frame, xlator_t *this,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (inodelk, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (inodelk, frame, -1, op_errno, NULL);
+
return 0;
}
int32_t
-afr_finodelk_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- dict_t *xdata)
+afr_finodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
afr_local_t *local = NULL;
@@ -3015,31 +2632,26 @@ afr_finodelk_cbk (call_frame_t *frame, void *cookie,
int32_t
-afr_finodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, int32_t cmd, struct gf_flock *flock,
- dict_t *xdata)
+afr_finodelk (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd,
+ int32_t cmd, struct gf_flock *flock, dict_t *xdata)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
- int32_t op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -3053,10 +2665,10 @@ afr_finodelk (call_frame_t *frame, xlator_t *this,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (finodelk, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (finodelk, frame, -1, op_errno, NULL);
+
return 0;
}
@@ -3089,33 +2701,28 @@ afr_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
}
-int32_t
-afr_entrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc,
- const char *basename, entrylk_cmd cmd, entrylk_type type,
- dict_t *xdata)
+int
+afr_entrylk (call_frame_t *frame, xlator_t *this, const char *volume,
+ loc_t *loc, const char *basename, entrylk_cmd cmd,
+ entrylk_type type, dict_t *xdata)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
int32_t op_errno = 0;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -3129,18 +2736,18 @@ afr_entrylk (call_frame_t *frame, xlator_t *this,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (entrylk, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (entrylk, frame, -1, op_errno, NULL);
+
return 0;
}
-int32_t
-afr_fentrylk_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+int
+afr_fentrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
afr_local_t *local = NULL;
@@ -3167,33 +2774,28 @@ afr_fentrylk_cbk (call_frame_t *frame, void *cookie,
}
-int32_t
-afr_fentrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd,
- const char *basename, entrylk_cmd cmd,
- entrylk_type type, dict_t *xdata)
+int
+afr_fentrylk (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd,
+ const char *basename, entrylk_cmd cmd, entrylk_type type,
+ dict_t *xdata)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int ret = -1;
int i = 0;
int32_t call_count = 0;
- int32_t op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
@@ -3207,82 +2809,85 @@ afr_fentrylk (call_frame_t *frame, xlator_t *this,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (fentrylk, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (fentrylk, frame, -1, op_errno, NULL);
+
return 0;
}
-int32_t
-afr_statfs_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- struct statvfs *statvfs, dict_t *xdata)
+
+int
+afr_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int op_ret,
+ int op_errno, struct statvfs *statvfs, dict_t *xdata)
{
afr_local_t *local = NULL;
int call_count = 0;
+ struct statvfs *buf = NULL;
LOCK (&frame->lock);
{
local = frame->local;
- if (op_ret == 0) {
- local->op_ret = op_ret;
-
- if (local->cont.statfs.buf_set) {
- if (statvfs->f_bavail < local->cont.statfs.buf.f_bavail)
- local->cont.statfs.buf = *statvfs;
- } else {
- local->cont.statfs.buf = *statvfs;
- local->cont.statfs.buf_set = 1;
- }
- }
-
- if (op_ret == -1)
+ if (op_ret != 0) {
local->op_errno = op_errno;
-
+ goto unlock;
+ }
+
+ local->op_ret = op_ret;
+
+ buf = &local->cont.statfs.buf;
+ if (local->cont.statfs.buf_set) {
+ if (statvfs->f_bavail < buf->f_bavail) {
+ *buf = *statvfs;
+ if (xdata) {
+ if (local->xdata_rsp)
+ dict_unref (local->xdata_rsp);
+ local->xdata_rsp = dict_ref (xdata);
+ }
+ }
+ } else {
+ *buf = *statvfs;
+ local->cont.statfs.buf_set = 1;
+ if (xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ }
}
+unlock:
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0)
AFR_STACK_UNWIND (statfs, frame, local->op_ret, local->op_errno,
- &local->cont.statfs.buf, xdata);
+ &local->cont.statfs.buf, local->xdata_rsp);
return 0;
}
-int32_t
-afr_statfs (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xdata)
+int
+afr_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- int child_count = 0;
afr_local_t * local = NULL;
+ afr_private_t *priv = NULL;
int i = 0;
- int ret = -1;
int call_count = 0;
- int32_t op_errno = 0;
+ int32_t op_errno = ENOMEM;
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- child_count = priv->child_count;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ priv = this->private;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
- for (i = 0; i < child_count; i++) {
+ for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
STACK_WIND (frame, afr_statfs_cbk,
priv->children[i],
@@ -3293,10 +2898,10 @@ afr_statfs (call_frame_t *frame, xlator_t *this,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (statfs, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (statfs, frame, -1, op_errno, NULL, NULL);
+
return 0;
}
@@ -3405,21 +3010,6 @@ afr_lk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
AFR_STACK_UNWIND (lk, frame, -1, ENOTCONN,
&local->cont.lk.ret_flock, NULL);
} else {
- /* locking has succeeded on all nodes that are up */
-
- /* temporarily
- ret = afr_mark_locked_nodes (this, local->fd,
- local->cont.lk.locked_nodes);
- if (ret)
- gf_log (this->name, GF_LOG_DEBUG,
- "Could not save locked nodes info in fdctx");
-
- ret = afr_save_locked_fd (this, local->fd);
- if (ret)
- gf_log (this->name, GF_LOG_DEBUG,
- "Could not save locked fd");
-
- */
AFR_STACK_UNWIND (lk, frame, local->op_ret, local->op_errno,
&local->cont.lk.ret_flock, NULL);
}
@@ -3435,20 +3025,12 @@ afr_lk (call_frame_t *frame, xlator_t *this,
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
int i = 0;
- int32_t op_errno = 0;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
priv = this->private;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
goto out;
local->cont.lk.locked_nodes = GF_CALLOC (priv->child_count,
@@ -3470,29 +3052,16 @@ afr_lk (call_frame_t *frame, xlator_t *this,
priv->children[i]->fops->lk,
fd, cmd, flock, xdata);
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (lk, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (lk, frame, -1, op_errno, NULL, NULL);
+
return 0;
}
int
afr_forget (xlator_t *this, inode_t *inode)
{
- uint64_t ctx_addr = 0;
- afr_inode_ctx_t *ctx = NULL;
-
- inode_ctx_get (inode, this, &ctx_addr);
-
- if (!ctx_addr)
- goto out;
-
- ctx = (afr_inode_ctx_t *)(long)ctx_addr;
- if (ctx->fresh_children)
- GF_FREE (ctx->fresh_children);
- GF_FREE (ctx);
-out:
return 0;
}
@@ -3512,7 +3081,6 @@ afr_priv_dump (xlator_t *this)
snprintf(key_prefix, GF_DUMP_MAX_BUF_LEN, "%s.%s", this->type, this->name);
gf_proc_dump_add_section(key_prefix);
gf_proc_dump_write("child_count", "%u", priv->child_count);
- gf_proc_dump_write("read_child_rr", "%u", priv->read_child_rr);
for (i = 0; i < priv->child_count; i++) {
sprintf (key, "child_up[%d]", i);
gf_proc_dump_write(key, "%d", priv->child_up[i]);
@@ -3569,7 +3137,7 @@ afr_notify (xlator_t *this, int32_t event,
int idx = -1;
int ret = -1;
int call_psh = 0;
- int up_child = AFR_ALL_CHILDREN;
+ int up_child = -1;
dict_t *input = NULL;
dict_t *output = NULL;
@@ -3578,6 +3146,14 @@ afr_notify (xlator_t *this, int32_t event,
if (!priv)
return 0;
+ /*
+ * We need to reset this in case children come up in "staggered"
+ * fashion, so that we discover a late-arriving local subvolume. Note
+ * that we could end up issuing N lookups to the first subvolume, and
+ * O(N^2) overall, but N is small for AFR so it shouldn't be an issue.
+ */
+ priv->did_discovery = _gf_false;
+
had_heard_from_all = 1;
for (i = 0; i < priv->child_count; i++) {
if (!priv->last_event[i]) {
@@ -3613,6 +3189,7 @@ afr_notify (xlator_t *this, int32_t event,
*/
if (priv->child_up[idx] != 1) {
priv->up_count++;
+ priv->event_generation++;
}
priv->child_up[idx] = 1;
@@ -3652,6 +3229,7 @@ afr_notify (xlator_t *this, int32_t event,
*/
if (priv->child_up[idx] == 1) {
priv->down_count++;
+ priv->event_generation++;
}
priv->child_up[idx] = 0;
@@ -3684,6 +3262,10 @@ afr_notify (xlator_t *this, int32_t event,
case GF_EVENT_TRANSLATOR_OP:
input = data;
output = data2;
+ if (!had_heard_from_all) {
+ ret = -1;
+ goto out;
+ }
ret = afr_xl_op (this, input, output);
goto out;
break;
@@ -3714,8 +3296,7 @@ afr_notify (xlator_t *this, int32_t event,
LOCK (&priv->lock);
{
- up_children = afr_up_children_count (priv->child_up,
- priv->child_count);
+ up_children = AFR_COUNT (priv->child_up, priv->child_count);
for (i = 0; i < priv->child_count; i++) {
if (priv->last_event[i] == GF_EVENT_CHILD_UP) {
event = GF_EVENT_CHILD_UP;
@@ -3735,39 +3316,23 @@ afr_notify (xlator_t *this, int32_t event,
ret = 0;
if (propagate)
ret = default_notify (this, event, data);
- if (call_psh && priv->shd.iamshd)
- afr_proactive_self_heal ((void*) (long) up_child);
+ if (call_psh && priv->shd.iamshd) {
+ afr_selfheal_childup (this, up_child);
+ }
out:
return ret;
}
-int
-afr_first_up_child (unsigned char *child_up, size_t child_count)
-{
- int ret = -1;
- int i = 0;
-
- GF_ASSERT (child_up);
-
- for (i = 0; i < child_count; i++) {
- if (child_up[i]) {
- ret = i;
- break;
- }
- }
-
- return ret;
-}
int
afr_local_init (afr_local_t *local, afr_private_t *priv, int32_t *op_errno)
{
- int ret = -1;
-
local->op_ret = -1;
local->op_errno = EUCLEAN;
+ syncbarrier_init (&local->barrier);
+
local->child_up = GF_CALLOC (priv->child_count,
sizeof (*local->child_up),
gf_afr_mt_char);
@@ -3779,27 +3344,42 @@ afr_local_init (afr_local_t *local, afr_private_t *priv, int32_t *op_errno)
memcpy (local->child_up, priv->child_up,
sizeof (*local->child_up) * priv->child_count);
- local->call_count = afr_up_children_count (local->child_up,
- priv->child_count);
+ local->call_count = AFR_COUNT (local->child_up, priv->child_count);
if (local->call_count == 0) {
gf_log (THIS->name, GF_LOG_INFO, "no subvolumes up");
if (op_errno)
*op_errno = ENOTCONN;
goto out;
}
-
- local->child_errno = GF_CALLOC (priv->child_count,
- sizeof (*local->child_errno),
- gf_afr_mt_int32_t);
- if (!local->child_errno) {
- if (op_errno)
- *op_errno = ENOMEM;
- goto out;
- }
-
- ret = 0;
+ local->event_generation = priv->event_generation;
+
+ local->read_attempted = GF_CALLOC (priv->child_count, sizeof (char),
+ gf_afr_mt_char);
+ if (!local->read_attempted) {
+ if (op_errno)
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ local->readable = GF_CALLOC (priv->child_count, sizeof (char),
+ gf_afr_mt_char);
+ if (!local->readable) {
+ if (op_errno)
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ local->replies = GF_CALLOC(priv->child_count, sizeof(*local->replies),
+ gf_afr_mt_reply_t);
+ if (!local->replies) {
+ if (op_errno)
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ return 0;
out:
- return ret;
+ return -1;
}
int
@@ -3808,16 +3388,6 @@ afr_internal_lock_init (afr_internal_lock_t *lk, size_t child_count,
{
int ret = -ENOMEM;
- lk->inode_locked_nodes = GF_CALLOC (sizeof (*lk->inode_locked_nodes),
- child_count, gf_afr_mt_char);
- if (NULL == lk->inode_locked_nodes)
- goto out;
-
- lk->entry_locked_nodes = GF_CALLOC (sizeof (*lk->entry_locked_nodes),
- child_count, gf_afr_mt_char);
- if (NULL == lk->entry_locked_nodes)
- goto out;
-
lk->locked_nodes = GF_CALLOC (sizeof (*lk->locked_nodes),
child_count, gf_afr_mt_char);
if (NULL == lk->locked_nodes)
@@ -3876,6 +3446,21 @@ out:
}
int
+afr_inodelk_init (afr_inodelk_t *lk, char *dom, size_t child_count)
+{
+ int ret = -ENOMEM;
+
+ lk->domain = dom;
+ lk->locked_nodes = GF_CALLOC (sizeof (*lk->locked_nodes),
+ child_count, gf_afr_mt_char);
+ if (NULL == lk->locked_nodes)
+ goto out;
+ ret = 0;
+out:
+ return ret;
+}
+
+int
afr_transaction_local_init (afr_local_t *local, xlator_t *this)
{
int child_up_count = 0;
@@ -3888,14 +3473,20 @@ afr_transaction_local_init (afr_local_t *local, xlator_t *this)
if (ret < 0)
goto out;
+ if ((local->transaction.type == AFR_DATA_TRANSACTION) ||
+ (local->transaction.type == AFR_METADATA_TRANSACTION)) {
+ ret = afr_inodelk_init (&local->internal_lock.inodelk[0],
+ this->name, priv->child_count);
+ if (ret < 0)
+ goto out;
+ }
+
ret = -ENOMEM;
- child_up_count = afr_up_children_count (local->child_up,
- priv->child_count);
+ child_up_count = AFR_COUNT (local->child_up, priv->child_count);
if (priv->optimistic_change_log && child_up_count == priv->child_count)
local->optimistic_change_log = 1;
- local->first_up_child = afr_first_up_child (local->child_up,
- priv->child_count);
+ local->pre_op_compat = priv->pre_op_compat;
local->transaction.eager_lock =
GF_CALLOC (sizeof (*local->transaction.eager_lock),
@@ -3905,120 +3496,36 @@ afr_transaction_local_init (afr_local_t *local, xlator_t *this)
if (!local->transaction.eager_lock)
goto out;
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children)
- goto out;
-
- if (local->fd) {
- local->fd_open_on = GF_CALLOC (sizeof (*local->fd_open_on),
- priv->child_count,
- gf_afr_mt_char);
- if (!local->fd_open_on)
- goto out;
- }
-
local->transaction.pre_op = GF_CALLOC (sizeof (*local->transaction.pre_op),
priv->child_count,
gf_afr_mt_char);
if (!local->transaction.pre_op)
goto out;
+ local->transaction.fop_subvols = GF_CALLOC (sizeof (*local->transaction.fop_subvols),
+ priv->child_count,
+ gf_afr_mt_char);
+ if (!local->transaction.fop_subvols)
+ goto out;
+
+ local->transaction.failed_subvols = GF_CALLOC (sizeof (*local->transaction.failed_subvols),
+ priv->child_count,
+ gf_afr_mt_char);
+ if (!local->transaction.failed_subvols)
+ goto out;
+
local->pending = afr_matrix_create (priv->child_count,
AFR_NUM_CHANGE_LOGS);
if (!local->pending)
goto out;
- local->transaction.child_errno =
- GF_CALLOC (sizeof (*local->transaction.child_errno),
- priv->child_count,
- gf_afr_mt_int32_t);
- local->transaction.erase_pending = 1;
+ INIT_LIST_HEAD (&local->transaction.eager_locked);
ret = 0;
out:
return ret;
}
-void
-afr_reset_children (int32_t *fresh_children, int32_t child_count)
-{
- unsigned int i = 0;
- for (i = 0; i < child_count; i++)
- fresh_children[i] = -1;
-}
-
-int32_t*
-afr_children_create (int32_t child_count)
-{
- int32_t *children = NULL;
- int i = 0;
-
- GF_ASSERT (child_count > 0);
-
- children = GF_CALLOC (child_count, sizeof (*children),
- gf_afr_mt_int32_t);
- if (NULL == children)
- goto out;
- for (i = 0; i < child_count; i++)
- children[i] = -1;
-out:
- return children;
-}
-
-void
-afr_children_add_child (int32_t *children, int32_t child,
- int32_t child_count)
-{
- gf_boolean_t child_found = _gf_false;
- int i = 0;
-
- for (i = 0; i < child_count; i++) {
- if (children[i] == -1)
- break;
- if (children[i] == child) {
- child_found = _gf_true;
- break;
- }
- }
-
- if (!child_found) {
- GF_ASSERT (i < child_count);
- children[i] = child;
- }
-}
-
-void
-afr_children_rm_child (int32_t *children, int32_t child, int32_t child_count)
-{
- int i = 0;
-
- GF_ASSERT ((child >= 0) && (child < child_count));
- for (i = 0; i < child_count; i++) {
- if (children[i] == -1)
- break;
- if (children[i] == child) {
- if (i != (child_count - 1))
- memmove (children + i, children + i + 1,
- sizeof (*children)*(child_count - i - 1));
- children[child_count - 1] = -1;
- break;
- }
- }
-}
-
-int
-afr_get_children_count (int32_t *children, unsigned int child_count)
-{
- int count = 0;
- int i = 0;
-
- for (i = 0; i < child_count; i++) {
- if (children[i] == -1)
- break;
- count++;
- }
- return count;
-}
void
afr_set_low_priority (call_frame_t *frame)
@@ -4026,38 +3533,6 @@ afr_set_low_priority (call_frame_t *frame)
frame->root->pid = LOW_PRIO_PROC_PID;
}
-int
-afr_child_fd_ctx_set (xlator_t *this, fd_t *fd, int32_t child,
- int flags)
-{
- int ret = 0;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
-
- GF_ASSERT (fd && fd->inode);
- ret = afr_fd_ctx_set (this, fd);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "could not set fd ctx for fd=%p", fd);
- goto out;
- }
-
- ret = fd_ctx_get (fd, this, &ctx);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "could not get fd ctx for fd=%p", fd);
- goto out;
- }
-
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
- fd_ctx->opened_on[child] = AFR_FD_OPENED;
- if (!IA_ISDIR (fd->inode->ia_type)) {
- fd_ctx->flags = flags;
- }
- ret = 0;
-out:
- return ret;
-}
gf_boolean_t
afr_have_quorum (char *logname, afr_private_t *priv)
@@ -4104,23 +3579,6 @@ afr_priv_destroy (afr_private_t *priv)
if (!priv)
goto out;
inode_unref (priv->root_inode);
- GF_FREE (priv->shd.pos);
- GF_FREE (priv->shd.pending);
- GF_FREE (priv->shd.inprogress);
-// for (i = 0; i < priv->child_count; i++)
-// if (priv->shd.timer && priv->shd.timer[i])
-// gf_timer_call_cancel (this->ctx, priv->shd.timer[i]);
- GF_FREE (priv->shd.timer);
-
- if (priv->shd.healed)
- eh_destroy (priv->shd.healed);
-
- if (priv->shd.heal_failed)
- eh_destroy (priv->shd.heal_failed);
-
- if (priv->shd.split_brain)
- eh_destroy (priv->shd.split_brain);
-
GF_FREE (priv->last_event);
if (priv->pending_key) {
for (i = 0; i < priv->child_count; i++)
@@ -4130,8 +3588,7 @@ afr_priv_destroy (afr_private_t *priv)
GF_FREE (priv->children);
GF_FREE (priv->child_up);
LOCK_DESTROY (&priv->lock);
- LOCK_DESTROY (&priv->read_child_lock);
- pthread_mutex_destroy (&priv->mutex);
+
GF_FREE (priv);
out:
return;
@@ -4147,3 +3604,22 @@ xlator_subvolume_count (xlator_t *this)
i++;
return i;
}
+
+
+void
+afr_handle_open_fd_count (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_fd_ctx_t *fd_ctx = NULL;
+
+ local = frame->local;
+
+ if (!local->fd)
+ return;
+
+ fd_ctx = afr_fd_ctx_get (local->fd, this);
+ if (!fd_ctx)
+ return;
+
+ fd_ctx->open_fd_count = local->open_fd_count;
+}
diff --git a/xlators/cluster/afr/src/afr-dir-read.c b/xlators/cluster/afr/src/afr-dir-read.c
index b661cfa9c..fa1da3958 100644
--- a/xlators/cluster/afr/src/afr-dir-read.c
+++ b/xlators/cluster/afr/src/afr-dir-read.c
@@ -37,177 +37,7 @@
#include "checksum.h"
#include "afr.h"
-#include "afr-self-heal.h"
-#include "afr-self-heal-common.h"
-
-int
-afr_examine_dir_sh_unwind (call_frame_t *frame, xlator_t *this, int32_t op_ret,
- int32_t op_errno, int32_t sh_failed)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- afr_set_opendir_done (this, local->fd->inode);
-
- AFR_STACK_UNWIND (opendir, frame, local->op_ret,
- local->op_errno, local->fd, NULL);
-
- return 0;
-}
-
-
-gf_boolean_t
-__checksums_differ (uint32_t *checksum, int child_count,
- unsigned char *child_up)
-{
- int ret = _gf_false;
- int i = 0;
- uint32_t cksum = 0;
- gf_boolean_t activate_check = _gf_false;
-
- for (i = 0; i < child_count; i++) {
- if (!child_up[i])
- continue;
- if (_gf_false == activate_check) {
- cksum = checksum[i];
- activate_check = _gf_true;
- continue;
- }
-
- if (cksum != checksum[i]) {
- ret = _gf_true;
- break;
- }
-
- cksum = checksum[i];
- }
-
- return ret;
-}
-
-
-int32_t
-afr_examine_dir_readdir_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- gf_dirent_t *entries, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- afr_self_heal_t * sh = NULL;
- gf_dirent_t * entry = NULL;
- gf_dirent_t * tmp = NULL;
- char *reason = NULL;
- int child_index = 0;
- uint32_t entry_cksum = 0;
- int call_count = 0;
- off_t last_offset = 0;
- inode_t *inode = NULL;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
- inode = local->fd->inode;
-
- child_index = (long) cookie;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "%s: failed to do opendir on %s",
- local->loc.path, priv->children[child_index]->name);
- local->op_ret = -1;
- local->op_ret = op_errno;
- goto out;
- }
-
- if (op_ret == 0) {
- gf_log (this->name, GF_LOG_DEBUG,
- "%s: no entries found in %s",
- local->loc.path, priv->children[child_index]->name);
- goto out;
- }
-
- list_for_each_entry_safe (entry, tmp, &entries->list, list) {
- entry_cksum = gf_rsync_weak_checksum ((unsigned char *)entry->d_name,
- strlen (entry->d_name));
- local->cont.opendir.checksum[child_index] ^= entry_cksum;
- }
-
- list_for_each_entry (entry, &entries->list, list) {
- last_offset = entry->d_off;
- }
-
- /* read more entries */
-
- STACK_WIND_COOKIE (frame, afr_examine_dir_readdir_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->readdir,
- local->fd, 131072, last_offset, NULL);
-
- return 0;
-
-out:
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- if (__checksums_differ (local->cont.opendir.checksum,
- priv->child_count,
- local->child_up)) {
-
- sh->do_entry_self_heal = _gf_true;
- sh->forced_merge = _gf_true;
-
- reason = "checksums of directory differ";
- afr_launch_self_heal (frame, this, inode, _gf_false,
- inode->ia_type, reason, NULL,
- afr_examine_dir_sh_unwind);
- } else {
- afr_set_opendir_done (this, inode);
-
- AFR_STACK_UNWIND (opendir, frame, local->op_ret,
- local->op_errno, local->fd, NULL);
- }
- }
-
- return 0;
-}
-
-
-int
-afr_examine_dir (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- int i = 0;
- int call_count = 0;
-
- local = frame->local;
- priv = this->private;
-
- local->cont.opendir.checksum = GF_CALLOC (priv->child_count,
- sizeof (*local->cont.opendir.checksum),
- gf_afr_mt_int32_t);
-
- call_count = afr_up_children_count (local->child_up, priv->child_count);
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i]) {
- STACK_WIND_COOKIE (frame, afr_examine_dir_readdir_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->readdir,
- local->fd, 131072, 0, NULL);
-
- if (!--call_count)
- break;
- }
- }
-
- return 0;
-}
+#include "afr-transaction.h"
int32_t
@@ -215,112 +45,66 @@ afr_opendir_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
fd_t *fd, dict_t *xdata)
{
- afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- int32_t up_children_count = 0;
- int ret = -1;
int call_count = -1;
int32_t child_index = 0;
+ afr_fd_ctx_t *fd_ctx = NULL;
- priv = this->private;
local = frame->local;
+ fd_ctx = local->fd_ctx;
child_index = (long) cookie;
- up_children_count = afr_up_children_count (local->child_up,
- priv->child_count);
-
LOCK (&frame->lock);
{
- if (op_ret >= 0) {
+ if (op_ret == -1) {
+ local->op_errno = op_errno;
+ fd_ctx->opened_on[child_index] = AFR_FD_NOT_OPENED;
+ } else {
local->op_ret = op_ret;
- ret = afr_child_fd_ctx_set (this, fd, child_index, 0);
- if (ret) {
- local->op_ret = -1;
- local->op_errno = -ret;
- goto unlock;
- }
+ fd_ctx->opened_on[child_index] = AFR_FD_OPENED;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
}
-
- local->op_errno = op_errno;
}
-unlock:
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
- if (call_count == 0) {
- if (local->op_ret != 0)
- goto out;
-
- if (!afr_is_opendir_done (this, local->fd->inode) &&
- up_children_count > 1) {
-
- /*
- * This is the first opendir on this inode. We need
- * to check if the directory's entries are the same
- * on all subvolumes. This is needed in addition
- * to regular entry self-heal because the readdir
- * call is sent only to the first subvolume, and
- * thus files that exist only there will never be healed
- * otherwise (assuming changelog shows no anomalies).
- */
-
- gf_log (this->name, GF_LOG_TRACE,
- "reading contents of directory %s looking for mismatch",
- local->loc.path);
-
- afr_examine_dir (frame, this);
-
- } else {
- /* do the unwind */
- goto out;
- }
- }
-
- return 0;
-
-out:
- AFR_STACK_UNWIND (opendir, frame, local->op_ret,
- local->op_errno, local->fd, NULL);
-
+ if (call_count == 0)
+ AFR_STACK_UNWIND (opendir, frame, local->op_ret,
+ local->op_errno, local->fd, NULL);
return 0;
}
-int32_t
-afr_opendir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, fd_t *fd)
+int
+afr_opendir (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd)
{
afr_private_t * priv = NULL;
afr_local_t * local = NULL;
- int child_count = 0;
int i = 0;
- int ret = -1;
int call_count = -1;
- int32_t op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int32_t op_errno = ENOMEM;
+ afr_fd_ctx_t *fd_ctx = NULL;
priv = this->private;
- child_count = priv->child_count;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!fd_ctx)
+ goto out;
loc_copy (&local->loc, loc);
local->fd = fd_ref (fd);
+ local->fd_ctx = fd_ctx;
call_count = local->call_count;
- for (i = 0; i < child_count; i++) {
+ for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
STACK_WIND_COOKIE (frame, afr_opendir_cbk,
(void*) (long) i,
@@ -333,382 +117,284 @@ afr_opendir (call_frame_t *frame, xlator_t *this,
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (opendir, frame, -1, op_errno, fd, NULL);
-
+ AFR_STACK_UNWIND (opendir, frame, -1, op_errno, fd, NULL);
return 0;
}
-/**
- * Common algorithm for directory read calls:
- *
- * - Try the fop on the first child that is up
- * - if we have failed due to ENOTCONN:
- * try the next child
- *
- * Applicable to: readdir
- */
-
+#define BACKEND_D_OFF_BITS 63
+#define PRESENT_D_OFF_BITS 63
-struct entry_name {
- char *name;
- struct list_head list;
-};
+#define ONE 1ULL
+#define MASK (~0ULL)
+#define PRESENT_MASK (MASK >> (64 - PRESENT_D_OFF_BITS))
+#define BACKEND_MASK (MASK >> (64 - BACKEND_D_OFF_BITS))
+#define TOP_BIT (ONE << (PRESENT_D_OFF_BITS - 1))
+#define SHIFT_BITS (max (0, (BACKEND_D_OFF_BITS - PRESENT_D_OFF_BITS + 1)))
-static gf_boolean_t
-remembered_name (const char *name, struct list_head *entries)
+static uint64_t
+afr_bits_for (uint64_t num)
{
- struct entry_name *e = NULL;
- gf_boolean_t ret = _gf_false;
+ uint64_t bits = 0, ctrl = 1;
- list_for_each_entry (e, entries, list) {
- if (!strcmp (name, e->name)) {
- ret = _gf_true;
- goto out;
- }
- }
+ while (ctrl < num) {
+ ctrl *= 2;
+ bits ++;
+ }
-out:
- return ret;
+ return bits;
}
-
-static void
-afr_remember_entries (gf_dirent_t *entries, fd_t *fd)
+int
+afr_itransform (xlator_t *this, int subvol, uint64_t x, uint64_t *y_p)
{
- struct entry_name *n = NULL;
- gf_dirent_t *entry = NULL;
- int ret = 0;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
-
- ret = fd_ctx_get (fd, THIS, &ctx);
- if (ret < 0) {
- gf_log (THIS->name, GF_LOG_INFO,
- "could not get fd ctx for fd=%p", fd);
- return;
+ afr_private_t *conf = NULL;
+ int cnt = 0;
+ int max = 0;
+ uint64_t y = 0;
+ uint64_t hi_mask = 0;
+ uint64_t off_mask = 0;
+ int max_bits = 0;
+
+ if (x == ((uint64_t) -1)) {
+ y = (uint64_t) -1;
+ goto out;
}
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+ conf = this->private;
+ if (!conf)
+ goto out;
- list_for_each_entry (entry, &entries->list, list) {
- n = GF_CALLOC (1, sizeof (*n), gf_afr_mt_entry_name);
- n->name = gf_strdup (entry->d_name);
- INIT_LIST_HEAD (&n->list);
+ max = conf->child_count;
+ cnt = subvol;
- list_add (&n->list, &fd_ctx->entries);
- }
-}
+ if (max == 1) {
+ y = x;
+ goto out;
+ }
+ max_bits = afr_bits_for (max);
-static off_t
-afr_filter_entries (gf_dirent_t *entries, fd_t *fd)
-{
- gf_dirent_t *entry = NULL;
- gf_dirent_t *tmp = NULL;
- int ret = 0;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
- off_t offset = 0;
-
- ret = fd_ctx_get (fd, THIS, &ctx);
- if (ret < 0) {
- gf_log (THIS->name, GF_LOG_INFO,
- "could not get fd ctx for fd=%p", fd);
- return -1;
- }
-
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
-
- list_for_each_entry_safe (entry, tmp, &entries->list, list) {
- offset = entry->d_off;
+ hi_mask = ~(PRESENT_MASK >> (max_bits + 1));
- if (remembered_name (entry->d_name, &fd_ctx->entries)) {
- list_del (&entry->list);
- GF_FREE (entry);
- }
+ if (x & hi_mask) {
+ /* HUGE d_off */
+ off_mask = MASK << max_bits;
+ y = TOP_BIT | ((x >> SHIFT_BITS) & off_mask) | cnt;
+ } else {
+ /* small d_off */
+ y = ((x * max) + cnt);
}
- return offset;
+out:
+ if (y_p)
+ *y_p = y;
+
+ return 0;
}
-static void
-afr_forget_entries (fd_t *fd)
+int
+afr_deitransform (xlator_t *this, uint64_t y, int *subvol_p,
+ uint64_t *x_p)
{
- struct entry_name *entry = NULL;
- struct entry_name *tmp = NULL;
- int ret = 0;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
-
- ret = fd_ctx_get (fd, THIS, &ctx);
- if (ret < 0) {
- gf_log (THIS->name, GF_LOG_INFO,
- "could not get fd ctx for fd=%p", fd);
- return;
- }
-
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+ afr_private_t *conf = NULL;
+ int cnt = 0;
+ int max = 0;
+ uint64_t x = 0;
+ int subvol = 0;
+ int max_bits = 0;
+ uint64_t off_mask = 0;
+ uint64_t host_mask = 0;
+
+ if (!this->private)
+ return -1;
- list_for_each_entry_safe (entry, tmp, &fd_ctx->entries, list) {
- GF_FREE (entry->name);
- list_del (&entry->list);
- GF_FREE (entry);
- }
-}
+ conf = this->private;
+ max = conf->child_count;
+ if (max == 1) {
+ x = y;
+ cnt = 0;
+ goto out;
+ }
-int32_t
-afr_readdir_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- gf_dirent_t *entries, dict_t *xdata)
-{
- afr_local_t * local = NULL;
- gf_dirent_t * entry = NULL;
- gf_dirent_t * tmp = NULL;
+ if (y & TOP_BIT) {
+ /* HUGE d_off */
+ max_bits = afr_bits_for (max);
+ off_mask = (MASK << max_bits);
+ host_mask = ~(off_mask);
- local = frame->local;
-
- if (op_ret == -1)
- goto out;
+ x = ((y & ~TOP_BIT) & off_mask) << SHIFT_BITS;
- list_for_each_entry_safe (entry, tmp, &entries->list, list) {
- if ((local->fd->inode == local->fd->inode->table->root)
- && !strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR)) {
- list_del_init (&entry->list);
- GF_FREE (entry);
- }
+ cnt = y & host_mask;
+ } else {
+ /* small d_off */
+ cnt = y % max;
+ x = y / max;
}
out:
- AFR_STACK_UNWIND (readdir, frame, op_ret, op_errno, entries, NULL);
+ subvol = cnt;
+
+ if (subvol_p)
+ *subvol_p = subvol;
+
+ if (x_p)
+ *x_p = x;
return 0;
}
-int32_t
-afr_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, gf_dirent_t *entries,
- dict_t *xdata)
+static void
+afr_readdir_transform_entries (gf_dirent_t *subvol_entries, int subvol,
+ gf_dirent_t *entries, fd_t *fd)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int32_t next_call_child = -1;
- int ret = 0;
- gf_dirent_t * entry = NULL;
- gf_dirent_t * tmp = NULL;
- int32_t *last_index = NULL;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
- off_t offset = 0;
- int32_t call_child = -1;
-
- priv = this->private;
- children = priv->children;
-
- local = frame->local;
-
- read_child = (long) cookie;
- last_index = &local->cont.readdir.last_index;
- fresh_children = local->fresh_children;
-
- /* the value of the last_index changes if afr_next_call_child is
- * called. So to find the call_child of this callback use last_index
- * before the next_call_child call.
- */
- if (*last_index == -1)
- call_child = read_child;
- else
- call_child = fresh_children[*last_index];
-
- if (priv->strict_readdir) {
- ret = fd_ctx_get (local->fd, this, &ctx);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_INFO,
- "could not get fd ctx for fd=%p", local->fd);
- op_ret = -1;
- op_errno = -ret;
- goto out;
+ afr_private_t *priv = NULL;
+ gf_dirent_t *entry = NULL;
+ gf_dirent_t *tmp = NULL;
+ unsigned char *data_readable = NULL;
+ unsigned char *metadata_readable = NULL;
+ int gen = 0;
+
+ priv = THIS->private;
+
+ data_readable = alloca0 (priv->child_count);
+ metadata_readable = alloca0 (priv->child_count);
+
+ list_for_each_entry_safe (entry, tmp, &subvol_entries->list, list) {
+ if (__is_root_gfid (fd->inode->gfid) &&
+ !strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR)) {
+ continue;
}
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+ list_del_init (&entry->list);
+ afr_itransform (THIS, subvol, entry->d_off, &entry->d_off);
+ list_add_tail (&entry->list, &entries->list);
- if (op_ret == -1) {
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index,
- read_child);
- if (next_call_child < 0)
- goto out;
- gf_log (this->name, GF_LOG_TRACE,
- "starting readdir afresh on child %d, offset %"PRId64,
- next_call_child, (uint64_t) 0);
-
- fd_ctx->failed_over = _gf_true;
-
- STACK_WIND_COOKIE (frame, afr_readdirp_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->readdirp,
- local->fd,
- local->cont.readdir.size, 0,
- local->cont.readdir.dict);
- return 0;
- }
- }
+ if (entry->inode) {
+ gen = 0;
+ afr_inode_read_subvol_get (entry->inode, THIS,
+ data_readable,
+ metadata_readable, &gen);
- if (op_ret != -1) {
- list_for_each_entry_safe (entry, tmp, &entries->list, list) {
- if ((local->fd->inode == local->fd->inode->table->root)
- && !strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR)) {
- list_del_init (&entry->list);
- GF_FREE (entry);
- }
- }
- }
+ if (gen != priv->event_generation ||
+ !data_readable[subvol] ||
+ !metadata_readable[subvol]) {
- if (priv->strict_readdir) {
- if (fd_ctx->failed_over) {
- if (list_empty (&entries->list)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no entries found");
- goto out;
- }
-
- offset = afr_filter_entries (entries, local->fd);
-
- afr_remember_entries (entries, local->fd);
-
- if (list_empty (&entries->list)) {
- /* All the entries we got were duplicate. We
- shouldn't send an empty list now, because
- that will make the application stop reading. So
- try to get more entries */
-
- gf_log (this->name, GF_LOG_TRACE,
- "trying to fetch non-duplicate entries "
- "from offset %"PRId64", child %s",
- offset, children[call_child]->name);
-
- STACK_WIND_COOKIE (frame, afr_readdirp_cbk,
- (void *) (long) read_child,
- children[call_child],
- children[call_child]->fops->readdirp,
- local->fd, local->cont.readdir.size, offset,
- local->cont.readdir.dict);
- return 0;
- }
- } else {
- afr_remember_entries (entries, local->fd);
- }
+ inode_unref (entry->inode);
+ entry->inode = NULL;
+ }
+ }
}
-
-out:
- AFR_STACK_UNWIND (readdirp, frame, op_ret, op_errno, entries, NULL);
-
- return 0;
}
+
int32_t
-afr_do_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset, int whichop, dict_t *dict)
+afr_readdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, gf_dirent_t *subvol_entries,
+ dict_t *xdata)
{
- afr_private_t * priv = NULL;
- xlator_t ** children = NULL;
- int call_child = 0;
- afr_local_t *local = NULL;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
- int ret = -1;
- int32_t op_errno = 0;
- uint64_t read_child = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- children = priv->children;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
+ afr_local_t *local = NULL;
+ gf_dirent_t entries;
+
+ INIT_LIST_HEAD (&entries.list);
+
local = frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ if (op_ret < 0 && !local->cont.readdir.offset) {
+ /* failover only if this was first readdir, detected
+ by offset == 0 */
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- read_child = afr_inode_get_read_ctx (this, fd->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.readdir.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ if (op_ret >= 0)
+ afr_readdir_transform_entries (subvol_entries, (long) cookie,
+ &entries, local->fd);
- local->fd = fd_ref (fd);
- local->cont.readdir.size = size;
- local->cont.readdir.dict = (dict)? dict_ref (dict) : NULL;
-
- if (priv->strict_readdir) {
- ret = fd_ctx_get (fd, this, &ctx);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_INFO,
- "could not get fd ctx for fd=%p", fd);
- op_errno = -ret;
- goto out;
- }
+ AFR_STACK_UNWIND (readdir, frame, op_ret, op_errno, &entries, xdata);
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+ return 0;
+}
- if (fd_ctx->last_tried != call_child) {
- gf_log (this->name, GF_LOG_TRACE,
- "first up child has changed from %d to %d, "
- "restarting readdir from offset 0",
- fd_ctx->last_tried, call_child);
- fd_ctx->failed_over = _gf_true;
- offset = 0;
- }
+int
+afr_readdir_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
- fd_ctx->last_tried = call_child;
- }
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (readdir, frame, local->op_ret,
+ local->op_errno, 0, 0);
+ return 0;
+ }
- if (whichop == GF_FOP_READDIR)
+ if (local->op == GF_FOP_READDIR)
STACK_WIND_COOKIE (frame, afr_readdir_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->readdir, fd,
- size, offset, dict);
+ (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->readdir,
+ local->fd, local->cont.readdir.size,
+ local->cont.readdir.offset,
+ local->xdata_req);
else
- STACK_WIND_COOKIE (frame, afr_readdirp_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->readdirp, fd,
- size, offset, dict);
+ STACK_WIND_COOKIE (frame, afr_readdir_cbk,
+ (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->readdirp,
+ local->fd, local->cont.readdir.size,
+ local->cont.readdir.offset,
+ local->xdata_req);
+ return 0;
+}
+
- ret = 0;
+int
+afr_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+ off_t offset, int whichop, dict_t *dict)
+{
+ afr_local_t *local = NULL;
+ int32_t op_errno = 0;
+ int subvol = -1;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ local->op = whichop;
+ local->fd = fd_ref (fd);
+ local->cont.readdir.size = size;
+ local->cont.readdir.offset = offset;
+ local->xdata_req = (dict)? dict_ref (dict) : NULL;
+
+ if (offset == 0) {
+ /* First readdir has option of failing over and selecting
+ an appropriate read subvolume */
+ afr_read_txn (frame, this, fd->inode, afr_readdir_wind,
+ AFR_DATA_TRANSACTION);
+ } else {
+ /* But continued readdirs MUST stick to the same subvolume
+ without an option to failover */
+ afr_deitransform (this, offset, &subvol,
+ (uint64_t *)&local->cont.readdir.offset);
+ afr_readdir_wind (frame, this, subvol);
+ }
+
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL);
return 0;
}
@@ -717,7 +403,8 @@ int32_t
afr_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
off_t offset, dict_t *xdata)
{
- afr_do_readdir (frame, this, fd, size, offset, GF_FOP_READDIR, xdata);
+ afr_do_readdir (frame, this, fd, size, offset, GF_FOP_READDIR, xdata);
+
return 0;
}
@@ -727,6 +414,7 @@ afr_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
off_t offset, dict_t *dict)
{
afr_do_readdir (frame, this, fd, size, offset, GF_FOP_READDIRP, dict);
+
return 0;
}
@@ -734,7 +422,6 @@ afr_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
int32_t
afr_releasedir (xlator_t *this, fd_t *fd)
{
- afr_forget_entries (fd);
afr_cleanup_fd_ctx (this, fd);
return 0;
diff --git a/xlators/cluster/afr/src/afr-dir-write.c b/xlators/cluster/afr/src/afr-dir-write.c
index b7e9bd874..465dde54f 100644
--- a/xlators/cluster/afr/src/afr-dir-write.c
+++ b/xlators/cluster/afr/src/afr-dir-write.c
@@ -34,10 +34,14 @@
#include "common-utils.h"
#include "compat-errno.h"
#include "compat.h"
+#include "byte-order.h"
#include "afr.h"
#include "afr-transaction.h"
+void
+afr_mark_entry_pending_changelog (call_frame_t *frame, xlator_t *this);
+
int
afr_build_parent_loc (loc_t *parent, loc_t *child, int32_t *op_errno)
{
@@ -56,49 +60,192 @@ afr_build_parent_loc (loc_t *parent, loc_t *child, int32_t *op_errno)
*op_errno = ENOMEM;
goto out;
}
- parent->path = dirname (child_path);
- parent->inode = inode_ref (child->parent);
- uuid_copy (parent->gfid, child->pargfid);
+
+ parent->path = gf_strdup (dirname (child_path));
+ if (!parent->path) {
+ if (op_errno)
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ parent->inode = inode_ref (child->parent);
+ uuid_copy (parent->gfid, child->pargfid);
ret = 0;
out:
+ GF_FREE (child_path);
+
return ret;
}
-/* {{{ create */
-int
-afr_create_unwind (call_frame_t *frame, xlator_t *this)
+static void
+__afr_dir_write_finalize (call_frame_t *frame, xlator_t *this)
{
- call_frame_t *main_frame = NULL;
- afr_local_t *local = NULL;
- struct iatt *unwind_buf = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int inode_read_subvol = -1;
+ int parent_read_subvol = -1;
+ int parent2_read_subvol = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (local->inode) {
+ afr_replies_interpret (frame, this, local->inode);
+ inode_read_subvol = afr_data_subvol_get (local->inode, this,
+ NULL, NULL);
+ }
+ if (local->parent)
+ parent_read_subvol = afr_data_subvol_get (local->parent, this,
+ NULL, NULL);
+ if (local->parent2)
+ parent2_read_subvol = afr_data_subvol_get (local->parent2, this,
+ NULL, NULL);
+
+ local->op_ret = -1;
+ local->op_errno = afr_final_errno (local, priv);
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].valid)
+ continue;
+ if (local->replies[i].op_ret < 0) {
+ if (local->inode)
+ afr_inode_read_subvol_reset (local->inode,
+ this);
+ if (local->parent)
+ afr_inode_read_subvol_reset (local->parent,
+ this);
+ if (local->parent2)
+ afr_inode_read_subvol_reset (local->parent2,
+ this);
+ continue;
+ }
+
+ if (local->op_ret == -1) {
+ local->op_ret = local->replies[i].op_ret;
+ local->op_errno = local->replies[i].op_errno;
+
+ local->cont.dir_fop.buf =
+ local->replies[i].poststat;
+ local->cont.dir_fop.preparent =
+ local->replies[i].preparent;
+ local->cont.dir_fop.postparent =
+ local->replies[i].postparent;
+ local->cont.dir_fop.prenewparent =
+ local->replies[i].preparent2;
+ local->cont.dir_fop.postnewparent =
+ local->replies[i].postparent2;
+ if (local->replies[i].xdata)
+ local->xdata_rsp =
+ dict_ref (local->replies[i].xdata);
+ continue;
+ }
+
+ if (i == inode_read_subvol) {
+ local->cont.dir_fop.buf =
+ local->replies[i].poststat;
+ if (local->replies[i].xdata) {
+ if (local->xdata_rsp)
+ dict_unref (local->xdata_rsp);
+ local->xdata_rsp =
+ dict_ref (local->replies[i].xdata);
+ }
+ }
+
+ if (i == parent_read_subvol) {
+ local->cont.dir_fop.preparent =
+ local->replies[i].preparent;
+ local->cont.dir_fop.postparent =
+ local->replies[i].postparent;
+ }
+
+ if (i == parent2_read_subvol) {
+ local->cont.dir_fop.prenewparent =
+ local->replies[i].preparent2;
+ local->cont.dir_fop.postnewparent =
+ local->replies[i].postparent2;
+ }
+ }
+}
+
+
+static void
+__afr_dir_write_fill (call_frame_t *frame, xlator_t *this, int child_index,
+ int op_ret, int op_errno, struct iatt *poststat,
+ struct iatt *preparent, struct iatt *postparent,
+ struct iatt *preparent2, struct iatt *postparent2,
+ dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ afr_fd_ctx_t *fd_ctx = NULL;
local = frame->local;
+ fd_ctx = local->fd_ctx;
+
+ local->replies[child_index].valid = 1;
+ local->replies[child_index].op_ret = op_ret;
+ local->replies[child_index].op_errno = op_errno;
+
+ if (op_ret >= 0) {
+ if (poststat)
+ local->replies[child_index].poststat = *poststat;
+ if (preparent)
+ local->replies[child_index].preparent = *preparent;
+ if (postparent)
+ local->replies[child_index].postparent = *postparent;
+ if (preparent2)
+ local->replies[child_index].preparent2 = *preparent2;
+ if (postparent2)
+ local->replies[child_index].postparent2 = *postparent2;
+ if (xdata)
+ local->replies[child_index].xdata = dict_ref (xdata);
+
+ if (fd_ctx)
+ fd_ctx->opened_on[child_index] = AFR_FD_OPENED;
+ } else {
+ if (op_errno != ENOTEMPTY)
+ afr_transaction_fop_failed (frame, this, child_index);
+ if (fd_ctx)
+ fd_ctx->opened_on[child_index] = AFR_FD_NOT_OPENED;
+ }
+
+ return;
+}
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- if (local->cont.create.read_child_buf.ia_ino) {
- unwind_buf = &local->cont.create.read_child_buf;
- } else {
- unwind_buf = &local->cont.create.buf;
- }
-
- AFR_STACK_UNWIND (create, main_frame,
- local->op_ret, local->op_errno,
- local->cont.create.fd,
- local->cont.create.inode,
- unwind_buf, &local->cont.create.preparent,
- &local->cont.create.postparent,
- NULL);
+
+static int
+__afr_dir_write_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, struct iatt *buf,
+ struct iatt *preparent, struct iatt *postparent,
+ struct iatt *preparent2, struct iatt *postparent2,
+ dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int child_index = (long) cookie;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ __afr_dir_write_fill (frame, this, child_index, op_ret,
+ op_errno, buf, preparent, postparent,
+ preparent2, postparent2, xdata);
+ }
+ UNLOCK (&frame->lock);
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ __afr_dir_write_finalize (frame, this);
+
+ if (afr_txn_nothing_failed (frame, this))
+ local->transaction.unwind (frame, this);
+
+ afr_mark_entry_pending_changelog (frame, this);
+
+ local->transaction.resume (frame, this);
}
return 0;
@@ -106,205 +253,236 @@ afr_create_unwind (call_frame_t *frame, xlator_t *this)
int
-afr_create_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- fd_t *fd, inode_t *inode, struct iatt *buf,
- struct iatt *preparent, struct iatt *postparent,
- dict_t *xdata)
+afr_mark_new_entry_changelog_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int op_ret, int op_errno,
+ dict_t *xattr, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- uint64_t ctx = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
- int ret = 0;
- int call_count = -1;
- int child_index = -1;
- int32_t *fresh_children = NULL;
+ int call_count = 0;
- local = frame->local;
- priv = this->private;
+ call_count = afr_frame_return (frame);
- child_index = (long) cookie;
+ if (call_count == 0)
+ AFR_STACK_DESTROY (frame);
- LOCK (&frame->lock);
- {
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
+ return 0;
+}
- if (op_ret != -1) {
- local->op_ret = op_ret;
- ret = afr_fd_ctx_set (this, fd);
+void
+afr_mark_new_entry_changelog (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *new_frame = NULL;
+ afr_local_t *local = NULL;
+ afr_local_t *new_local = NULL;
+ afr_private_t *priv = NULL;
+ dict_t *xattr = NULL;
+ int32_t **changelog = NULL;
+ int i = 0;
+ int idx = 0;
+ int op_errno = ENOMEM;
+ unsigned char *pending = NULL;
+ int call_count = 0;
- if (ret < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "could not set ctx on fd=%p", fd);
+ local = frame->local;
+ priv = this->private;
- local->op_ret = -1;
- local->op_errno = -ret;
- goto unlock;
- }
+ new_frame = copy_frame (frame);
+ if (!new_frame)
+ goto out;
- ret = fd_ctx_get (fd, this, &ctx);
+ new_local = AFR_FRAME_INIT (new_frame, op_errno);
+ if (!new_local)
+ goto out;
- if (ret < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "could not get fd ctx for fd=%p", fd);
- local->op_ret = -1;
- local->op_errno = -ret;
- goto unlock;
- }
+ changelog = afr_matrix_create (priv->child_count, AFR_NUM_CHANGE_LOGS);
+ if (!changelog)
+ goto out;
- fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+ xattr = dict_new ();
+ if (!xattr)
+ goto out;
- fd_ctx->opened_on[child_index] = AFR_FD_OPENED;
- fd_ctx->flags = local->cont.create.flags;
+ idx = afr_index_for_transaction_type (AFR_DATA_TRANSACTION);
- if (local->success_count == 0)
- local->cont.create.buf = *buf;
+ pending = alloca0 (priv->child_count);
- if (child_index == local->read_child_index) {
- local->cont.create.read_child_buf = *buf;
- local->cont.create.preparent = *preparent;
- local->cont.create.postparent = *postparent;
- }
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->transaction.pre_op[i] &&
+ !local->transaction.failed_subvols[i]) {
+ call_count ++;
+ continue;
+ }
- local->cont.create.inode = inode;
+ changelog[i][idx] = hton32(1);
+ pending[i] = 1;
+ }
- fresh_children = local->fresh_children;
- fresh_children[local->success_count] = child_index;
- local->success_count++;
- }
+ new_local->pending = changelog;
+ uuid_copy (new_local->loc.gfid, local->cont.dir_fop.buf.ia_gfid);
+ new_local->loc.inode = inode_ref (local->inode);
- local->op_errno = op_errno;
- }
-unlock:
- UNLOCK (&frame->lock);
+ afr_set_pending_dict (priv, xattr, changelog);
- call_count = afr_frame_return (frame);
+ new_local->call_count = call_count;
- if (call_count == 0) {
- afr_set_read_ctx_from_policy (this, inode,
- local->fresh_children,
- local->read_child_index,
- priv->read_child);
- local->transaction.unwind (frame, this);
+ for (i = 0; i < priv->child_count; i++) {
+ if (pending[i])
+ continue;
- local->transaction.resume (frame, this);
+ STACK_WIND_COOKIE (new_frame, afr_mark_new_entry_changelog_cbk,
+ (void *) (long) i, priv->children[i],
+ priv->children[i]->fops->xattrop,
+ &new_local->loc, GF_XATTROP_ADD_ARRAY,
+ xattr, NULL);
+ if (!--call_count)
+ break;
}
- return 0;
+ new_frame = NULL;
+out:
+ if (new_frame)
+ AFR_STACK_DESTROY (new_frame);
+ if (xattr)
+ dict_unref (xattr);
+ return;
}
-int
-afr_create_wind (call_frame_t *frame, xlator_t *this)
+void
+afr_mark_entry_pending_changelog (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
+ int pre_op_count = 0;
+ int failed_count = 0;
local = frame->local;
- priv = this->private;
+ priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
+ if (local->op_ret < 0)
+ return;
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
+ if (local->op != GF_FOP_CREATE && local->op != GF_FOP_MKNOD)
+ return;
- local->call_count = call_count;
+ pre_op_count = AFR_COUNT (local->transaction.pre_op, priv->child_count);
+ failed_count = AFR_COUNT (local->transaction.failed_subvols,
+ priv->child_count);
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_create_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->create,
- &local->loc,
- local->cont.create.flags,
- local->cont.create.mode,
- local->umask,
- local->cont.create.fd,
- local->xdata_req);
- if (!--call_count)
- break;
- }
- }
+ if (pre_op_count == priv->child_count && !failed_count)
+ return;
- return 0;
+ afr_mark_new_entry_changelog (frame, this);
+
+ return;
}
+/* {{{ create */
+
int
-afr_create_done (call_frame_t *frame, xlator_t *this)
+afr_create_unwind (call_frame_t *frame, xlator_t *this)
{
- afr_local_t * local = NULL;
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
local = frame->local;
- local->transaction.unwind (frame, this);
+ main_frame = afr_transaction_detach_fop_frame (frame);
- AFR_STACK_DESTROY (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (create, main_frame, local->op_ret, local->op_errno,
+ local->cont.create.fd, local->inode,
+ &local->cont.dir_fop.buf,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
int
-afr_create (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags, mode_t mode,
- mode_t umask, fd_t *fd, dict_t *params)
+afr_create_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ fd_t *fd, inode_t *inode, struct iatt *buf,
+ struct iatt *preparent, struct iatt *postparent,
+ dict_t *xdata)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- call_frame_t *transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preparent, postparent, NULL, NULL, xdata);
+}
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+
+int
+afr_create_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ STACK_WIND_COOKIE (frame, afr_create_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->create,
+ &local->loc, local->cont.create.flags,
+ local->cont.create.mode, local->umask,
+ local->cont.create.fd, local->xdata_req);
+ return 0;
+}
+
+
+int
+afr_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+ mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(create,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, loc);
- LOCK (&priv->read_child_lock);
- {
- local->read_child_index = (++priv->read_child_rr)
- % (priv->child_count);
- }
- UNLOCK (&priv->read_child_lock);
+ local->fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!local->fd_ctx)
+ goto out;
+
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
+ local->op = GF_FOP_CREATE;
local->cont.create.flags = flags;
local->cont.create.mode = mode;
local->cont.create.fd = fd_ref (fd);
local->umask = umask;
- if (params)
- local->xdata_req = dict_ref (params);
- local->transaction.fop = afr_create_wind;
- local->transaction.done = afr_create_done;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->transaction.wind = afr_create_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_create_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, loc,
@@ -314,18 +492,30 @@ afr_create (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ int_lock->lockee_count = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[0], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (create, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+ NULL, NULL);
return 0;
}
@@ -338,34 +528,17 @@ afr_mknod_unwind (call_frame_t *frame, xlator_t *this)
{
call_frame_t *main_frame = NULL;
afr_local_t *local = NULL;
- struct iatt *unwind_buf = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- if (local->cont.mknod.read_child_buf.ia_ino) {
- unwind_buf = &local->cont.mknod.read_child_buf;
- } else {
- unwind_buf = &local->cont.mknod.buf;
- }
-
- AFR_STACK_UNWIND (mknod, main_frame,
- local->op_ret, local->op_errno,
- local->cont.mknod.inode,
- unwind_buf, &local->cont.mknod.preparent,
- &local->cont.mknod.postparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (mknod, main_frame, local->op_ret, local->op_errno,
+ local->inode, &local->cont.dir_fop.buf,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
@@ -376,162 +549,72 @@ afr_mknod_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *buf, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int child_index = -1;
- int32_t *fresh_children = NULL;
-
- local = frame->local;
- priv = this->private;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if (local->success_count == 0)
- local->cont.mknod.buf = *buf;
-
- if (child_index == local->read_child_index) {
- local->cont.mknod.read_child_buf = *buf;
- local->cont.mknod.preparent = *preparent;
- local->cont.mknod.postparent = *postparent;
- }
-
- local->cont.mknod.inode = inode;
-
- fresh_children = local->fresh_children;
- fresh_children[local->success_count] = child_index;
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- afr_set_read_ctx_from_policy (this, inode,
- local->fresh_children,
- local->read_child_index,
- priv->read_child);
- local->transaction.unwind (frame, this);
-
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preparent, postparent, NULL, NULL, xdata);
}
-int32_t
-afr_mknod_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_mknod_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_mknod_wind_cbk, (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->mknod,
- &local->loc, local->cont.mknod.mode,
- local->cont.mknod.dev,
- local->umask,
- local->xdata_req);
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_mknod_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->mknod,
+ &local->loc, local->cont.mknod.mode,
+ local->cont.mknod.dev, local->umask,
+ local->xdata_req);
return 0;
}
-
-int
-afr_mknod_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t * local = NULL;
-
- local = frame->local;
-
- local->transaction.unwind (frame, this);
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-
int
afr_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
- dev_t dev, mode_t umask, dict_t *params)
+ dev_t dev, mode_t umask, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(mknod,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
- LOCK (&priv->read_child_lock);
- {
- local->read_child_index = (++priv->read_child_rr)
- % (priv->child_count);
- }
- UNLOCK (&priv->read_child_lock);
-
+ local->op = GF_FOP_MKNOD;
local->cont.mknod.mode = mode;
local->cont.mknod.dev = dev;
local->umask = umask;
- if (params)
- local->xdata_req = dict_ref (params);
- local->transaction.fop = afr_mknod_wind;
- local->transaction.done = afr_mknod_done;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->transaction.wind = afr_mknod_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_mknod_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, loc,
@@ -541,18 +624,30 @@ afr_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ int_lock->lockee_count = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[0], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (mknod, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (mknod, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+ NULL);
return 0;
}
@@ -566,34 +661,17 @@ afr_mkdir_unwind (call_frame_t *frame, xlator_t *this)
{
call_frame_t *main_frame = NULL;
afr_local_t *local = NULL;
- struct iatt *unwind_buf = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- if (local->cont.mkdir.read_child_buf.ia_ino) {
- unwind_buf = &local->cont.mkdir.read_child_buf;
- } else {
- unwind_buf = &local->cont.mkdir.buf;
- }
-
- AFR_STACK_UNWIND (mkdir, main_frame,
- local->op_ret, local->op_errno,
- local->cont.mkdir.inode,
- unwind_buf, &local->cont.mkdir.preparent,
- &local->cont.mkdir.postparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (mkdir, main_frame, local->op_ret, local->op_errno,
+ local->inode, &local->cont.dir_fop.buf,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
@@ -604,162 +682,71 @@ afr_mkdir_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *buf, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int child_index = -1;
- int32_t *fresh_children = NULL;
-
- local = frame->local;
- priv = this->private;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if (local->success_count == 0)
- local->cont.mkdir.buf = *buf;
-
- if (child_index == local->read_child_index) {
- local->cont.mkdir.read_child_buf = *buf;
- local->cont.mkdir.preparent = *preparent;
- local->cont.mkdir.postparent = *postparent;
- }
-
- local->cont.mkdir.inode = inode;
-
- fresh_children = local->fresh_children;
- fresh_children[local->success_count] = child_index;
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- afr_set_read_ctx_from_policy (this, inode,
- local->fresh_children,
- local->read_child_index,
- priv->read_child);
- local->transaction.unwind (frame, this);
-
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preparent, postparent, NULL, NULL, xdata);
}
int
-afr_mkdir_wind (call_frame_t *frame, xlator_t *this)
+afr_mkdir_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_mkdir_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->mkdir,
- &local->loc, local->cont.mkdir.mode,
- local->umask,
- local->xdata_req);
- if (!--call_count)
- break;
- }
- }
-
- return 0;
-}
-
-
-int
-afr_mkdir_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t * local = NULL;
-
- local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
+ STACK_WIND_COOKIE (frame, afr_mkdir_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->mkdir, &local->loc,
+ local->cont.mkdir.mode, local->umask,
+ local->xdata_req);
return 0;
}
int
-afr_mkdir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, mode_t umask, dict_t *params)
+afr_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode,
+ mode_t umask, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(mkdir,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, loc);
-
- LOCK (&priv->read_child_lock);
- {
- local->read_child_index = (++priv->read_child_rr)
- % (priv->child_count);
- }
- UNLOCK (&priv->read_child_lock);
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
local->cont.mkdir.mode = mode;
local->umask = umask;
- if (params)
- local->xdata_req = dict_ref (params);
- local->transaction.fop = afr_mkdir_wind;
- local->transaction.done = afr_mkdir_done;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->op = GF_FOP_MKDIR;
+ local->transaction.wind = afr_mkdir_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_mkdir_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, loc,
@@ -769,19 +756,30 @@ afr_mkdir (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ int_lock->lockee_count = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[0], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
-
- AFR_STACK_UNWIND (mkdir, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (mkdir, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+ NULL);
return 0;
}
@@ -795,34 +793,17 @@ afr_link_unwind (call_frame_t *frame, xlator_t *this)
{
call_frame_t *main_frame = NULL;
afr_local_t *local = NULL;
- struct iatt *unwind_buf = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- if (local->cont.link.read_child_buf.ia_ino) {
- unwind_buf = &local->cont.link.read_child_buf;
- } else {
- unwind_buf = &local->cont.link.buf;
- }
-
- AFR_STACK_UNWIND (link, main_frame,
- local->op_ret, local->op_errno,
- local->cont.link.inode,
- unwind_buf, &local->cont.link.preparent,
- &local->cont.link.postparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (link, main_frame, local->op_ret, local->op_errno,
+ local->inode, &local->cont.dir_fop.buf,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
@@ -833,158 +814,70 @@ afr_link_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *buf, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int child_index = -1;
- int32_t *fresh_children = NULL;
-
- local = frame->local;
- priv = this->private;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if (local->success_count == 0) {
- local->cont.link.buf = *buf;
- }
-
- if (child_index == local->read_child_index) {
- local->cont.link.read_child_buf = *buf;
- local->cont.link.preparent = *preparent;
- local->cont.link.postparent = *postparent;
- }
-
- local->cont.link.inode = inode;
-
- fresh_children = local->fresh_children;
- fresh_children[local->success_count] = child_index;
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- afr_set_read_ctx_from_policy (this, inode,
- local->fresh_children,
- local->read_child_index,
- priv->read_child);
- local->transaction.unwind (frame, this);
-
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preparent, postparent, NULL, NULL, xdata);
}
int
-afr_link_wind (call_frame_t *frame, xlator_t *this)
+afr_link_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_link_wind_cbk, (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->link,
- &local->loc,
- &local->newloc, local->xdata_req);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_link_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->link,
+ &local->loc, &local->newloc, local->xdata_req);
return 0;
}
int
-afr_link_done (call_frame_t *frame, xlator_t *this)
+afr_link (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc,
+ dict_t *xdata)
{
- afr_local_t * local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-
-int
-afr_link (call_frame_t *frame, xlator_t *this,
- loc_t *oldloc, loc_t *newloc, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(link,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, oldloc);
loc_copy (&local->newloc, newloc);
+
+ local->inode = inode_ref (oldloc->inode);
+ local->parent = inode_ref (newloc->parent);
+
if (xdata)
- local->xdata_req = dict_ref (xdata);
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- LOCK (&priv->read_child_lock);
- {
- local->read_child_index = (++priv->read_child_rr)
- % (priv->child_count);
- }
- UNLOCK (&priv->read_child_lock);
+ if (!local->xdata_req)
+ goto out;
+
+ local->op = GF_FOP_LINK;
- local->transaction.fop = afr_link_wind;
- local->transaction.done = afr_link_done;
+ local->transaction.wind = afr_link_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_link_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, newloc,
@@ -994,18 +887,30 @@ afr_link (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (newloc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ int_lock->lockee_count = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[0], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (link, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (link, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+ NULL);
return 0;
}
@@ -1019,34 +924,17 @@ afr_symlink_unwind (call_frame_t *frame, xlator_t *this)
{
call_frame_t *main_frame = NULL;
afr_local_t *local = NULL;
- struct iatt *unwind_buf = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- if (local->cont.symlink.read_child_buf.ia_ino) {
- unwind_buf = &local->cont.symlink.read_child_buf;
- } else {
- unwind_buf = &local->cont.symlink.buf;
- }
-
- AFR_STACK_UNWIND (symlink, main_frame,
- local->op_ret, local->op_errno,
- local->cont.symlink.inode,
- unwind_buf, &local->cont.symlink.preparent,
- &local->cont.symlink.postparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (symlink, main_frame, local->op_ret, local->op_errno,
+ local->inode, &local->cont.dir_fop.buf,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
@@ -1057,163 +945,71 @@ afr_symlink_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *buf, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int child_index = -1;
- int32_t *fresh_children = NULL;
-
- local = frame->local;
- priv = this->private;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if (local->success_count == 0)
- local->cont.symlink.buf = *buf;
-
- if (child_index == local->read_child_index) {
- local->cont.symlink.read_child_buf = *buf;
- local->cont.symlink.preparent = *preparent;
- local->cont.symlink.postparent = *postparent;
- }
-
- local->cont.symlink.inode = inode;
-
- fresh_children = local->fresh_children;
- fresh_children[local->success_count] = child_index;
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- afr_set_read_ctx_from_policy (this, inode,
- local->fresh_children,
- local->read_child_index,
- priv->read_child);
- local->transaction.unwind (frame, this);
-
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preparent, postparent, NULL, NULL, xdata);
}
int
-afr_symlink_wind (call_frame_t *frame, xlator_t *this)
+afr_symlink_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_symlink_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->symlink,
- local->cont.symlink.linkpath,
- &local->loc,
- local->umask,
- local->xdata_req);
-
- if (!--call_count)
- break;
-
- }
- }
-
- return 0;
-}
-
-
-int
-afr_symlink_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t * local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
+ STACK_WIND_COOKIE (frame, afr_symlink_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->symlink,
+ local->cont.symlink.linkpath, &local->loc,
+ local->umask, local->xdata_req);
return 0;
}
int
-afr_symlink (call_frame_t *frame, xlator_t *this,
- const char *linkpath, loc_t *loc, mode_t umask, dict_t *params)
+afr_symlink (call_frame_t *frame, xlator_t *this, const char *linkpath,
+ loc_t *loc, mode_t umask, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(symlink,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, loc);
-
- LOCK (&priv->read_child_lock);
- {
- local->read_child_index = (++priv->read_child_rr)
- % (priv->child_count);
- }
- UNLOCK (&priv->read_child_lock);
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
local->cont.symlink.linkpath = gf_strdup (linkpath);
local->umask = umask;
- if (params)
- local->xdata_req = dict_ref (params);
- local->transaction.fop = afr_symlink_wind;
- local->transaction.done = afr_symlink_done;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->op = GF_FOP_SYMLINK;
+ local->transaction.wind = afr_symlink_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_symlink_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, loc,
@@ -1223,18 +1019,30 @@ afr_symlink (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ int_lock->lockee_count = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[0], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
- if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (symlink, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL);
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (symlink, frame, -1, op_errno, NULL, NULL, NULL,
+ NULL, NULL);
return 0;
}
@@ -1247,36 +1055,19 @@ afr_rename_unwind (call_frame_t *frame, xlator_t *this)
{
call_frame_t *main_frame = NULL;
afr_local_t *local = NULL;
- struct iatt *unwind_buf = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- if (local->cont.rename.read_child_buf.ia_ino) {
- unwind_buf = &local->cont.rename.read_child_buf;
- } else {
- unwind_buf = &local->cont.rename.buf;
- }
-
- AFR_STACK_UNWIND (rename, main_frame,
- local->op_ret, local->op_errno,
- unwind_buf,
- &local->cont.rename.preoldparent,
- &local->cont.rename.postoldparent,
- &local->cont.rename.prenewparent,
- &local->cont.rename.postnewparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (rename, main_frame, local->op_ret, local->op_errno,
+ &local->cont.dir_fop.buf,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent,
+ &local->cont.dir_fop.prenewparent,
+ &local->cont.dir_fop.postnewparent, local->xdata_rsp);
return 0;
}
@@ -1288,144 +1079,72 @@ afr_rename_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *prenewparent, struct iatt *postnewparent,
dict_t *xdata)
{
- afr_local_t * local = NULL;
- int call_count = -1;
- int child_index = -1;
-
- local = frame->local;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (afr_fop_failed (op_ret, op_errno) && op_errno != ENOTEMPTY)
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
-
- if (buf) {
- local->cont.rename.buf = *buf;
- }
-
- local->success_count++;
- }
-
- if (child_index == local->read_child_index) {
- local->cont.rename.read_child_buf = *buf;
-
- local->cont.rename.preoldparent = *preoldparent;
- local->cont.rename.postoldparent = *postoldparent;
- local->cont.rename.prenewparent = *prenewparent;
- local->cont.rename.postnewparent = *postnewparent;
- }
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.unwind (frame, this);
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preoldparent, postoldparent, prenewparent,
+ postnewparent, xdata);
}
-int32_t
-afr_rename_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_rename_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
-
- local = frame->local;
- priv = this->private;
-
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_rename_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->rename,
- &local->loc,
- &local->newloc, NULL);
- if (!--call_count)
- break;
- }
- }
-
- return 0;
-}
-
-
-int
-afr_rename_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t * local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
+ local = frame->local;
+ priv = this->private;
+ STACK_WIND_COOKIE (frame, afr_rename_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->rename,
+ &local->loc, &local->newloc, local->xdata_req);
return 0;
}
int
-afr_rename (call_frame_t *frame, xlator_t *this,
- loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+afr_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc,
+ dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
+ int nlockee = 0;
priv = this->private;
QUORUM_CHECK(rename,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
+ if (!transaction_frame)
op_errno = ENOMEM;
- goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, oldloc);
loc_copy (&local->newloc, newloc);
- local->read_child_index = afr_inode_get_read_ctx (this, oldloc->inode, NULL);
+ local->inode = inode_ref (oldloc->inode);
+ local->parent = inode_ref (oldloc->parent);
+ local->parent2 = inode_ref (newloc->parent);
+
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- local->transaction.fop = afr_rename_wind;
- local->transaction.done = afr_rename_done;
+ if (!local->xdata_req)
+ goto out;
+
+ local->op = GF_FOP_RENAME;
+ local->transaction.wind = afr_rename_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_rename_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, oldloc,
@@ -1440,19 +1159,52 @@ afr_rename (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (oldloc->path);
local->transaction.new_basename = AFR_BASENAME (newloc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_RENAME_TRANSACTION);
+ int_lock->lockee_count = nlockee = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[nlockee], local,
+ &local->transaction.new_parent_loc,
+ local->transaction.new_basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
- if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
+ nlockee++;
+ ret = afr_init_entry_lockee (&int_lock->lockee[nlockee], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
+
+ nlockee++;
+ if (local->newloc.inode && IA_ISDIR (local->newloc.inode->ia_type)) {
+ ret = afr_init_entry_lockee (&int_lock->lockee[nlockee], local,
+ &local->newloc,
+ NULL,
+ priv->child_count);
+ if (ret)
+ goto out;
+
+ nlockee++;
+ }
+ qsort (int_lock->lockee, nlockee, sizeof (*int_lock->lockee),
+ afr_entry_lockee_cmp);
+ int_lock->lockee_count = nlockee;
- AFR_STACK_UNWIND (rename, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL, NULL);
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_RENAME_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (rename, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+ NULL, NULL);
return 0;
}
@@ -1468,23 +1220,13 @@ afr_unlink_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- AFR_STACK_UNWIND (unlink, main_frame,
- local->op_ret, local->op_errno,
- &local->cont.unlink.preparent,
- &local->cont.unlink.postparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (unlink, main_frame, local->op_ret, local->op_errno,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
@@ -1494,142 +1236,69 @@ afr_unlink_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
- afr_local_t * local = NULL;
- int call_count = -1;
- int child_index = (long) cookie;
-
- local = frame->local;
-
- LOCK (&frame->lock);
- {
- if (child_index == local->read_child_index) {
- local->read_child_returned = _gf_true;
- }
-
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.unlink.preparent = *preparent;
- local->cont.unlink.postparent = *postparent;
- }
-
- if (child_index == local->read_child_index) {
- local->cont.unlink.preparent = *preparent;
- local->cont.unlink.postparent = *postparent;
- }
-
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.unwind (frame, this);
-
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, NULL,
+ preparent, postparent, NULL, NULL, xdata);
}
-int32_t
-afr_unlink_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_unlink_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_unlink_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->unlink,
- &local->loc, local->xflag,
- local->xdata_req);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_unlink_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->unlink,
+ &local->loc, local->xflag, local->xdata_req);
return 0;
}
-int32_t
-afr_unlink_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t * local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-
-int32_t
-afr_unlink (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int xflag, dict_t *xdata)
+int
+afr_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag,
+ dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(unlink,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
loc_copy (&local->loc, loc);
local->xflag = xflag;
+
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
+
if (xdata)
- local->xdata_req = dict_ref (xdata);
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
- local->transaction.fop = afr_unlink_wind;
- local->transaction.done = afr_unlink_done;
+ local->op = GF_FOP_UNLINK;
+ local->transaction.wind = afr_unlink_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_unlink_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, loc,
@@ -1639,18 +1308,29 @@ afr_unlink (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ int_lock->lockee_count = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[0], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (unlink, frame, -1, op_errno,
- NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (unlink, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
@@ -1668,23 +1348,13 @@ afr_rmdir_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- AFR_STACK_UNWIND (rmdir, main_frame,
- local->op_ret, local->op_errno,
- &local->cont.rmdir.preparent,
- &local->cont.rmdir.postparent,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (rmdir, main_frame, local->op_ret, local->op_errno,
+ &local->cont.dir_fop.preparent,
+ &local->cont.dir_fop.postparent, local->xdata_rsp);
return 0;
}
@@ -1694,141 +1364,71 @@ afr_rmdir_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
- afr_local_t * local = NULL;
- int call_count = -1;
- int child_index = (long) cookie;
- int read_child = 0;
-
- local = frame->local;
-
- LOCK (&frame->lock);
- {
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
-
- if (afr_fop_failed (op_ret, op_errno) && (op_errno != ENOTEMPTY))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.rmdir.preparent = *preparent;
- local->cont.rmdir.postparent = *postparent;
-
- }
-
- if (child_index == read_child) {
- local->cont.rmdir.preparent = *preparent;
- local->cont.rmdir.postparent = *postparent;
- }
-
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.unwind (frame, this);
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, NULL,
+ preparent, postparent, NULL, NULL, xdata);
}
int
-afr_rmdir_wind (call_frame_t *frame, xlator_t *this)
+afr_rmdir_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_rmdir_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->rmdir,
- &local->loc, local->cont.rmdir.flags,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_rmdir_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->rmdir,
+ &local->loc, local->cont.rmdir.flags, local->xdata_req);
return 0;
}
int
-afr_rmdir_done (call_frame_t *frame, xlator_t *this)
+afr_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc, int flags,
+ dict_t *xdata)
{
- afr_local_t * local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-
-int
-afr_rmdir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int flags, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
+ int nlockee = 0;
priv = this->private;
QUORUM_CHECK(rmdir,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
- local->cont.rmdir.flags = flags;
loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
+
+ local->cont.rmdir.flags = flags;
+
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
- local->transaction.fop = afr_rmdir_wind;
- local->transaction.done = afr_rmdir_done;
+ local->op = GF_FOP_RMDIR;
+ local->transaction.wind = afr_rmdir_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_rmdir_unwind;
ret = afr_build_parent_loc (&local->transaction.parent_loc, loc,
@@ -1838,17 +1438,41 @@ afr_rmdir (call_frame_t *frame, xlator_t *this,
local->transaction.main_frame = frame;
local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
+
+ int_lock->lockee_count = nlockee = 0;
+ ret = afr_init_entry_lockee (&int_lock->lockee[nlockee], local,
+ &local->transaction.parent_loc,
+ local->transaction.basename,
+ priv->child_count);
+ if (ret)
+ goto out;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ nlockee++;
+ ret = afr_init_entry_lockee (&int_lock->lockee[nlockee], local,
+ &local->loc,
+ NULL,
+ priv->child_count);
+ if (ret)
+ goto out;
- ret = 0;
-out:
+ nlockee++;
+ qsort (int_lock->lockee, nlockee, sizeof (*int_lock->lockee),
+ afr_entry_lockee_cmp);
+ int_lock->lockee_count = nlockee;
+
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (rmdir, frame, -1, op_errno, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (rmdir, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
diff --git a/xlators/cluster/afr/src/afr-inode-read.c b/xlators/cluster/afr/src/afr-inode-read.c
index 40e5abd3a..01e078c13 100644
--- a/xlators/cluster/afr/src/afr-inode-read.c
+++ b/xlators/cluster/afr/src/afr-inode-read.c
@@ -35,237 +35,153 @@
#include "compat-errno.h"
#include "compat.h"
-/**
- * Common algorithm for inode read calls:
- *
- * - Try the fop on the first child that is up
- * - if we have failed due to ENOTCONN:
- * try the next child
- *
- * Applicable to: access, stat, fstat, readlink, getxattr
- */
+#include "afr-transaction.h"
+
/* {{{ access */
-int32_t
-afr_access_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+int
+afr_access_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
+ afr_local_t *local = NULL;
local = frame->local;
- read_child = (long) cookie;
-
- if (op_ret == -1) {
- last_index = &local->cont.access.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- STACK_WIND_COOKIE (frame, afr_access_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->access,
- &local->loc, local->cont.access.mask,
- NULL);
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
-out:
- if (unwind) {
- AFR_STACK_UNWIND (access, frame, op_ret, op_errno, xdata);
- }
+ AFR_STACK_UNWIND (access, frame, op_ret, op_errno, xdata);
return 0;
}
-int32_t
-afr_access (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask,
- dict_t *xdata)
+int
+afr_access_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- afr_private_t *priv = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- afr_local_t *local = NULL;
- int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
-
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (access, frame, local->op_ret,
+ local->op_errno, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_access_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->access,
+ &local->loc, local->cont.access.mask,
+ local->xdata_req);
+ return 0;
+}
+int
+afr_access (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ int mask, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int op_errno = 0;
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.access.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- loc_copy (&local->loc, loc);
- local->cont.access.mask = mask;
+ local->op = GF_FOP_ACCESS;
+ loc_copy (&local->loc, loc);
+ local->cont.access.mask = mask;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- STACK_WIND_COOKIE (frame, afr_access_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->access,
- loc, mask, xdata);
+ afr_read_txn (frame, this, loc->inode, afr_access_wind,
+ AFR_METADATA_TRANSACTION);
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (access, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (access, frame, -1, op_errno, NULL);
+
return 0;
}
-
/* }}} */
/* {{{ stat */
-int32_t
+int
afr_stat_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
struct iatt *buf, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
-
- read_child = (long) cookie;
+ afr_local_t *local = NULL;
local = frame->local;
- if (op_ret == -1) {
- last_index = &local->cont.stat.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- STACK_WIND_COOKIE (frame, afr_stat_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->stat,
- &local->loc, NULL);
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
-out:
- if (unwind) {
- AFR_STACK_UNWIND (stat, frame, op_ret, op_errno, buf, xdata);
- }
+ AFR_STACK_UNWIND (stat, frame, op_ret, op_errno, buf, xdata);
return 0;
}
-int32_t
-afr_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+int
+afr_stat_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (stat, frame, local->op_ret, local->op_errno,
+ 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_stat_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->stat,
+ &local->loc, local->xdata_req);
+ return 0;
+}
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+int
+afr_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int op_errno = 0;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ local->op = GF_FOP_STAT;
+ loc_copy (&local->loc, loc);
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.stat.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
- loc_copy (&local->loc, loc);
-
- STACK_WIND_COOKIE (frame, afr_stat_cbk, (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->stat,
- loc, xdata);
+ afr_read_txn (frame, this, loc->inode, afr_stat_wind,
+ AFR_DATA_TRANSACTION);
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (stat, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (stat, frame, -1, op_errno, NULL, NULL);
return 0;
}
@@ -275,52 +191,49 @@ out:
/* {{{ fstat */
-int32_t
+int
afr_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *buf,
dict_t *xdata)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- xlator_t **children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
+ afr_local_t *local = NULL;
local = frame->local;
- read_child = (long) cookie;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- if (op_ret == -1) {
- last_index = &local->cont.fstat.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- unwind = 0;
+ AFR_STACK_UNWIND (fstat, frame, op_ret, op_errno, buf, xdata);
- STACK_WIND_COOKIE (frame, afr_fstat_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->fstat,
- local->fd, NULL);
- }
+ return 0;
+}
-out:
- if (unwind) {
- AFR_STACK_UNWIND (fstat, frame, op_ret, op_errno, buf, xdata);
- }
- return 0;
+int
+afr_fstat_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (fstat, frame, local->op_ret, local->op_errno,
+ 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_fstat_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fstat,
+ local->fd, local->xdata_req);
+ return 0;
}
@@ -328,69 +241,26 @@ int32_t
afr_fstat (call_frame_t *frame, xlator_t *this,
fd_t *fd, dict_t *xdata)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- int32_t op_errno = 0;
- int32_t read_child = 0;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
+ afr_local_t *local = NULL;
+ int op_errno = 0;
- children = priv->children;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- VALIDATE_OR_GOTO (fd->inode, out);
+ local->op = GF_FOP_FSTAT;
+ local->fd = fd_ref (fd);
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ afr_fix_open (fd, this);
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ afr_read_txn (frame, this, fd->inode, afr_fstat_wind,
+ AFR_DATA_TRANSACTION);
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
-
- read_child = afr_inode_get_read_ctx (this, fd->inode,
- local->fresh_children);
-
-
-
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.fstat.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
-
- local->fd = fd_ref (fd);
-
- ret = afr_open_fd_fix (frame, this, _gf_false);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
- STACK_WIND_COOKIE (frame, afr_fstat_cbk, (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->fstat,
- fd, xdata);
-
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL);
return 0;
}
@@ -399,115 +269,77 @@ out:
/* {{{ readlink */
-int32_t
+int
afr_readlink_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
const char *buf, struct iatt *sbuf, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
+ afr_local_t *local = NULL;
- priv = this->private;
- children = priv->children;
+ local = frame->local;
- local = frame->local;
-
- read_child = (long) cookie;
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
- if (op_ret == -1) {
- last_index = &local->cont.readlink.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
- STACK_WIND_COOKIE (frame, afr_readlink_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->readlink,
- &local->loc,
- local->cont.readlink.size, NULL);
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
-out:
- if (unwind) {
- AFR_STACK_UNWIND (readlink, frame, op_ret, op_errno, buf, sbuf,
- xdata);
- }
+ AFR_STACK_UNWIND (readlink, frame, op_ret, op_errno,
+ buf, sbuf, xdata);
+ return 0;
+}
- return 0;
+int
+afr_readlink_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (readlink, frame, local->op_ret,
+ local->op_errno, 0, 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_readlink_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->readlink,
+ &local->loc, local->cont.readlink.size,
+ local->xdata_req);
+ return 0;
}
-int32_t
+int
afr_readlink (call_frame_t *frame, xlator_t *this,
loc_t *loc, size_t size, dict_t *xdata)
{
- afr_private_t *priv = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- afr_local_t *local = NULL;
+ afr_local_t * local = NULL;
int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.readlink.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+ local->op = GF_FOP_READLINK;
loc_copy (&local->loc, loc);
+ local->cont.readlink.size = size;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- local->cont.readlink.size = size;
+ afr_read_txn (frame, this, loc->inode, afr_readlink_wind,
+ AFR_DATA_TRANSACTION);
- STACK_WIND_COOKIE (frame, afr_readlink_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->readlink,
- loc, size, xdata);
-
- ret = 0;
-out:
- if (ret < 0)
- AFR_STACK_UNWIND (readlink, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
+out:
+ AFR_STACK_UNWIND(readlink, frame, -1, op_errno, 0, 0, 0);
+
+ return 0;
}
@@ -521,7 +353,7 @@ struct _xattr_key {
};
-void
+int
__gather_xattr_keys (dict_t *dict, char *key, data_t *value,
void *data)
{
@@ -533,18 +365,19 @@ __gather_xattr_keys (dict_t *dict, char *key, data_t *value,
xkey = GF_CALLOC (1, sizeof (*xkey), gf_afr_mt_xattr_key);
if (!xkey)
- return;
+ return -1;
xkey->key = key;
INIT_LIST_HEAD (&xkey->list);
list_add_tail (&xkey->list, list);
}
+ return 0;
}
void
-__filter_xattrs (dict_t *dict)
+afr_filter_xattrs (dict_t *dict)
{
struct list_head keys = {0,};
struct _xattr_key *key = NULL;
@@ -565,59 +398,56 @@ __filter_xattrs (dict_t *dict)
}
-
-int32_t
+int
afr_getxattr_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
dict_t *dict, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
+ afr_local_t *local = NULL;
local = frame->local;
- read_child = (long) cookie;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- if (op_ret == -1) {
- last_index = &local->cont.getxattr.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
- STACK_WIND_COOKIE (frame, afr_getxattr_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->getxattr,
- &local->loc,
- local->cont.getxattr.name,
- NULL);
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
-out:
- if (unwind) {
- if (op_ret >= 0 && dict)
- __filter_xattrs (dict);
+ if (dict)
+ afr_filter_xattrs (dict);
- AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, xdata);
- }
+ AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, xdata);
return 0;
}
+
+int
+afr_getxattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (getxattr, frame, local->op_ret,
+ local->op_errno, NULL, NULL);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_getxattr_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->getxattr,
+ &local->loc, local->cont.getxattr.name,
+ local->xdata_req);
+ return 0;
+}
+
+
int32_t
afr_getxattr_unwind (call_frame_t *frame, int op_ret, int op_errno,
dict_t *dict, dict_t *xdata)
@@ -628,6 +458,94 @@ afr_getxattr_unwind (call_frame_t *frame, int op_ret, int op_errno,
}
int32_t
+afr_fgetxattr_clrlk_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ dict_t *dict, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ xlator_t **children = NULL;
+ dict_t *xattr = NULL;
+ char *tmp_report = NULL;
+ char lk_summary[1024] = {0,};
+ int serz_len = 0;
+ int32_t callcnt = 0;
+ long int cky = 0;
+ int ret = 0;
+
+ priv = this->private;
+ children = priv->children;
+
+ local = frame->local;
+ cky = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ callcnt = --local->call_count;
+ if (op_ret == -1)
+ local->replies[cky].op_errno = op_errno;
+
+ if (!local->dict)
+ local->dict = dict_new ();
+ if (local->dict) {
+ ret = dict_get_str (dict, local->cont.getxattr.name,
+ &tmp_report);
+ if (ret)
+ goto unlock;
+ ret = dict_set_dynstr (local->dict,
+ children[cky]->name,
+ gf_strdup (tmp_report));
+ if (ret)
+ goto unlock;
+ }
+ }
+unlock:
+ UNLOCK (&frame->lock);
+
+ if (!callcnt) {
+ xattr = dict_new ();
+ if (!xattr) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto unwind;
+ }
+ ret = dict_serialize_value_with_delim (local->dict,
+ lk_summary,
+ &serz_len, '\n');
+ if (ret) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Error serializing dictionary");
+ goto unwind;
+ }
+ if (serz_len == -1)
+ snprintf (lk_summary, sizeof (lk_summary),
+ "No locks cleared.");
+ ret = dict_set_dynstr (xattr, local->cont.getxattr.name,
+ gf_strdup (lk_summary));
+ if (ret) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Error setting dictionary");
+ goto unwind;
+ }
+
+ unwind:
+ // Updating child_errno with more recent 'events'
+ op_errno = afr_final_errno (local, priv);
+
+ AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, xattr,
+ xdata);
+ if (xattr)
+ dict_unref (xattr);
+ }
+
+ return ret;
+}
+
+int32_t
afr_getxattr_clrlk_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
dict_t *dict, dict_t *xdata)
@@ -653,7 +571,7 @@ afr_getxattr_clrlk_cbk (call_frame_t *frame, void *cookie,
{
callcnt = --local->call_count;
if (op_ret == -1)
- local->child_errno[cky] = op_errno;
+ local->replies[cky].op_errno = op_errno;
if (!local->dict)
local->dict = dict_new ();
@@ -704,9 +622,8 @@ unlock:
unwind:
// Updating child_errno with more recent 'events'
- local->child_errno[cky] = op_errno;
- op_errno = afr_resultant_errno_get (NULL, local->child_errno,
- priv->child_count);
+ op_errno = afr_final_errno (local, priv);
+
AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, xattr, xdata);
if (xattr)
@@ -761,12 +678,372 @@ afr_getxattr_node_uuid_cbk (call_frame_t *frame, void *cookie,
unwind:
if (unwind)
- AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, NULL);
+ AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict,
+ NULL);
+
+ return 0;
+}
+
+int32_t
+afr_getxattr_lockinfo_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ dict_t *dict, dict_t *xdata)
+{
+ int call_cnt = 0, len = 0;
+ char *lockinfo_buf = NULL;
+ dict_t *lockinfo = NULL, *newdict = NULL;
+ afr_local_t *local = NULL;
+
+ LOCK (&frame->lock);
+ {
+ local = frame->local;
+
+ call_cnt = --local->call_count;
+
+ if ((op_ret < 0) || (!dict && !xdata)) {
+ goto unlock;
+ }
+
+ if (xdata) {
+ if (!local->xdata_rsp) {
+ local->xdata_rsp = dict_new ();
+ if (!local->xdata_rsp) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unlock;
+ }
+ }
+ }
+
+ if (!dict) {
+ goto unlock;
+ }
+
+ op_ret = dict_get_ptr_and_len (dict, GF_XATTR_LOCKINFO_KEY,
+ (void **)&lockinfo_buf, &len);
+
+ if (!lockinfo_buf) {
+ goto unlock;
+ }
+
+ if (!local->dict) {
+ local->dict = dict_new ();
+ if (!local->dict) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unlock;
+ }
+ }
+ }
+unlock:
+ UNLOCK (&frame->lock);
+
+ if (lockinfo_buf != NULL) {
+ lockinfo = dict_new ();
+ if (lockinfo == NULL) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ } else {
+ op_ret = dict_unserialize (lockinfo_buf, len,
+ &lockinfo);
+
+ if (lockinfo && local->dict) {
+ dict_copy (lockinfo, local->dict);
+ }
+ }
+ }
+
+ if (xdata && local->xdata_rsp) {
+ dict_copy (xdata, local->xdata_rsp);
+ }
+
+ if (!call_cnt) {
+ newdict = dict_new ();
+ if (!newdict) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unwind;
+ }
+
+ len = dict_serialized_length (local->dict);
+ if (len == 0) {
+ goto unwind;
+ }
+
+ lockinfo_buf = GF_CALLOC (1, len, gf_common_mt_char);
+ if (!lockinfo_buf) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unwind;
+ }
+
+ op_ret = dict_serialize (local->dict, lockinfo_buf);
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = -op_ret;
+ }
+
+ op_ret = dict_set_dynptr (newdict, GF_XATTR_LOCKINFO_KEY,
+ (void *)lockinfo_buf, len);
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = -op_ret;
+ goto unwind;
+ }
+
+ unwind:
+ AFR_STACK_UNWIND (getxattr, frame, op_ret,
+ op_errno, newdict,
+ local->xdata_rsp);
+ }
+
+ dict_unref (lockinfo);
+
+ return 0;
+}
+
+int32_t
+afr_fgetxattr_lockinfo_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ dict_t *dict, dict_t *xdata)
+{
+ int call_cnt = 0, len = 0;
+ char *lockinfo_buf = NULL;
+ dict_t *lockinfo = NULL, *newdict = NULL;
+ afr_local_t *local = NULL;
+
+ LOCK (&frame->lock);
+ {
+ local = frame->local;
+
+ call_cnt = --local->call_count;
+
+ if ((op_ret < 0) || (!dict && !xdata)) {
+ goto unlock;
+ }
+
+ if (xdata) {
+ if (!local->xdata_rsp) {
+ local->xdata_rsp = dict_new ();
+ if (!local->xdata_rsp) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unlock;
+ }
+ }
+ }
+
+ if (!dict) {
+ goto unlock;
+ }
+
+ op_ret = dict_get_ptr_and_len (dict, GF_XATTR_LOCKINFO_KEY,
+ (void **)&lockinfo_buf, &len);
+
+ if (!lockinfo_buf) {
+ goto unlock;
+ }
+
+ if (!local->dict) {
+ local->dict = dict_new ();
+ if (!local->dict) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unlock;
+ }
+ }
+ }
+unlock:
+ UNLOCK (&frame->lock);
+
+ if (lockinfo_buf != NULL) {
+ lockinfo = dict_new ();
+ if (lockinfo == NULL) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ } else {
+ op_ret = dict_unserialize (lockinfo_buf, len,
+ &lockinfo);
+
+ if (lockinfo && local->dict) {
+ dict_copy (lockinfo, local->dict);
+ }
+ }
+ }
+
+ if (xdata && local->xdata_rsp) {
+ dict_copy (xdata, local->xdata_rsp);
+ }
+
+ if (!call_cnt) {
+ newdict = dict_new ();
+ if (!newdict) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unwind;
+ }
+
+ len = dict_serialized_length (local->dict);
+ if (len <= 0) {
+ goto unwind;
+ }
+
+ lockinfo_buf = GF_CALLOC (1, len, gf_common_mt_char);
+ if (!lockinfo_buf) {
+ local->op_ret = -1;
+ local->op_errno = ENOMEM;
+ goto unwind;
+ }
+
+ op_ret = dict_serialize (local->dict, lockinfo_buf);
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = -op_ret;
+ }
+
+ op_ret = dict_set_dynptr (newdict, GF_XATTR_LOCKINFO_KEY,
+ (void *)lockinfo_buf, len);
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = -op_ret;
+ goto unwind;
+ }
+
+ unwind:
+ AFR_STACK_UNWIND (fgetxattr, frame, op_ret,
+ op_errno, newdict,
+ local->xdata_rsp);
+ }
+
+ dict_unref (lockinfo);
return 0;
}
int32_t
+afr_fgetxattr_pathinfo_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ dict_t *dict, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int32_t callcnt = 0;
+ int ret = 0;
+ char *xattr = NULL;
+ char *xattr_serz = NULL;
+ char xattr_cky[1024] = {0,};
+ dict_t *nxattr = NULL;
+ long cky = 0;
+ int32_t padding = 0;
+ int32_t tlen = 0;
+
+ if (!frame || !frame->local || !this) {
+ gf_log ("", GF_LOG_ERROR, "possible NULL deref");
+ goto out;
+ }
+
+ local = frame->local;
+ cky = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ callcnt = --local->call_count;
+
+ if (op_ret < 0) {
+ local->op_errno = op_errno;
+ } else {
+ local->op_ret = op_ret;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ }
+
+ if (!dict || (op_ret < 0))
+ goto out;
+
+ if (!local->dict)
+ local->dict = dict_new ();
+
+ if (local->dict) {
+ ret = dict_get_str (dict,
+ local->cont.getxattr.name,
+ &xattr);
+ if (ret)
+ goto out;
+
+ xattr = gf_strdup (xattr);
+
+ (void)snprintf (xattr_cky, 1024, "%s-%ld",
+ local->cont.getxattr.name, cky);
+ ret = dict_set_dynstr (local->dict,
+ xattr_cky, xattr);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Cannot set xattr cookie key");
+ goto out;
+ }
+
+ local->cont.getxattr.xattr_len
+ += strlen (xattr) + 1;
+ }
+ }
+out:
+ UNLOCK (&frame->lock);
+
+ if (!callcnt) {
+ if (!local->cont.getxattr.xattr_len)
+ goto unwind;
+
+ nxattr = dict_new ();
+ if (!nxattr)
+ goto unwind;
+
+ /* extra bytes for decorations (brackets and <>'s) */
+ padding += strlen (this->name)
+ + strlen (AFR_PATHINFO_HEADER) + 4;
+ local->cont.getxattr.xattr_len += (padding + 2);
+
+ xattr_serz = GF_CALLOC (local->cont.getxattr.xattr_len,
+ sizeof (char), gf_common_mt_char);
+
+ if (!xattr_serz)
+ goto unwind;
+
+ /* the xlator info */
+ (void) sprintf (xattr_serz, "(<"AFR_PATHINFO_HEADER"%s> ",
+ this->name);
+
+ /* actual series of pathinfo */
+ ret = dict_serialize_value_with_delim (local->dict,
+ xattr_serz
+ + strlen (xattr_serz),
+ &tlen, ' ');
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Error serializing"
+ " dictionary");
+ goto unwind;
+ }
+
+ /* closing part */
+ *(xattr_serz + padding + tlen) = ')';
+ *(xattr_serz + padding + tlen + 1) = '\0';
+
+ ret = dict_set_dynstr (nxattr, local->cont.getxattr.name,
+ xattr_serz);
+ if (ret)
+ gf_log (this->name, GF_LOG_ERROR, "Cannot set pathinfo"
+ " key in dict");
+
+ unwind:
+ AFR_STACK_UNWIND (fgetxattr, frame, local->op_ret,
+ local->op_errno, nxattr, local->xdata_rsp);
+
+ if (nxattr)
+ dict_unref (nxattr);
+ }
+
+ return ret;
+}
+
+int32_t
afr_getxattr_pathinfo_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
dict_t *dict, dict_t *xdata)
@@ -794,6 +1071,14 @@ afr_getxattr_pathinfo_cbk (call_frame_t *frame, void *cookie,
{
callcnt = --local->call_count;
+ if (op_ret < 0) {
+ local->op_errno = op_errno;
+ } else {
+ local->op_ret = op_ret;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ }
+
if (!dict || (op_ret < 0))
goto out;
@@ -868,8 +1153,8 @@ afr_getxattr_pathinfo_cbk (call_frame_t *frame, void *cookie,
" key in dict");
unwind:
- AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, nxattr,
- xdata);
+ AFR_STACK_UNWIND (getxattr, frame, local->op_ret,
+ local->op_errno, nxattr, local->xdata_rsp);
if (nxattr)
dict_unref (nxattr);
@@ -878,51 +1163,133 @@ afr_getxattr_pathinfo_cbk (call_frame_t *frame, void *cookie,
return ret;
}
+static int
+afr_aggregate_stime_xattr (dict_t *this, char *key, data_t *value, void *data)
+{
+ int ret = 0;
+
+ if (fnmatch (GF_XATTR_STIME_PATTERN, key, FNM_NOESCAPE) == 0)
+ ret = gf_get_max_stime (THIS, data, key, value);
+
+ return ret;
+}
+
+int32_t
+afr_common_getxattr_stime_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ dict_t *dict, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int32_t callcnt = 0;
+
+ if (!frame || !frame->local || !this) {
+ gf_log ("", GF_LOG_ERROR, "possible NULL deref");
+ goto out;
+ }
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ callcnt = --local->call_count;
+
+ if (!dict || (op_ret < 0)) {
+ local->op_errno = op_errno;
+ goto cleanup;
+ }
+
+ if (!local->dict)
+ local->dict = dict_copy_with_ref (dict, NULL);
+ else
+ dict_foreach (dict, afr_aggregate_stime_xattr,
+ local->dict);
+ local->op_ret = 0;
+ }
+
+cleanup:
+ UNLOCK (&frame->lock);
+
+ if (!callcnt) {
+ AFR_STACK_UNWIND (getxattr, frame, local->op_ret,
+ local->op_errno, local->dict, xdata);
+ }
+
+out:
+ return 0;
+}
+
+
static gf_boolean_t
-afr_is_special_xattr (const char *name, fop_getxattr_cbk_t *cbk)
+afr_is_special_xattr (const char *name, fop_getxattr_cbk_t *cbk,
+ gf_boolean_t is_fgetxattr)
{
gf_boolean_t is_spl = _gf_true;
GF_ASSERT (cbk);
- if (!cbk) {
+ if (!cbk || !name) {
is_spl = _gf_false;
goto out;
}
- if (!strcmp (name, GF_XATTR_PATHINFO_KEY))
- *cbk = afr_getxattr_pathinfo_cbk;
-
- else if (!strncmp (name, GF_XATTR_CLRLK_CMD,
- strlen (GF_XATTR_CLRLK_CMD)))
- *cbk = afr_getxattr_clrlk_cbk;
- else
+ if (!strcmp (name, GF_XATTR_PATHINFO_KEY) ||
+ !strcmp (name, GF_XATTR_USER_PATHINFO_KEY)) {
+ if (is_fgetxattr) {
+ *cbk = afr_fgetxattr_pathinfo_cbk;
+ } else {
+ *cbk = afr_getxattr_pathinfo_cbk;
+ }
+ } else if (!strncmp (name, GF_XATTR_CLRLK_CMD,
+ strlen (GF_XATTR_CLRLK_CMD))) {
+ if (is_fgetxattr) {
+ *cbk = afr_fgetxattr_clrlk_cbk;
+ } else {
+ *cbk = afr_getxattr_clrlk_cbk;
+ }
+ } else if (!strncmp (name, GF_XATTR_LOCKINFO_KEY,
+ strlen (GF_XATTR_LOCKINFO_KEY))) {
+ if (is_fgetxattr) {
+ *cbk = afr_fgetxattr_lockinfo_cbk;
+ } else {
+ *cbk = afr_getxattr_lockinfo_cbk;
+ }
+ } else if (fnmatch (GF_XATTR_STIME_PATTERN, name, FNM_NOESCAPE) == 0) {
+ *cbk = afr_common_getxattr_stime_cbk;
+ } else {
is_spl = _gf_false;
+ }
out:
return is_spl;
}
static void
-afr_getxattr_frm_all_children (xlator_t *this, call_frame_t *frame,
- const char *name, loc_t *loc,
- fop_getxattr_cbk_t cbk)
+afr_getxattr_all_subvols (xlator_t *this, call_frame_t *frame,
+ const char *name, loc_t *loc,
+ fop_getxattr_cbk_t cbk)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- xlator_t **children = NULL;
int i = 0;
+ int call_count = 0;
priv = this->private;
- children = priv->children;
local = frame->local;
- local->call_count = priv->child_count;
+ //local->call_count set in afr_local_init
+ call_count = local->call_count;
+
+ //If up-children count is 0, afr_local_init would have failed already
+ //and the call would have unwound so not handling it here.
for (i = 0; i < priv->child_count; i++) {
- STACK_WIND_COOKIE (frame, cbk,
- (void *) (long) i,
- children[i], children[i]->fops->getxattr,
- loc, name, NULL);
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, cbk,
+ (void *) (long) i, priv->children[i],
+ priv->children[i]->fops->getxattr,
+ loc, name, NULL);
+ if (!--call_count)
+ break;
+ }
}
return;
}
@@ -933,39 +1300,41 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
{
afr_private_t *priv = NULL;
xlator_t **children = NULL;
- int call_child = 0;
afr_local_t *local = NULL;
xlator_list_t *trav = NULL;
xlator_t **sub_volumes = NULL;
int i = 0;
int32_t op_errno = 0;
- int32_t read_child = -1;
int ret = -1;
fop_getxattr_cbk_t cbk = NULL;
+ int afr_xtime_gauge[MCNT_MAX] = {0,};
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
children = priv->children;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ loc_copy (&local->loc, loc);
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local->op = GF_FOP_GETXATTR;
+
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- loc_copy (&local->loc, loc);
if (!name)
goto no_name;
local->cont.getxattr.name = gf_strdup (name);
+ if (!local->cont.getxattr.name) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
if (!strncmp (name, AFR_XATTR_PREFIX,
strlen (AFR_XATTR_PREFIX))) {
gf_log (this->name, GF_LOG_INFO,
@@ -975,7 +1344,7 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
goto out;
}
if ((strcmp (GF_XATTR_MARKER_KEY, name) == 0)
- && (-1 == frame->root->pid)) {
+ && (GF_CLIENT_PID_GSYNCD == frame->root->pid)) {
local->marker.call_count = priv->child_count;
@@ -991,6 +1360,7 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
sub_volumes,
priv->child_count,
MARKER_UUID_TYPE,
+ marker_uuid_default_gauge,
priv->vol_uuid)) {
gf_log (this->name, GF_LOG_INFO,
@@ -1007,9 +1377,8 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
* if we are doing getxattr with pathinfo as the key then we
* collect information from all childs
*/
- if (afr_is_special_xattr (name, &cbk)) {
- afr_getxattr_frm_all_children (this, frame, name,
- loc, cbk);
+ if (afr_is_special_xattr (name, &cbk, 0)) {
+ afr_getxattr_all_subvols (this, frame, name, loc, cbk);
return 0;
}
@@ -1025,10 +1394,11 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
if (*priv->vol_uuid) {
if ((match_uuid_local (name, priv->vol_uuid) == 0)
- && (-1 == frame->root->pid)) {
+ && (GF_CLIENT_PID_GSYNCD == frame->root->pid)) {
local->marker.call_count = priv->child_count;
- sub_volumes = alloca ( priv->child_count * sizeof (xlator_t *));
+ sub_volumes = alloca ( priv->child_count
+ * sizeof (xlator_t *));
for (i = 0, trav = this->children; trav ;
trav = trav->next, i++) {
@@ -1036,12 +1406,20 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
}
+ /* don't err out on getting ENOTCONN (brick down)
+ * from a subset of the bricks
+ */
+ memcpy (afr_xtime_gauge, marker_xtime_default_gauge,
+ sizeof (afr_xtime_gauge));
+ afr_xtime_gauge[MCNT_NOTFOUND] = 0;
+ afr_xtime_gauge[MCNT_ENOTCONN] = 0;
if (cluster_getmarkerattr (frame, this, loc,
name, local,
afr_getxattr_unwind,
sub_volumes,
priv->child_count,
MARKER_XTIME_TYPE,
+ afr_xtime_gauge,
priv->vol_uuid)) {
gf_log (this->name, GF_LOG_INFO,
"%s: failed to get marker attr (%s)",
@@ -1055,27 +1433,9 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
}
no_name:
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
- read_child = afr_inode_get_read_ctx (this, loc->inode, local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.getxattr.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
-
- STACK_WIND_COOKIE (frame, afr_getxattr_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->getxattr,
- loc, name, xdata);
+ afr_read_txn (frame, this, local->loc.inode, afr_getxattr_wind,
+ AFR_METADATA_TRANSACTION);
ret = 0;
out:
@@ -1092,128 +1452,128 @@ afr_fgetxattr_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
dict_t *dict, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
+ afr_local_t *local = NULL;
- priv = this->private;
- children = priv->children;
+ local = frame->local;
- local = frame->local;
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
- read_child = (long) cookie;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- if (op_ret == -1) {
- last_index = &local->cont.getxattr.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ if (dict)
+ afr_filter_xattrs (dict);
- unwind = 0;
- STACK_WIND_COOKIE (frame, afr_fgetxattr_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->fgetxattr,
- local->fd,
- local->cont.getxattr.name,
- NULL);
- }
+ AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict, xdata);
-out:
- if (unwind) {
- if (op_ret >= 0 && dict)
- __filter_xattrs (dict);
-
- AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict,
- xdata);
- }
-
- return 0;
+ return 0;
}
-int32_t
-afr_fgetxattr_unwind (call_frame_t *frame,
- int op_ret, int op_errno, dict_t *dict, dict_t *xdata)
-
+int
+afr_fgetxattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict, xdata);
- return 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (fgetxattr, frame, local->op_ret,
+ local->op_errno, NULL, NULL);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, (void *) (long) subvol, afr_fgetxattr_cbk,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fgetxattr,
+ local->fd, local->cont.getxattr.name,
+ local->xdata_req);
+ return 0;
}
-int32_t
-afr_fgetxattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, const char *name, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- afr_local_t *local = NULL;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int32_t read_child = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+static void
+afr_fgetxattr_all_subvols (xlator_t *this, call_frame_t *frame,
+ fop_fgetxattr_cbk_t cbk)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int call_count = 0;
priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
- children = priv->children;
+ local = frame->local;
+ //local->call_count set in afr_local_init
+ call_count = local->call_count;
- AFR_LOCAL_ALLOC_OR_GOTO (local, out);
- frame->local = local;
+ //If up-children count is 0, afr_local_init would have failed already
+ //and the call would have unwound so not handling it here.
- op_ret = afr_local_init (local, priv, &op_errno);
- if (op_ret < 0) {
- op_errno = -op_ret;
- goto out;
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->fgetxattr,
+ local->fd, local->cont.getxattr.name,
+ NULL);
+ if (!--call_count)
+ break;
+ }
}
- local->fd = fd_ref (fd);
- if (name)
- local->cont.getxattr.name = gf_strdup (name);
+ return;
+}
- /* pathinfo gets handled only in getxattr() */
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+int
+afr_fgetxattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, const char *name, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int32_t op_errno = 0;
+ fop_fgetxattr_cbk_t cbk = NULL;
- read_child = afr_inode_get_read_ctx (this, fd->inode, local->fresh_children);
- op_ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.getxattr.last_index);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ local->op = GF_FOP_FGETXATTR;
+ local->fd = fd_ref (fd);
+ if (name) {
+ local->cont.getxattr.name = gf_strdup (name);
+ if (!local->cont.getxattr.name) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+ }
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
+
+ /* pathinfo gets handled only in getxattr(), but we need to handle
+ * lockinfo.
+ * If we are doing fgetxattr with lockinfo as the key then we
+ * collect information from all children.
+ */
+ if (afr_is_special_xattr (name, &cbk, 1)) {
+ afr_fgetxattr_all_subvols (this, frame, cbk);
+ return 0;
}
- STACK_WIND_COOKIE (frame, afr_fgetxattr_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->fgetxattr,
- fd, name, xdata);
+ afr_fix_open (fd, this);
- op_ret = 0;
+ afr_read_txn (frame, this, fd->inode, afr_fgetxattr_wind,
+ AFR_METADATA_TRANSACTION);
+
+ return 0;
out:
- if (op_ret == -1) {
- AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, NULL, NULL);
- }
+ AFR_STACK_UNWIND (fgetxattr, frame, -1, op_errno, NULL, NULL);
+
return 0;
}
@@ -1222,145 +1582,84 @@ out:
/* {{{ readv */
-/**
- * read algorithm:
- *
- * if the user has specified a read subvolume, use it
- * otherwise -
- * use the inode number to hash it to one of the subvolumes, and
- * read from there (to balance read load)
- *
- * if any of the above read's fail, try the children in sequence
- * beginning at the beginning
- */
-
-int32_t
+int
afr_readv_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
struct iovec *vector, int32_t count, struct iatt *buf,
struct iobref *iobref, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t *fresh_children = NULL;
- int32_t read_child = -1;
+ afr_local_t *local = NULL;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ local = frame->local;
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
- children = priv->children;
-
- local = frame->local;
-
- read_child = (long) cookie;
-
- if (op_ret == -1) {
- last_index = &local->cont.readv.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- STACK_WIND_COOKIE (frame, afr_readv_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->readv,
- local->fd, local->cont.readv.size,
- local->cont.readv.offset,
- local->cont.readv.flags,
- NULL);
- }
+ AFR_STACK_UNWIND (readv, frame, op_ret, op_errno,
+ vector, count, buf, iobref, xdata);
+ return 0;
+}
-out:
- if (unwind) {
- AFR_STACK_UNWIND (readv, frame, op_ret, op_errno,
- vector, count, buf, iobref, xdata);
- }
- return 0;
+int
+afr_readv_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (readv, frame, local->op_ret, local->op_errno,
+ 0, 0, 0, 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_readv_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->readv,
+ local->fd, local->cont.readv.size,
+ local->cont.readv.offset, local->cont.readv.flags,
+ local->xdata_req);
+ return 0;
}
-int32_t
-afr_readv (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset, uint32_t flags, dict_t *xdata)
+int
+afr_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+ off_t offset, uint32_t flags, dict_t *xdata)
{
- afr_private_t * priv = NULL;
afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int call_child = 0;
int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- children = priv->children;
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- read_child = afr_inode_get_read_ctx (this, fd->inode, local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.readv.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ local->op = GF_FOP_READ;
+ local->fd = fd_ref (fd);
+ local->cont.readv.size = size;
+ local->cont.readv.offset = offset;
+ local->cont.readv.flags = flags;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- local->fd = fd_ref (fd);
+ afr_fix_open (fd, this);
- local->cont.readv.size = size;
- local->cont.readv.offset = offset;
- local->cont.readv.flags = flags;
+ afr_read_txn (frame, this, fd->inode, afr_readv_wind,
+ AFR_DATA_TRANSACTION);
- ret = afr_open_fd_fix (frame, this, _gf_false);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
- STACK_WIND_COOKIE (frame, afr_readv_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->readv,
- fd, size, offset, flags, xdata);
-
- ret = 0;
-out:
- if (ret < 0) {
- AFR_STACK_UNWIND (readv, frame, -1, op_errno, NULL, 0, NULL,
- NULL, NULL);
- }
return 0;
+out:
+ AFR_STACK_UNWIND(readv, frame, -1, op_errno, 0, 0, 0, 0, 0);
+
+ return 0;
}
/* }}} */
diff --git a/xlators/cluster/afr/src/afr-inode-write.c b/xlators/cluster/afr/src/afr-inode-write.c
index 02e36b13a..3dacfc8dd 100644
--- a/xlators/cluster/afr/src/afr-inode-write.c
+++ b/xlators/cluster/afr/src/afr-inode-write.c
@@ -37,145 +37,303 @@
#include "afr.h"
#include "afr-transaction.h"
-#include "afr-self-heal-common.h"
+//#include "afr-self-heal-common.h"
-/* {{{ writev */
-int
-afr_writev_unwind (call_frame_t *frame, xlator_t *this)
+static void
+__afr_inode_write_finalize (call_frame_t *frame, xlator_t *this)
{
- afr_local_t * local = NULL;
- call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int read_subvol = 0;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (local->inode) {
+ if (local->transaction.type == AFR_METADATA_TRANSACTION)
+ read_subvol = afr_metadata_subvol_get (local->inode, this,
+ NULL, NULL);
+ else
+ read_subvol = afr_data_subvol_get (local->inode, this,
+ NULL, NULL);
+ }
+
+ local->op_ret = -1;
+ local->op_errno = afr_final_errno (local, priv);
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].valid)
+ continue;
+ if (local->replies[i].op_ret < 0) {
+ afr_inode_read_subvol_reset (local->inode, this);
+ continue;
+ }
+
+ /* Order of checks in the compound conditional
+ below is important.
+
+ - Highest precedence: largest op_ret
+ - Next precendence: if all op_rets are equal, read subvol
+ - Least precedence: any succeeded subvol
+ */
+ if ((local->op_ret < local->replies[i].op_ret) ||
+ ((local->op_ret == local->replies[i].op_ret) &&
+ (i == read_subvol))) {
+
+ local->op_ret = local->replies[i].op_ret;
+ local->op_errno = local->replies[i].op_errno;
+
+ local->cont.inode_wfop.prebuf =
+ local->replies[i].prestat;
+ local->cont.inode_wfop.postbuf =
+ local->replies[i].poststat;
+
+ if (local->replies[i].xdata) {
+ if (local->xdata_rsp)
+ dict_unref (local->xdata_rsp);
+ local->xdata_rsp =
+ dict_ref (local->replies[i].xdata);
+ }
+ }
+ }
+}
+
+
+static void
+__afr_inode_write_fill (call_frame_t *frame, xlator_t *this, int child_index,
+ int op_ret, int op_errno,
+ struct iatt *prebuf, struct iatt *postbuf, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ local->replies[child_index].valid = 1;
+ local->replies[child_index].op_ret = op_ret;
+ local->replies[child_index].op_errno = op_errno;
+
+ if (op_ret >= 0) {
+ if (prebuf)
+ local->replies[child_index].prestat = *prebuf;
+ if (postbuf)
+ local->replies[child_index].poststat = *postbuf;
+ if (xdata)
+ local->replies[child_index].xdata = dict_ref (xdata);
+ } else {
+ afr_transaction_fop_failed (frame, this, child_index);
+ }
+
+ return;
+}
+
+
+static int
+__afr_inode_write_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int child_index = (long) cookie;
+ int call_count = -1;
local = frame->local;
LOCK (&frame->lock);
{
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
+ __afr_inode_write_fill (frame, this, child_index, op_ret,
+ op_errno, prebuf, postbuf, xdata);
}
UNLOCK (&frame->lock);
- if (main_frame) {
- AFR_STACK_UNWIND (writev, main_frame,
- local->op_ret, local->op_errno,
- &local->cont.writev.prebuf,
- &local->cont.writev.postbuf,
- NULL);
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ __afr_inode_write_finalize (frame, this);
+
+ if (afr_txn_nothing_failed (frame, this))
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
}
+
return 0;
}
+/* {{{ writev */
-int
-afr_writev_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
- struct iatt *postbuf, dict_t *xdata)
+void
+afr_writev_copy_outvars (call_frame_t *src_frame, call_frame_t *dst_frame)
{
- afr_local_t * local = NULL;
- int child_index = (long) cookie;
- int call_count = -1;
- int read_child = 0;
+ afr_local_t *src_local = NULL;
+ afr_local_t *dst_local = NULL;
+
+ src_local = src_frame->local;
+ dst_local = dst_frame->local;
+
+ dst_local->op_ret = src_local->op_ret;
+ dst_local->op_errno = src_local->op_errno;
+ dst_local->cont.inode_wfop.prebuf = src_local->cont.inode_wfop.prebuf;
+ dst_local->cont.inode_wfop.postbuf = src_local->cont.inode_wfop.postbuf;
+ if (src_local->xdata_rsp)
+ dst_local->xdata_rsp = dict_ref (src_local->xdata_rsp);
+}
+void
+afr_writev_unwind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = NULL;
local = frame->local;
- read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
-
- LOCK (&frame->lock);
- {
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
+ AFR_STACK_UNWIND (writev, frame,
+ local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf,
+ local->xdata_rsp);
+}
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.writev.prebuf = *prebuf;
- local->cont.writev.postbuf = *postbuf;
- }
+int
+afr_transaction_writev_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *fop_frame = NULL;
- if (child_index == read_child) {
- local->cont.writev.prebuf = *prebuf;
- local->cont.writev.postbuf = *postbuf;
- }
- }
+ fop_frame = afr_transaction_detach_fop_frame (frame);
- local->op_errno = op_errno;
+ if (fop_frame) {
+ afr_writev_copy_outvars (frame, fop_frame);
+ afr_writev_unwind (fop_frame, this);
}
- UNLOCK (&frame->lock);
+ return 0;
+}
- call_count = afr_frame_return (frame);
+static void
+afr_writev_handle_short_writes (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
- if (call_count == 0) {
- local->transaction.unwind (frame, this);
+ local = frame->local;
+ priv = this->private;
+ /*
+ * We already have the best case result of the writev calls staged
+ * as the return value. Any writev that returns some value less
+ * than the best case is now out of sync, so mark the fop as
+ * failed. Note that fops that have returned with errors have
+ * already been marked as failed.
+ */
+ for (i = 0; i < priv->child_count; i++) {
+ if ((!local->replies[i].valid) ||
+ (local->replies[i].op_ret == -1))
+ continue;
- local->transaction.resume (frame, this);
+ if (local->replies[i].op_ret < local->op_ret)
+ afr_transaction_fop_failed(frame, this, i);
}
- return 0;
}
int
-afr_writev_wind (call_frame_t *frame, xlator_t *this)
+afr_writev_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int i = 0;
- int call_count = -1;
+ afr_local_t * local = NULL;
+ call_frame_t *fop_frame = NULL;
+ int child_index = (long) cookie;
+ int call_count = -1;
+ int ret = 0;
+ uint32_t open_fd_count = 0;
+ uint32_t write_is_append = 0;
local = frame->local;
- priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
+ LOCK (&frame->lock);
+ {
+ __afr_inode_write_fill (frame, this, child_index, op_ret,
+ op_errno, prebuf, postbuf, xdata);
+ if (op_ret == -1 || !xdata)
+ goto unlock;
+
+ write_is_append = 0;
+ ret = dict_get_uint32 (xdata, GLUSTERFS_WRITE_IS_APPEND,
+ &write_is_append);
+ if (ret || !write_is_append)
+ local->append_write = _gf_false;
+
+ ret = dict_get_uint32 (xdata, GLUSTERFS_OPEN_FD_COUNT,
+ &open_fd_count);
+ if (ret == -1)
+ goto unlock;
+ if ((open_fd_count > local->open_fd_count)) {
+ local->open_fd_count = open_fd_count;
+ local->update_open_fd_count = _gf_true;
+ }
}
+unlock:
+ UNLOCK (&frame->lock);
- local->call_count = call_count;
+ call_count = afr_frame_return (frame);
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_writev_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->writev,
- local->fd,
- local->cont.writev.vector,
- local->cont.writev.count,
- local->cont.writev.offset,
- local->cont.writev.flags,
- local->cont.writev.iobref,
- NULL);
-
- if (!--call_count)
- break;
+ if (call_count == 0) {
+ if (!local->stable_write && !local->append_write)
+ /* An appended write removes the necessity to
+ fsync() the file. This is because self-heal
+ has the logic to check for larger file when
+ the xattrs are not reliably pointing at
+ a stale file.
+ */
+ afr_fd_report_unstable_write (this, local->fd);
+
+ __afr_inode_write_finalize (frame, this);
+
+ afr_writev_handle_short_writes (frame, this);
+
+ if (local->update_open_fd_count)
+ afr_handle_open_fd_count (frame, this);
+
+ if (!afr_txn_nothing_failed (frame, this)) {
+ //Don't unwind until post-op is complete
+ local->transaction.resume (frame, this);
+ } else {
+ /*
+ * Generally inode-write fops do transaction.unwind then
+ * transaction.resume, but writev needs to make sure that
+ * delayed post-op frame is placed in fdctx before unwind
+ * happens. This prevents the race of flush doing the
+ * changelog wakeup first in fuse thread and then this
+ * writev placing its delayed post-op frame in fdctx.
+ * This helps flush make sure all the delayed post-ops are
+ * completed.
+ */
+
+ fop_frame = afr_transaction_detach_fop_frame (frame);
+ afr_writev_copy_outvars (frame, fop_frame);
+ local->transaction.resume (frame, this);
+ afr_writev_unwind (fop_frame, this);
}
}
-
return 0;
}
int
-afr_writev_done (call_frame_t *frame, xlator_t *this)
+afr_writev_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
local = frame->local;
+ priv = this->private;
- iobref_unref (local->cont.writev.iobref);
- local->cont.writev.iobref = NULL;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
+ STACK_WIND_COOKIE (frame, afr_writev_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->writev,
+ local->fd, local->cont.writev.vector,
+ local->cont.writev.count, local->cont.writev.offset,
+ local->cont.writev.flags, local->cont.writev.iobref,
+ local->xdata_req);
return 0;
}
@@ -185,30 +343,37 @@ afr_do_writev (call_frame_t *frame, xlator_t *this)
{
call_frame_t *transaction_frame = NULL;
afr_local_t *local = NULL;
- int op_ret = -1;
- int op_errno = 0;
-
- local = frame->local;
+ int ret = -1;
+ int op_errno = ENOMEM;
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
+ local = frame->local;
transaction_frame->local = local;
- frame->local = NULL;
+ frame->local = NULL;
- local->op = GF_FOP_WRITE;
+ if (!AFR_FRAME_INIT (frame, op_errno))
+ goto out;
- local->success_count = 0;
+ local->op = GF_FOP_WRITE;
- local->transaction.fop = afr_writev_wind;
- local->transaction.done = afr_writev_done;
- local->transaction.unwind = afr_writev_unwind;
+ local->transaction.wind = afr_writev_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
+ local->transaction.unwind = afr_transaction_writev_unwind;
local->transaction.main_frame = frame;
+
if (local->fd->flags & O_APPEND) {
+ /*
+ * Backend vfs ignores the 'offset' for append mode fd so
+ * locking just the region provided for the writev does not
+ * give consistency gurantee. The actual write may happen at a
+ * completely different range than the one provided by the
+ * offset, len in the fop. So lock the entire file.
+ */
local->transaction.start = 0;
local->transaction.len = 0;
} else {
@@ -217,269 +382,86 @@ afr_do_writev (call_frame_t *frame, xlator_t *this)
local->cont.writev.count);
}
- afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
-
- op_ret = 0;
-out:
- if (op_ret == -1) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (writev, frame, op_ret, op_errno, NULL, NULL, NULL);
- }
-
- return 0;
-}
-
-static int
-afr_prepare_loc (call_frame_t *frame, fd_t *fd)
-{
- afr_local_t *local = NULL;
- char *name = NULL;
- char *path = NULL;
- int ret = 0;
-
- if ((!fd) || (!fd->inode))
- return -1;
-
- local = frame->local;
- ret = inode_path (fd->inode, NULL, (char **)&path);
- if (ret <= 0) {
- gf_log (frame->this->name, GF_LOG_DEBUG,
- "Unable to get path for gfid: %s",
- uuid_utoa (fd->inode->gfid));
- return -1;
- }
-
- if (local->loc.path) {
- if (strcmp (path, local->loc.path))
- gf_log (frame->this->name, GF_LOG_DEBUG,
- "overwriting old loc->path %s with %s",
- local->loc.path, path);
- GF_FREE ((char *)local->loc.path);
- }
- local->loc.path = path;
-
- name = strrchr (local->loc.path, '/');
- if (name)
- name++;
- local->loc.name = name;
-
- if (local->loc.inode) {
- inode_unref (local->loc.inode);
- }
- local->loc.inode = inode_ref (fd->inode);
-
- if (local->loc.parent) {
- inode_unref (local->loc.parent);
+ ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
- local->loc.parent = inode_parent (local->loc.inode, 0, NULL);
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
-afr_fd_paused_call_t*
-afr_paused_call_create (call_frame_t *frame)
-{
- afr_local_t *local = NULL;
- afr_fd_paused_call_t *paused_call = NULL;
-
- local = frame->local;
- GF_ASSERT (local->fop_call_continue);
-
- paused_call = GF_CALLOC (1, sizeof (*paused_call),
- gf_afr_fd_paused_call_t);
- if (paused_call) {
- INIT_LIST_HEAD (&paused_call->call_list);
- paused_call->frame = frame;
- }
-
- return paused_call;
-}
-
-static int
-afr_pause_fd_fop (call_frame_t *frame, xlator_t *this, afr_fd_ctx_t *fd_ctx)
-{
- afr_fd_paused_call_t *paused_call = NULL;
- int ret = 0;
-
- paused_call = afr_paused_call_create (frame);
- if (paused_call)
- list_add (&paused_call->call_list, &fd_ctx->paused_calls);
- else
- ret = -ENOMEM;
-
- return ret;
-}
-
-static void
-afr_trigger_open_fd_self_heal (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- inode_t *inode = NULL;
- char *reason = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- inode = local->fd->inode;
-
- sh->do_missing_entry_self_heal = _gf_true;
- sh->do_gfid_self_heal = _gf_true;
- sh->do_data_self_heal = _gf_true;
-
- reason = "subvolume came online";
- afr_launch_self_heal (frame, this, inode, _gf_true, inode->ia_type,
- reason, NULL, NULL);
-}
-
-int
-afr_open_fd_fix (call_frame_t *frame, xlator_t *this, gf_boolean_t pause_fop)
-{
- int ret = 0;
- int i = 0;
- afr_fd_ctx_t *fd_ctx = NULL;
- inode_t *inode = NULL;
- gf_boolean_t need_self_heal = _gf_false;
- int *need_open = NULL;
- int need_open_count = 0;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- gf_boolean_t fop_continue = _gf_true;
-
- local = frame->local;
- priv = this->private;
-
- GF_ASSERT (local->fd);
-
- inode = local->fd->inode;
- //gfid is not set in rebalance, that case needs to be handled.
- if (fd_is_anonymous (local->fd) ||
- !inode || uuid_is_null (inode->gfid)) {
- fop_continue = _gf_true;
- goto out;
- }
-
- if (pause_fop)
- GF_ASSERT (local->fop_call_continue);
-
- ret = afr_prepare_loc (frame, local->fd);
- if (ret < 0) {
- //File does not exist we cant open it.
- ret = 0;
- goto out;
- }
-
- fd_ctx = afr_fd_ctx_get (local->fd, this);
- if (!fd_ctx) {
- ret = -EINVAL;
- goto out;
- }
-
- LOCK (&local->fd->lock);
- {
- if (fd_ctx->up_count < priv->up_count) {
- need_self_heal = _gf_true;
- fd_ctx->up_count = priv->up_count;
- fd_ctx->down_count = priv->down_count;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if ((fd_ctx->opened_on[i] == AFR_FD_NOT_OPENED) &&
- local->child_up[i]) {
- fd_ctx->opened_on[i] = AFR_FD_OPENING;
- if (!need_open)
- need_open = GF_CALLOC (priv->child_count,
- sizeof (*need_open),
- gf_afr_mt_int32_t);
- need_open[i] = 1;
- need_open_count++;
- } else if (pause_fop && local->child_up[i] &&
- (fd_ctx->opened_on[i] == AFR_FD_OPENING)) {
- local->fop_paused = _gf_true;
- }
- }
-
- if (local->fop_paused) {
- GF_ASSERT (pause_fop);
- gf_log (this->name, GF_LOG_INFO, "Pause fd %p",
- local->fd);
- ret = afr_pause_fd_fop (frame, this, fd_ctx);
- if (ret)
- goto unlock;
- fop_continue = _gf_false;
- }
- }
-unlock:
- UNLOCK (&local->fd->lock);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to fix fd for %s",
- local->loc.path);
- fop_continue = _gf_false;
- goto out;
- }
-
- if (need_self_heal)
- afr_trigger_open_fd_self_heal (frame, this);
-
- if (!need_open_count)
- goto out;
-
- gf_log (this->name, GF_LOG_INFO, "Opening fd %p", local->fd);
- afr_fix_open (frame, this, fd_ctx, need_open_count, need_open);
- fop_continue = _gf_false;
-out:
- if (need_open)
- GF_FREE (need_open);
- if (fop_continue && local->fop_call_continue)
- local->fop_call_continue (frame, this);
- return ret;
-}
int
afr_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
struct iovec *vector, int32_t count, off_t offset,
uint32_t flags, struct iobref *iobref, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(writev,out);
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- local->cont.writev.vector = iov_dup (vector, count);
+ local->cont.writev.vector = iov_dup (vector, count);
+ if (!local->cont.writev.vector)
+ goto out;
local->cont.writev.count = count;
local->cont.writev.offset = offset;
local->cont.writev.flags = flags;
local->cont.writev.iobref = iobref_ref (iobref);
- local->fd = fd_ref (fd);
- local->fop_call_continue = afr_do_writev;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- ret = afr_open_fd_fix (frame, this, _gf_true);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
+ if (!local->xdata_req)
+ goto out;
+
+ local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
+
+ if (dict_set_uint32 (local->xdata_req, GLUSTERFS_OPEN_FD_COUNT, 4)) {
+ op_errno = ENOMEM;
+ goto out;
+ }
- ret = 0;
+ if (dict_set_uint32 (local->xdata_req, GLUSTERFS_WRITE_IS_APPEND, 4)) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ /* Set append_write to be true speculatively. If on any
+ server it turns not be true, we unset it in the
+ callback.
+ */
+ local->append_write = _gf_true;
+
+ /* detect here, but set it in writev_wind_cbk *after* the unstable
+ write is performed
+ */
+ local->stable_write = !!((fd->flags|flags)&(O_SYNC|O_DSYNC));
+
+ afr_fix_open (fd, this);
+
+ afr_do_writev (frame, this);
+
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL);
+ AFR_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
@@ -497,22 +479,13 @@ afr_truncate_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- AFR_STACK_UNWIND (truncate, main_frame, local->op_ret,
- local->op_errno,
- &local->cont.truncate.prebuf,
- &local->cont.truncate.postbuf,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (truncate, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf, local->xdata_rsp);
return 0;
}
@@ -522,114 +495,32 @@ afr_truncate_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
struct iatt *postbuf, dict_t *xdata)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int child_index = (long) cookie;
- int read_child = 0;
- int call_count = -1;
- int need_unwind = 0;
-
- local = frame->local;
- priv = this->private;
-
- read_child = afr_inode_get_read_ctx (this, local->loc.inode, NULL);
+ afr_local_t *local = NULL;
- LOCK (&frame->lock);
- {
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
+ local = frame->local;
- if (afr_fop_failed (op_ret, op_errno) && op_errno != EFBIG)
- afr_transaction_fop_failed (frame, this, child_index);
+ if (op_ret == 0 && prebuf->ia_size != postbuf->ia_size)
+ local->stable_write = _gf_false;
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.truncate.prebuf = *prebuf;
- local->cont.truncate.postbuf = *postbuf;
- }
-
- if (child_index == read_child) {
- local->cont.truncate.prebuf = *prebuf;
- local->cont.truncate.postbuf = *postbuf;
- }
-
- local->success_count++;
-
- if ((local->success_count >= priv->wait_count)
- && local->read_child_returned) {
- need_unwind = 1;
- }
- }
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (need_unwind)
- local->transaction.unwind (frame, this);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ prebuf, postbuf, xdata);
}
-int32_t
-afr_truncate_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_truncate_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_truncate_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->truncate,
- &local->loc,
- local->cont.truncate.offset,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
-
- return 0;
-}
-
-
-int
-afr_truncate_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
+ STACK_WIND_COOKIE (frame, afr_truncate_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->truncate,
+ &local->loc, local->cont.truncate.offset,
+ local->xdata_req);
return 0;
}
@@ -641,52 +532,60 @@ afr_truncate (call_frame_t *frame, xlator_t *this,
afr_private_t * priv = NULL;
afr_local_t * local = NULL;
call_frame_t *transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(truncate,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
local->cont.truncate.offset = offset;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
- local->transaction.fop = afr_truncate_wind;
- local->transaction.done = afr_truncate_done;
+ local->transaction.wind = afr_truncate_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_truncate_unwind;
loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
+
+ local->op = GF_FOP_TRUNCATE;
local->transaction.main_frame = frame;
local->transaction.start = offset;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
+ /* Set it true speculatively, will get reset in afr_truncate_wind_cbk
+ if truncate was not a NOP */
+ local->stable_write = _gf_true;
- ret = 0;
-out:
+ ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (truncate, frame, -1, op_errno, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (truncate, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
@@ -704,21 +603,13 @@ afr_ftruncate_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
- if (main_frame) {
- AFR_STACK_UNWIND (ftruncate, main_frame, local->op_ret,
- local->op_errno,
- &local->cont.ftruncate.prebuf,
- &local->cont.ftruncate.postbuf,
- NULL);
- }
+ AFR_STACK_UNWIND (ftruncate, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf, local->xdata_rsp);
return 0;
}
@@ -728,140 +619,75 @@ afr_ftruncate_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
struct iatt *postbuf, dict_t *xdata)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int child_index = (long) cookie;
- int call_count = -1;
- int need_unwind = 0;
- int read_child = 0;
-
- local = frame->local;
- priv = this->private;
-
- read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
-
- LOCK (&frame->lock);
- {
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
-
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.ftruncate.prebuf = *prebuf;
- local->cont.ftruncate.postbuf = *postbuf;
- }
-
- if (child_index == read_child) {
- local->cont.ftruncate.prebuf = *prebuf;
- local->cont.ftruncate.postbuf = *postbuf;
- }
+ afr_local_t *local = NULL;
- local->success_count++;
+ local = frame->local;
- if ((local->success_count >= priv->wait_count)
- && local->read_child_returned) {
- need_unwind = 1;
- }
- }
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (need_unwind)
- local->transaction.unwind (frame, this);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
+ if (op_ret == 0 && prebuf->ia_size != postbuf->ia_size)
+ local->stable_write = _gf_false;
- return 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ prebuf, postbuf, xdata);
}
int
-afr_ftruncate_wind (call_frame_t *frame, xlator_t *this)
+afr_ftruncate_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
-
- local = frame->local;
- priv = this->private;
-
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_ftruncate_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->ftruncate,
- local->fd,
- local->cont.ftruncate.offset,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
+ local = frame->local;
+ priv = this->private;
+ STACK_WIND_COOKIE (frame, afr_ftruncate_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->ftruncate,
+ local->fd, local->cont.ftruncate.offset,
+ local->xdata_req);
return 0;
}
int
-afr_ftruncate_done (call_frame_t *frame, xlator_t *this)
+afr_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ dict_t *xdata)
{
+ afr_private_t *priv = NULL;
afr_local_t *local = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
- local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
+ priv = this->private;
- return 0;
-}
+ QUORUM_CHECK(ftruncate,out);
+ transaction_frame = copy_frame (frame);
+ if (!frame)
+ goto out;
-int
-afr_do_ftruncate (call_frame_t *frame, xlator_t *this)
-{
- call_frame_t * transaction_frame = NULL;
- afr_local_t * local = NULL;
- int op_ret = -1;
- int op_errno = 0;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
- local = frame->local;
+ local->cont.ftruncate.offset = offset;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- goto out;
- }
+ if (!local->xdata_req)
+ goto out;
- transaction_frame->local = local;
- frame->local = NULL;
+ local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
local->op = GF_FOP_FTRUNCATE;
- local->transaction.fop = afr_ftruncate_wind;
- local->transaction.done = afr_ftruncate_done;
+ local->transaction.wind = afr_ftruncate_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_ftruncate_unwind;
local->transaction.main_frame = frame;
@@ -869,64 +695,21 @@ afr_do_ftruncate (call_frame_t *frame, xlator_t *this)
local->transaction.start = local->cont.ftruncate.offset;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
-
- op_ret = 0;
-out:
- if (op_ret == -1) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (ftruncate, frame, op_ret, op_errno, NULL,
- NULL, NULL);
- }
-
- return 0;
-}
-
-
-int
-afr_ftruncate (call_frame_t *frame, xlator_t *this,
- fd_t *fd, off_t offset, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t *transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
-
- QUORUM_CHECK(ftruncate,out);
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ afr_fix_open (fd, this);
- local->cont.ftruncate.offset = offset;
+ /* Set it true speculatively, will get reset in afr_ftruncate_wind_cbk
+ if truncate was not a NOP */
+ local->stable_write = _gf_true;
- local->fd = fd_ref (fd);
- local->fop_call_continue = afr_do_ftruncate;
-
- ret = afr_open_fd_fix (frame, this, _gf_true);
- if (ret) {
- op_errno = -ret;
- goto out;
+ ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
- ret = 0;
+ return 0;
out:
- if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (ftruncate, frame, -1, op_errno, NULL, NULL, NULL);
- }
+ AFR_STACK_UNWIND (ftruncate, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
@@ -938,203 +721,109 @@ out:
int
afr_setattr_unwind (call_frame_t *frame, xlator_t *this)
{
- afr_local_t * local = NULL;
- call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+ call_frame_t *main_frame = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- AFR_STACK_UNWIND (setattr, main_frame, local->op_ret,
- local->op_errno,
- &local->cont.setattr.preop_buf,
- &local->cont.setattr.postop_buf,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (setattr, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf,
+ local->xdata_rsp);
return 0;
}
int
afr_setattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
+ int op_ret, int op_errno,
struct iatt *preop, struct iatt *postop, dict_t *xdata)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int child_index = (long) cookie;
- int read_child = 0;
- int call_count = -1;
- int need_unwind = 0;
-
- local = frame->local;
- priv = this->private;
-
- read_child = afr_inode_get_read_ctx (this, local->loc.inode, NULL);
-
- LOCK (&frame->lock);
- {
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
-
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.setattr.preop_buf = *preop;
- local->cont.setattr.postop_buf = *postop;
- }
-
- if (child_index == read_child) {
- local->cont.setattr.preop_buf = *preop;
- local->cont.setattr.postop_buf = *postop;
- }
-
- local->success_count++;
-
- if ((local->success_count >= priv->wait_count)
- && local->read_child_returned) {
- need_unwind = 1;
- }
- }
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (need_unwind)
- local->transaction.unwind (frame, this);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ preop, postop, xdata);
}
-int32_t
-afr_setattr_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_setattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_setattr_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->setattr,
- &local->loc,
- &local->cont.setattr.in_buf,
- local->cont.setattr.valid,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_setattr_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->setattr,
+ &local->loc, &local->cont.setattr.in_buf,
+ local->cont.setattr.valid, local->xdata_req);
return 0;
}
int
-afr_setattr_done (call_frame_t *frame, xlator_t *this)
+afr_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc, struct iatt *buf,
+ int32_t valid, dict_t *xdata)
{
+ afr_private_t *priv = NULL;
afr_local_t *local = NULL;
-
- local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-
-int
-afr_setattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, struct iatt *buf, int32_t valid, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t *transaction_frame = NULL;
+ call_frame_t *transaction_frame = NULL;
int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(setattr,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
local->cont.setattr.in_buf = *buf;
local->cont.setattr.valid = valid;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
- local->transaction.fop = afr_setattr_wind;
- local->transaction.done = afr_setattr_done;
+ local->transaction.wind = afr_setattr_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_setattr_unwind;
loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
+
+ local->op = GF_FOP_SETATTR;
local->transaction.main_frame = frame;
local->transaction.start = LLONG_MAX - 1;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
-
- ret = 0;
-out:
+ ret = afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (setattr, frame, -1, op_errno, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (setattr, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
@@ -1148,22 +837,13 @@ afr_fsetattr_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
-
- if (main_frame) {
- AFR_STACK_UNWIND (fsetattr, main_frame, local->op_ret,
- local->op_errno,
- &local->cont.fsetattr.preop_buf,
- &local->cont.fsetattr.postop_buf,
- NULL);
- }
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (fsetattr, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf, local->xdata_rsp);
return 0;
}
@@ -1173,178 +853,89 @@ afr_fsetattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *preop, struct iatt *postop, dict_t *xdata)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int child_index = (long) cookie;
- int read_child = 0;
- int call_count = -1;
- int need_unwind = 0;
-
- local = frame->local;
- priv = this->private;
-
- read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
-
- LOCK (&frame->lock);
- {
- if (child_index == read_child) {
- local->read_child_returned = _gf_true;
- }
-
- if (afr_fop_failed (op_ret, op_errno))
- afr_transaction_fop_failed (frame, this, child_index);
-
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- local->cont.fsetattr.preop_buf = *preop;
- local->cont.fsetattr.postop_buf = *postop;
- }
-
- if (child_index == read_child) {
- local->cont.fsetattr.preop_buf = *preop;
- local->cont.fsetattr.postop_buf = *postop;
- }
-
- local->success_count++;
-
- if ((local->success_count >= priv->wait_count)
- && local->read_child_returned) {
- need_unwind = 1;
- }
- }
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (need_unwind)
- local->transaction.unwind (frame, this);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ preop, postop, xdata);
}
-int32_t
-afr_fsetattr_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_fsetattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_fsetattr_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fsetattr,
- local->fd,
- &local->cont.fsetattr.in_buf,
- local->cont.fsetattr.valid,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_fsetattr_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fsetattr,
+ local->fd, &local->cont.fsetattr.in_buf,
+ local->cont.fsetattr.valid, local->xdata_req);
return 0;
}
int
-afr_fsetattr_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-int
afr_fsetattr (call_frame_t *frame, xlator_t *this,
fd_t *fd, struct iatt *buf, int32_t valid, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t *transaction_frame = NULL;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ call_frame_t *transaction_frame = NULL;
int ret = -1;
- int op_errno = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int op_errno = ENOMEM;
priv = this->private;
QUORUM_CHECK(fsetattr,out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
local->cont.fsetattr.in_buf = *buf;
local->cont.fsetattr.valid = valid;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- local->transaction.fop = afr_fsetattr_wind;
- local->transaction.done = afr_fsetattr_done;
+ if (!local->xdata_req)
+ goto out;
+
+ local->transaction.wind = afr_fsetattr_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_fsetattr_unwind;
local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
- ret = afr_open_fd_fix (transaction_frame, this, _gf_false);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
+ local->op = GF_FOP_FSETATTR;
+
+ afr_fix_open (fd, this);
local->transaction.main_frame = frame;
local->transaction.start = LLONG_MAX - 1;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
-
- ret = 0;
-out:
+ ret = afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (fsetattr, frame, -1, op_errno, NULL, NULL, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (fsetattr, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
@@ -1360,19 +951,12 @@ afr_setxattr_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
- if (main_frame) {
- AFR_STACK_UNWIND (setxattr, main_frame,
- local->op_ret, local->op_errno,
- NULL);
- }
+ AFR_STACK_UNWIND (setxattr, main_frame, local->op_ret, local->op_errno,
+ local->xdata_rsp);
return 0;
}
@@ -1381,158 +965,94 @@ int
afr_setxattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int need_unwind = 0;
-
- local = frame->local;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- }
- local->success_count++;
-
- if (local->success_count == priv->child_count) {
- need_unwind = 1;
- }
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (need_unwind)
- local->transaction.unwind (frame, this);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ NULL, NULL, xdata);
}
int
-afr_setxattr_wind (call_frame_t *frame, xlator_t *this)
+afr_setxattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_setxattr_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->setxattr,
- &local->loc,
- local->cont.setxattr.dict,
- local->cont.setxattr.flags,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_setxattr_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->setxattr,
+ &local->loc, local->cont.setxattr.dict,
+ local->cont.setxattr.flags, local->xdata_req);
return 0;
}
int
-afr_setxattr_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-int
-afr_setxattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *dict, int32_t flags, dict_t *xdata)
+afr_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict,
+ int32_t flags, dict_t *xdata)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
call_frame_t *transaction_frame = NULL;
- data_pair_t *trav = NULL;
int ret = -1;
int op_errno = EINVAL;
- VALIDATE_OR_GOTO (this, out);
-
GF_IF_INTERNAL_XATTR_GOTO ("trusted.afr.*", dict,
- trav, op_errno, out);
+ op_errno, out);
GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.afr.*", dict,
- trav, op_errno, out);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this->private, out);
+ op_errno, out);
priv = this->private;
QUORUM_CHECK(setxattr,out);
+
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
goto out;
local->cont.setxattr.dict = dict_ref (dict);
local->cont.setxattr.flags = flags;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
- local->transaction.fop = afr_setxattr_wind;
- local->transaction.done = afr_setxattr_done;
+ local->transaction.wind = afr_setxattr_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_setxattr_unwind;
loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
local->transaction.main_frame = frame;
local->transaction.start = LLONG_MAX - 1;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
+ local->op = GF_FOP_SETXATTR;
- ret = 0;
-out:
+ ret = afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (setxattr, frame, -1, op_errno, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (setxattr, frame, -1, op_errno, NULL);
+
return 0;
}
@@ -1547,19 +1067,12 @@ afr_fsetxattr_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
- if (main_frame) {
- AFR_STACK_UNWIND (fsetxattr, main_frame,
- local->op_ret, local->op_errno,
- NULL);
- }
+ AFR_STACK_UNWIND (fsetxattr, main_frame, local->op_ret, local->op_errno,
+ local->xdata_rsp);
return 0;
}
@@ -1568,98 +1081,30 @@ int
afr_fsetxattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int need_unwind = 0;
-
- local = frame->local;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- }
- local->success_count++;
-
- if (local->success_count == priv->child_count) {
- need_unwind = 1;
- }
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- if (need_unwind)
- local->transaction.unwind (frame, this);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ NULL, NULL, xdata);
}
int
-afr_fsetxattr_wind (call_frame_t *frame, xlator_t *this)
+afr_fsetxattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
-
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_fsetxattr_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fsetxattr,
- local->fd,
- local->cont.fsetxattr.dict,
- local->cont.fsetxattr.flags,
- NULL);
-
- if (!--call_count)
- break;
- }
- }
-
+ STACK_WIND_COOKIE (frame, afr_fsetxattr_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fsetxattr,
+ local->fd, local->cont.fsetxattr.dict,
+ local->cont.fsetxattr.flags, local->xdata_req);
return 0;
}
int
-afr_fsetxattr_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = frame->local;
-
- local->transaction.unwind (frame, this);
-
- AFR_STACK_DESTROY (frame);
-
- return 0;
-}
-
-int
afr_fsetxattr (call_frame_t *frame, xlator_t *this,
fd_t *fd, dict_t *dict, int32_t flags, dict_t *xdata)
{
@@ -1667,64 +1112,63 @@ afr_fsetxattr (call_frame_t *frame, xlator_t *this,
afr_local_t *local = NULL;
call_frame_t *transaction_frame = NULL;
int ret = -1;
- int op_errno = EINVAL;
- data_pair_t *trav = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ int op_errno = ENOMEM;
GF_IF_INTERNAL_XATTR_GOTO ("trusted.afr.*", dict,
- trav, op_errno, out);
+ op_errno, out);
GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.afr.*", dict,
- trav, op_errno, out);
-
- if (ret)
- goto out;
+ op_errno, out);
priv = this->private;
QUORUM_CHECK(fsetxattr,out);
- AFR_LOCAL_ALLOC_OR_GOTO (local, out);
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
-
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
+ if (!transaction_frame)
goto out;
- }
- transaction_frame->local = local;
-
- local->op_ret = -1;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
local->cont.fsetxattr.dict = dict_ref (dict);
local->cont.fsetxattr.flags = flags;
- local->transaction.fop = afr_fsetxattr_wind;
- local->transaction.done = afr_fsetxattr_done;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->transaction.wind = afr_fsetxattr_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
local->transaction.unwind = afr_fsetxattr_unwind;
local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
+
+ local->op = GF_FOP_FSETXATTR;
local->transaction.main_frame = frame;
local->transaction.start = LLONG_MAX - 1;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
-
- ret = 0;
-out:
+ ret = afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (fsetxattr, frame, -1, op_errno, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (fsetxattr, frame, -1, op_errno, NULL);
return 0;
}
@@ -1742,19 +1186,12 @@ afr_removexattr_unwind (call_frame_t *frame, xlator_t *this)
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
- if (main_frame) {
- AFR_STACK_UNWIND (removexattr, main_frame,
- local->op_ret, local->op_errno,
- NULL);
- }
+ AFR_STACK_UNWIND (removexattr, main_frame, local->op_ret, local->op_errno,
+ local->xdata_rsp);
return 0;
}
@@ -1763,108 +1200,151 @@ int
afr_removexattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int call_count = -1;
- int need_unwind = 0;
-
- local = frame->local;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- }
- local->success_count++;
-
- if (local->success_count == priv->wait_count) {
- need_unwind = 1;
- }
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ NULL, NULL, xdata);
+}
- if (need_unwind)
- local->transaction.unwind (frame, this);
- call_count = afr_frame_return (frame);
+int
+afr_removexattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- }
+ local = frame->local;
+ priv = this->private;
+ STACK_WIND_COOKIE (frame, afr_removexattr_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->removexattr,
+ &local->loc, local->cont.removexattr.name,
+ local->xdata_req);
return 0;
}
-int32_t
-afr_removexattr_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_removexattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, const char *name, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
+
+ GF_IF_NATIVE_XATTR_GOTO ("trusted.afr.*",
+ name, op_errno, out);
+
+ GF_IF_NATIVE_XATTR_GOTO ("trusted.glusterfs.afr.*",
+ name, op_errno, out);
- local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
+ QUORUM_CHECK(removexattr,out);
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame)
+ goto out;
- local->call_count = call_count;
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_removexattr_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->removexattr,
- &local->loc,
- local->cont.removexattr.name,
- NULL);
-
- if (!--call_count)
- break;
- }
+ local->cont.removexattr.name = gf_strdup (name);
+
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->transaction.wind = afr_removexattr_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
+ local->transaction.unwind = afr_removexattr_unwind;
+
+ loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
+
+ local->op = GF_FOP_REMOVEXATTR;
+
+ local->transaction.main_frame = frame;
+ local->transaction.start = LLONG_MAX - 1;
+ local->transaction.len = 0;
+
+ ret = afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (removexattr, frame, -1, op_errno, NULL);
return 0;
}
-
+/* ffremovexattr */
int
-afr_removexattr_done (call_frame_t *frame, xlator_t *this)
+afr_fremovexattr_unwind (call_frame_t *frame, xlator_t *this)
{
- afr_local_t * local = frame->local;
+ afr_local_t * local = NULL;
+ call_frame_t *main_frame = NULL;
- local->transaction.unwind (frame, this);
+ local = frame->local;
- AFR_STACK_DESTROY (frame);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (fremovexattr, main_frame, local->op_ret, local->op_errno,
+ local->xdata_rsp);
return 0;
}
int
-afr_removexattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, const char *name, dict_t *xdata)
+afr_fremovexattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- call_frame_t *transaction_frame = NULL;
- int ret = -1;
- int op_errno = 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ NULL, NULL, xdata);
+}
- VALIDATE_OR_GOTO (this, out);
+
+int
+afr_fremovexattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ STACK_WIND_COOKIE (frame, afr_fremovexattr_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fremovexattr,
+ local->fd, local->cont.removexattr.name,
+ local->xdata_req);
+ return 0;
+}
+
+
+int
+afr_fremovexattr (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ const char *name, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
GF_IF_NATIVE_XATTR_GOTO ("trusted.afr.*",
name, op_errno, out);
@@ -1872,237 +1352,403 @@ afr_removexattr (call_frame_t *frame, xlator_t *this,
GF_IF_NATIVE_XATTR_GOTO ("trusted.glusterfs.afr.*",
name, op_errno, out);
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
+ priv = this->private;
- priv = this->private;
-
- QUORUM_CHECK(removexattr,out);
+ QUORUM_CHECK(fremovexattr, out);
transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- op_errno = ENOMEM;
+ if (!transaction_frame)
goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (transaction_frame->local, out);
- local = transaction_frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
goto out;
local->cont.removexattr.name = gf_strdup (name);
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- local->transaction.fop = afr_removexattr_wind;
- local->transaction.done = afr_removexattr_done;
- local->transaction.unwind = afr_removexattr_unwind;
+ if (!local->xdata_req)
+ goto out;
- loc_copy (&local->loc, loc);
+ local->transaction.wind = afr_fremovexattr_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
+ local->transaction.unwind = afr_fremovexattr_unwind;
+
+ local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
+
+ local->op = GF_FOP_FREMOVEXATTR;
local->transaction.main_frame = frame;
local->transaction.start = LLONG_MAX - 1;
local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
-
- ret = 0;
-out:
+ ret = afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
if (ret < 0) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (removexattr, frame, -1, op_errno, NULL);
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (fremovexattr, frame, -1, op_errno, NULL);
+
return 0;
}
-/* ffremovexattr */
+
int
-afr_fremovexattr_unwind (call_frame_t *frame, xlator_t *this)
+afr_fallocate_unwind (call_frame_t *frame, xlator_t *this)
{
afr_local_t * local = NULL;
call_frame_t *main_frame = NULL;
local = frame->local;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame)
- main_frame = local->transaction.main_frame;
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
- if (main_frame) {
- AFR_STACK_UNWIND (fremovexattr, main_frame,
- local->op_ret, local->op_errno,
- NULL);
- }
+ AFR_STACK_UNWIND (fallocate, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf, local->xdata_rsp);
return 0;
}
int
-afr_fremovexattr_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xdata)
+afr_fallocate_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- int call_count = -1;
- int need_unwind = 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ prebuf, postbuf, xdata);
+}
+
+
+int
+afr_fallocate_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
local = frame->local;
priv = this->private;
- LOCK (&frame->lock);
- {
- if (op_ret != -1) {
- if (local->success_count == 0) {
- local->op_ret = op_ret;
- }
- local->success_count++;
-
- if (local->success_count == priv->wait_count) {
- need_unwind = 1;
- }
- }
+ STACK_WIND_COOKIE (frame, afr_fallocate_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fallocate,
+ local->fd, local->cont.fallocate.mode,
+ local->cont.fallocate.offset,
+ local->cont.fallocate.len, local->xdata_req);
+ return 0;
+}
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
- if (need_unwind)
- local->transaction.unwind (frame, this);
+int
+afr_fallocate (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode,
+ off_t offset, size_t len, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ call_frame_t *transaction_frame = NULL;
+ afr_local_t *local = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
- call_count = afr_frame_return (frame);
+ priv = this->private;
- if (call_count == 0) {
- local->transaction.resume (frame, this);
+ QUORUM_CHECK(fallocate,out);
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame)
+ goto out;
+
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
+ goto out;
+
+ local->cont.fallocate.mode = mode;
+ local->cont.fallocate.offset = offset;
+ local->cont.fallocate.len = len;
+
+ local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
+
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->op = GF_FOP_FALLOCATE;
+
+ local->transaction.wind = afr_fallocate_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
+ local->transaction.unwind = afr_fallocate_unwind;
+
+ local->transaction.main_frame = frame;
+
+ local->transaction.start = local->cont.fallocate.offset;
+ local->transaction.len = 0;
+
+ afr_fix_open (fd, this);
+
+ ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL);
+ return 0;
+}
+
+
+/* }}} */
+
+/* {{{ discard */
+
+int
+afr_discard_unwind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = NULL;
+ call_frame_t *main_frame = NULL;
+
+ local = frame->local;
+
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+
+ AFR_STACK_UNWIND (discard, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf, local->xdata_rsp);
return 0;
}
-int32_t
-afr_fremovexattr_wind (call_frame_t *frame, xlator_t *this)
+int
+afr_discard_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ prebuf, postbuf, xdata);
+}
+
+
+int
+afr_discard_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- int call_count = -1;
- int i = 0;
local = frame->local;
priv = this->private;
- call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
- priv->child_count);
+ STACK_WIND_COOKIE (frame, afr_discard_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->discard,
+ local->fd, local->cont.discard.offset,
+ local->cont.discard.len, local->xdata_req);
+ return 0;
+}
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
- local->call_count = call_count;
+int
+afr_discard (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ size_t len, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
- for (i = 0; i < priv->child_count; i++) {
- if (local->transaction.pre_op[i]) {
- STACK_WIND_COOKIE (frame, afr_fremovexattr_wind_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fremovexattr,
- local->fd,
- local->cont.removexattr.name,
- NULL);
-
- if (!--call_count)
- break;
- }
+ priv = this->private;
+
+ QUORUM_CHECK(discard, out);
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame)
+ goto out;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ local->cont.discard.offset = offset;
+ local->cont.discard.len = len;
+
+ local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
+
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
+
+ if (!local->xdata_req)
+ goto out;
+
+ local->op = GF_FOP_DISCARD;
+
+ local->transaction.wind = afr_discard_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
+ local->transaction.unwind = afr_discard_unwind;
+
+ local->transaction.main_frame = frame;
+
+ local->transaction.start = local->cont.discard.offset;
+ local->transaction.len = 0;
+
+ afr_fix_open (fd, this);
+
+ ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (discard, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
+/* {{{ zerofill */
+
int
-afr_fremovexattr_done (call_frame_t *frame, xlator_t *this)
+afr_zerofill_unwind (call_frame_t *frame, xlator_t *this)
{
- afr_local_t * local = frame->local;
+ afr_local_t * local = NULL;
+ call_frame_t *main_frame = NULL;
- local->transaction.unwind (frame, this);
+ local = frame->local;
- AFR_STACK_DESTROY (frame);
+ main_frame = afr_transaction_detach_fop_frame (frame);
+ if (!main_frame)
+ return 0;
+ AFR_STACK_UNWIND (discard, main_frame, local->op_ret, local->op_errno,
+ &local->cont.inode_wfop.prebuf,
+ &local->cont.inode_wfop.postbuf, local->xdata_rsp);
return 0;
}
int
-afr_fremovexattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, const char *name, dict_t *xdata)
+afr_zerofill_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t *transaction_frame = NULL;
- int ret = -1;
- int op_ret = -1;
- int op_errno = 0;
+ return __afr_inode_write_cbk (frame, cookie, this, op_ret, op_errno,
+ prebuf, postbuf, xdata);
+}
- VALIDATE_OR_GOTO (this, out);
- GF_IF_NATIVE_XATTR_GOTO ("trusted.afr.*",
- name, op_errno, out);
+int
+afr_zerofill_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
- GF_IF_NATIVE_XATTR_GOTO ("trusted.glusterfs.afr.*",
- name, op_errno, out);
+ local = frame->local;
+ priv = this->private;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this->private, out);
+ STACK_WIND_COOKIE (frame, afr_zerofill_wind_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->zerofill,
+ local->fd, local->cont.zerofill.offset,
+ local->cont.zerofill.len, local->xdata_req);
+ return 0;
+}
+
+int
+afr_zerofill (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ size_t len, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ call_frame_t *transaction_frame = NULL;
+ int ret = -1;
+ int op_errno = ENOMEM;
priv = this->private;
- QUORUM_CHECK(fremovexattr, out);
+ QUORUM_CHECK(discard, out);
- transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- goto out;
- }
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame)
+ goto out;
- AFR_LOCAL_ALLOC_OR_GOTO (local, out);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ local->cont.zerofill.offset = offset;
+ local->cont.zerofill.len = len;
- transaction_frame->local = local;
+ local->fd = fd_ref (fd);
+ local->inode = inode_ref (fd->inode);
- local->op_ret = -1;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- local->cont.removexattr.name = gf_strdup (name);
+ if (!local->xdata_req)
+ goto out;
- local->transaction.fop = afr_fremovexattr_wind;
- local->transaction.done = afr_fremovexattr_done;
- local->transaction.unwind = afr_fremovexattr_unwind;
+ local->op = GF_FOP_ZEROFILL;
- local->fd = fd_ref (fd);
+ local->transaction.wind = afr_zerofill_wind;
+ local->transaction.fop = __afr_txn_write_fop;
+ local->transaction.done = __afr_txn_write_done;
+ local->transaction.unwind = afr_zerofill_unwind;
local->transaction.main_frame = frame;
- local->transaction.start = LLONG_MAX - 1;
- local->transaction.len = 0;
- afr_transaction (transaction_frame, this, AFR_METADATA_TRANSACTION);
+ local->transaction.start = local->cont.discard.offset;
+ local->transaction.len = len;
- op_ret = 0;
-out:
- if (op_ret == -1) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (fremovexattr, frame, op_ret, op_errno, NULL);
+ afr_fix_open (fd, this);
+
+ ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
}
+ return 0;
+out:
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (zerofill, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
}
+
+/* }}} */
+
+
diff --git a/xlators/cluster/afr/src/afr-inode-write.h b/xlators/cluster/afr/src/afr-inode-write.h
index ed11079fd..7b1fc5528 100644
--- a/xlators/cluster/afr/src/afr-inode-write.h
+++ b/xlators/cluster/afr/src/afr-inode-write.h
@@ -68,4 +68,15 @@ int32_t
afr_fremovexattr (call_frame_t *frame, xlator_t *this,
fd_t *fd, const char *name, dict_t *xdata);
+int
+afr_discard (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ size_t len, dict_t *xdata);
+
+int
+afr_fallocate (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode,
+ off_t offset, size_t len, dict_t *xdata);
+
+int
+afr_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ off_t len, dict_t *xdata);
#endif /* __INODE_WRITE_H__ */
diff --git a/xlators/cluster/afr/src/afr-lk-common.c b/xlators/cluster/afr/src/afr-lk-common.c
index 92356c82e..a2a758f35 100644
--- a/xlators/cluster/afr/src/afr-lk-common.c
+++ b/xlators/cluster/afr/src/afr-lk-common.c
@@ -55,7 +55,33 @@
} while (0);
int
-afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index);
+afr_entry_lockee_cmp (const void *l1, const void *l2)
+{
+ const afr_entry_lockee_t *r1 = l1;
+ const afr_entry_lockee_t *r2 = l2;
+ int ret = 0;
+ uuid_t gfid1 = {0};
+ uuid_t gfid2 = {0};
+
+ loc_gfid ((loc_t*)&r1->loc, gfid1);
+ loc_gfid ((loc_t*)&r2->loc, gfid2);
+ ret = uuid_compare (gfid1, gfid2);
+ /*Entrylks with NULL basename are the 'smallest'*/
+ if (ret == 0) {
+ if (!r1->basename)
+ return -1;
+ if (!r2->basename)
+ return 1;
+ ret = strcmp (r1->basename, r2->basename);
+ }
+
+ if (ret <= 0)
+ return -1;
+ else
+ return 1;
+}
+
+int afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index);
static int
afr_copy_locked_nodes (call_frame_t *frame, xlator_t *this);
@@ -125,16 +151,9 @@ internal_lock_count (call_frame_t *frame, xlator_t *this)
local = frame->local;
priv = this->private;
- if (local->fd) {
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i] && local->fd_open_on[i])
- ++call_count;
- }
- } else {
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i])
- ++call_count;
- }
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i])
+ ++call_count;
}
return call_count;
@@ -332,10 +351,13 @@ static void
afr_trace_entrylk_in (call_frame_t *frame, xlator_t *this,
afr_lock_call_type_t lock_call_type,
afr_lock_op_type_t lk_op_type, const char *basename,
- int32_t child_index)
+ int32_t cookie)
{
afr_local_t *local = NULL;
afr_internal_lock_t *int_lock = NULL;
+ afr_private_t *priv = NULL;
+ int child_index = 0;
+ int lockee_no = 0;
char lock[256];
char lockee[256];
@@ -343,28 +365,40 @@ afr_trace_entrylk_in (call_frame_t *frame, xlator_t *this,
local = frame->local;
int_lock = &local->internal_lock;
+ priv = this->private;
+
+ if (!priv->entrylk_trace) {
+ return;
+ }
+ lockee_no = cookie / priv->child_count;
+ child_index = cookie % priv->child_count;
afr_print_entrylk (lock, 256, basename, &frame->root->lk_owner);
- afr_print_lockee (lockee, 256, &local->loc, local->fd, child_index);
+ afr_print_lockee (lockee, 256, &int_lock->lockee[lockee_no].loc, local->fd,
+ child_index);
afr_set_lock_call_type (lock_call_type, lock_call_type_str, int_lock);
gf_log (this->name, GF_LOG_INFO,
- "[%s %s] Lock={%s} Lockee={%s} Number={%llu}",
+ "[%s %s] Lock={%s} Lockee={%s} Number={%llu}, Cookie={%d}",
lock_call_type_str,
lk_op_type == AFR_LOCK_OP ? "LOCK REQUEST" : "UNLOCK REQUEST",
lock, lockee,
- (unsigned long long) int_lock->lock_number);
+ (unsigned long long) int_lock->lock_number,
+ cookie);
}
static void
afr_trace_entrylk_out (call_frame_t *frame, xlator_t *this,
afr_lock_call_type_t lock_call_type,
afr_lock_op_type_t lk_op_type, const char *basename,
- int op_ret, int op_errno, int32_t child_index)
+ int op_ret, int op_errno, int32_t cookie)
{
afr_internal_lock_t *int_lock = NULL;
afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int lockee_no = 0;
+ int child_index = 0;
char lock[256];
char lockee[256];
@@ -373,20 +407,30 @@ afr_trace_entrylk_out (call_frame_t *frame, xlator_t *this,
local = frame->local;
int_lock = &local->internal_lock;
+ priv = this->private;
- afr_print_lockee (lockee, 256, &local->loc, local->fd, child_index);
+ if (!priv->entrylk_trace) {
+ return;
+ }
+ lockee_no = cookie / priv->child_count;
+ child_index = cookie % priv->child_count;
+
+ afr_print_entrylk (lock, 256, basename, &frame->root->lk_owner);
+ afr_print_lockee (lockee, 256, &int_lock->lockee[lockee_no].loc, local->fd,
+ child_index);
afr_set_lock_call_type (lock_call_type, lock_call_type_str, int_lock);
afr_print_verdict (op_ret, op_errno, verdict);
gf_log (this->name, GF_LOG_INFO,
- "[%s %s] [%s] Lock={%s} Lockee={%s} Number={%llu}",
+ "[%s %s] [%s] Lock={%s} Lockee={%s} Number={%llu} Cookie={%d}",
lock_call_type_str,
lk_op_type == AFR_LOCK_OP ? "LOCK REPLY" : "UNLOCK REPLY",
verdict,
lock, lockee,
- (unsigned long long) int_lock->lock_number);
+ (unsigned long long) int_lock->lock_number,
+ cookie);
}
@@ -439,6 +483,47 @@ is_afr_lock_transaction (afr_local_t *local)
return ret;
}
+int
+afr_init_entry_lockee (afr_entry_lockee_t *lockee, afr_local_t *local,
+ loc_t *loc, char *basename, int child_count)
+{
+ int ret = -1;
+
+ loc_copy (&lockee->loc, loc);
+ lockee->basename = (basename)? gf_strdup (basename): NULL;
+ if (basename && !lockee->basename)
+ goto out;
+
+ lockee->locked_count = 0;
+ lockee->locked_nodes = GF_CALLOC (child_count,
+ sizeof (*lockee->locked_nodes),
+ gf_afr_mt_afr_node_character);
+
+ if (!lockee->locked_nodes)
+ goto out;
+
+ ret = 0;
+out:
+ return ret;
+
+}
+
+void
+afr_entry_lockee_cleanup (afr_internal_lock_t *int_lock)
+{
+ int i = 0;
+
+ for (i = 0; i < int_lock->lockee_count; i++) {
+ loc_wipe (&int_lock->lockee[i].loc);
+ if (int_lock->lockee[i].basename)
+ GF_FREE (int_lock->lockee[i].basename);
+ if (int_lock->lockee[i].locked_nodes)
+ GF_FREE (int_lock->lockee[i].locked_nodes);
+ }
+
+ return;
+}
+
static int
initialize_entrylk_variables (call_frame_t *frame, xlator_t *this)
{
@@ -456,8 +541,13 @@ initialize_entrylk_variables (call_frame_t *frame, xlator_t *this)
int_lock->lock_op_ret = -1;
int_lock->lock_op_errno = 0;
- for (i = 0; i < priv->child_count; i++) {
- int_lock->entry_locked_nodes[i] = 0;
+ for (i = 0; i < AFR_LOCKEE_COUNT_MAX; i++) {
+ if (!int_lock->lockee[i].locked_nodes)
+ break;
+ int_lock->lockee[i].locked_count = 0;
+ memset (int_lock->lockee[i].locked_nodes, 0,
+ sizeof (*int_lock->lockee[i].locked_nodes) *
+ priv->child_count);
}
return 0;
@@ -469,37 +559,37 @@ initialize_inodelk_variables (call_frame_t *frame, xlator_t *this)
afr_local_t *local = NULL;
afr_internal_lock_t *int_lock = NULL;
afr_private_t *priv = NULL;
- int i = 0;
+ afr_inodelk_t *inodelk = NULL;
priv = this->private;
local = frame->local;
int_lock = &local->internal_lock;
- int_lock->inodelk_lock_count = 0;
- int_lock->lock_op_ret = -1;
- int_lock->lock_op_errno = 0;
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
- for (i = 0; i < priv->child_count; i++) {
- int_lock->inode_locked_nodes[i] = 0;
- }
+ inodelk->lock_count = 0;
+ int_lock->lk_attempted_count = 0;
+ int_lock->lock_op_ret = -1;
+ int_lock->lock_op_errno = 0;
+
+ memset (inodelk->locked_nodes, 0,
+ sizeof (*inodelk->locked_nodes) * priv->child_count);
+ memset (int_lock->locked_nodes, 0,
+ sizeof (*int_lock->locked_nodes) * priv->child_count);
return 0;
}
-loc_t *
-lower_path (loc_t *l1, const char *b1, loc_t *l2, const char *b2)
+int
+afr_lockee_locked_nodes_count (afr_internal_lock_t *int_lock)
{
- int ret = 0;
-
- ret = uuid_compare (l1->inode->gfid, l2->inode->gfid);
+ int call_count = 0;
+ int i = 0;
- if (ret == 0)
- ret = strcmp (b1, b2);
+ for (i = 0; i < int_lock->lockee_count; i++)
+ call_count += int_lock->lockee[i].locked_count;
- if (ret <= 0)
- return l1;
- else
- return l2;
+ return call_count;
}
int
@@ -550,7 +640,9 @@ afr_unlock_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
{
afr_local_t *local = NULL;
afr_internal_lock_t *int_lock = NULL;
+ afr_inodelk_t *inodelk = NULL;
int32_t child_index = (long)cookie;
+ afr_private_t *priv = NULL;
local = frame->local;
int_lock = &local->internal_lock;
@@ -559,14 +651,18 @@ afr_unlock_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
AFR_UNLOCK_OP, NULL, op_ret,
op_errno, child_index);
+ priv = this->private;
+
if (op_ret < 0 && op_errno != ENOTCONN && op_errno != EBADFD) {
- gf_log (this->name, GF_LOG_INFO, "%s: unlock failed on %d "
- "unlock by %s", local->loc.path, child_index,
+ gf_log (this->name, GF_LOG_INFO, "%s: unlock failed on subvolume %s "
+ "with lock owner %s", local->loc.path,
+ priv->children[child_index]->name,
lkowner_utoa (&frame->root->lk_owner));
}
- int_lock->inode_locked_nodes[child_index] &= LOCKED_NO;
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
+ inodelk->locked_nodes[child_index] &= LOCKED_NO;
if (local->transaction.eager_lock)
local->transaction.eager_lock[child_index] = 0;
@@ -580,6 +676,7 @@ static int
afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
{
afr_internal_lock_t *int_lock = NULL;
+ afr_inodelk_t *inodelk = NULL;
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
struct gf_flock flock = {0,};
@@ -589,19 +686,20 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
int i = 0;
int piggyback = 0;
afr_fd_ctx_t *fd_ctx = NULL;
- gf_boolean_t fd_lock_owner = _gf_false;
local = frame->local;
int_lock = &local->internal_lock;
priv = this->private;
- flock.l_start = int_lock->lk_flock.l_start;
- flock.l_len = int_lock->lk_flock.l_len;
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
+
+ flock.l_start = inodelk->flock.l_start;
+ flock.l_len = inodelk->flock.l_len;
flock.l_type = F_UNLCK;
full_flock.l_type = F_UNLCK;
- call_count = afr_locked_nodes_count (int_lock->inode_locked_nodes,
+ call_count = afr_locked_nodes_count (inodelk->locked_nodes,
priv->child_count);
int_lock->lk_call_count = call_count;
@@ -617,18 +715,12 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
fd_ctx = afr_fd_ctx_get (local->fd, this);
for (i = 0; i < priv->child_count; i++) {
- if ((int_lock->inode_locked_nodes[i] & LOCKED_YES)
- != LOCKED_YES)
+ if ((inodelk->locked_nodes[i] & LOCKED_YES) != LOCKED_YES)
continue;
if (local->fd) {
flock_use = &flock;
if (!local->transaction.eager_lock[i]) {
- if (fd_lock_owner) {
- afr_set_lk_owner (frame, this,
- frame->root);
- fd_lock_owner = _gf_false;
- }
goto wind;
}
@@ -645,10 +737,6 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
}
UNLOCK (&local->fd->lock);
- if (!fd_lock_owner) {
- afr_set_lk_owner (frame, this, local->fd);
- fd_lock_owner = _gf_true;
- }
if (piggyback) {
afr_unlock_inodelk_cbk (frame, (void *) (long) i,
this, 1, 0, NULL);
@@ -668,7 +756,7 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
(void *) (long)i,
priv->children[i],
priv->children[i]->fops->finodelk,
- this->name, local->fd,
+ int_lock->domain, local->fd,
F_SETLK, flock_use, NULL);
if (!--call_count)
@@ -683,7 +771,7 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
(void *) (long)i,
priv->children[i],
priv->children[i]->fops->inodelk,
- this->name, &local->loc,
+ int_lock->domain, &local->loc,
F_SETLK, &flock, NULL);
if (!--call_count)
@@ -699,13 +787,22 @@ afr_unlock_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
afr_local_t *local = NULL;
- int32_t child_index = (long)cookie;
+ afr_private_t *priv = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ int32_t child_index = 0;
+ int lockee_no = 0;
+
+ priv = this->private;
+ lockee_no = (int)((long) cookie) / priv->child_count;
+ child_index = (int) ((long) cookie) % priv->child_count;
local = frame->local;
+ int_lock = &local->internal_lock;
AFR_TRACE_ENTRYLK_OUT (frame, this, AFR_ENTRYLK_TRANSACTION,
- AFR_UNLOCK_OP, NULL, op_ret,
- op_errno, child_index);
+ AFR_UNLOCK_OP,
+ int_lock->lockee[lockee_no].basename, op_ret,
+ op_errno, (int) ((long)cookie));
if (op_ret < 0) {
gf_log (this->name, GF_LOG_ERROR,
@@ -713,6 +810,7 @@ afr_unlock_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
local->loc.path, child_index, strerror (op_errno));
}
+ int_lock->lockee[lockee_no].locked_nodes[child_index] &= LOCKED_NO;
afr_unlock_common_cbk (frame, cookie, this, op_ret, op_errno, NULL);
return 0;
@@ -721,24 +819,22 @@ afr_unlock_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
static int
afr_unlock_entrylk (call_frame_t *frame, xlator_t *this)
{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- const char *basename = NULL;
- loc_t *loc = NULL;
- int call_count = 0;
- int i = -1;
+ afr_internal_lock_t *int_lock = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = 0;
+ int index = 0;
+ int lockee_no = 0;
+ int copies = 0;
+ int i = -1;
local = frame->local;
int_lock = &local->internal_lock;
priv = this->private;
+ copies = priv->child_count;
- basename = int_lock->lk_basename;
- if (int_lock->lk_loc)
- loc = int_lock->lk_loc;
+ call_count = afr_lockee_locked_nodes_count (int_lock);
- call_count = afr_locked_nodes_count (int_lock->entry_locked_nodes,
- priv->child_count);
int_lock->lk_call_count = call_count;
if (!call_count){
@@ -748,18 +844,22 @@ afr_unlock_entrylk (call_frame_t *frame, xlator_t *this)
goto out;
}
- for (i = 0; i < priv->child_count; i++) {
- if (int_lock->entry_locked_nodes[i] & LOCKED_YES) {
- AFR_TRACE_ENTRYLK_IN (frame, this,
- AFR_ENTRYLK_NB_TRANSACTION,
- AFR_UNLOCK_OP, basename, i);
+ for (i = 0; i < int_lock->lockee_count * priv->child_count; i++) {
+ lockee_no = i / copies;
+ index = i % copies;
+ if (int_lock->lockee[lockee_no].locked_nodes[index] & LOCKED_YES) {
+ AFR_TRACE_ENTRYLK_IN (frame, this, AFR_ENTRYLK_NB_TRANSACTION,
+ AFR_UNLOCK_OP,
+ int_lock->lockee[lockee_no].basename,
+ i);
STACK_WIND_COOKIE (frame, afr_unlock_entrylk_cbk,
(void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->entrylk,
- this->name,
- loc, basename,
+ priv->children[index],
+ priv->children[index]->fops->entrylk,
+ int_lock->domain,
+ &int_lock->lockee[lockee_no].loc,
+ int_lock->lockee[lockee_no].basename,
ENTRYLK_UNLOCK, ENTRYLK_WRLCK, NULL);
if (!--call_count)
@@ -776,13 +876,20 @@ static int32_t
afr_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- int child_index = (long) cookie;
+ afr_internal_lock_t *int_lock = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int cky = (long) cookie;
+ int child_index = 0;
+ int lockee_no = 0;
+ priv = this->private;
local = frame->local;
int_lock = &local->internal_lock;
+ child_index = ((int)cky) % priv->child_count;
+ lockee_no = ((int)cky) / priv->child_count;
+
LOCK (&frame->lock);
{
if (op_ret == -1) {
@@ -798,6 +905,8 @@ afr_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
local->op_errno = op_errno;
int_lock->lock_op_errno = op_errno;
}
+
+ int_lock->lk_attempted_count++;
}
UNLOCK (&frame->lock);
@@ -806,10 +915,17 @@ afr_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
afr_unlock (frame, this);
} else {
if (op_ret == 0) {
- int_lock->locked_nodes[child_index] |= LOCKED_YES;
- int_lock->lock_count++;
+ if (local->transaction.type == AFR_ENTRY_TRANSACTION ||
+ local->transaction.type == AFR_ENTRY_RENAME_TRANSACTION) {
+ int_lock->lockee[lockee_no].locked_nodes[child_index] |= LOCKED_YES;
+ int_lock->lockee[lockee_no].locked_count++;
+ int_lock->entrylk_lock_count++;
+ } else {
+ int_lock->locked_nodes[child_index] |= LOCKED_YES;
+ int_lock->lock_count++;
+ }
}
- afr_lock_blocking (frame, this, child_index + 1);
+ afr_lock_blocking (frame, this, cky + 1);
}
return 0;
@@ -829,79 +945,6 @@ afr_blocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
}
static int32_t
-afr_lock_lower_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xdata)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- loc_t *lower = NULL;
- loc_t *higher = NULL;
- const char *higher_name = NULL;
- int child_index = (long) cookie;
-
- priv = this->private;
- local = frame->local;
- int_lock = &local->internal_lock;
-
- LOCK (&frame->lock);
- {
- if (op_ret == -1) {
- if (op_errno == ENOSYS) {
- /* return ENOTSUP */
-
- gf_log (this->name, GF_LOG_ERROR,
- "subvolume does not support locking. "
- "please load features/locks xlator on server");
-
- local->op_ret = op_ret;
- }
-
- local->op_errno = op_errno;
- }
- }
- UNLOCK (&frame->lock);
-
- if (op_ret != 0) {
- afr_copy_locked_nodes (frame, this);
- afr_unlock (frame, this);
- goto out;
- } else {
- int_lock->lower_locked_nodes[child_index] |= LOCKED_LOWER;
- int_lock->lock_count++;
- }
-
- /* The lower path has been locked. Now lock the higher path */
-
- lower = lower_path (&local->transaction.parent_loc,
- local->transaction.basename,
- &local->transaction.new_parent_loc,
- local->transaction.new_basename);
-
- higher = (lower == &local->transaction.parent_loc ?
- &local->transaction.new_parent_loc :
- &local->transaction.parent_loc);
-
- higher_name = (higher == &local->transaction.parent_loc ?
- local->transaction.basename :
- local->transaction.new_basename);
-
- AFR_TRACE_ENTRYLK_IN (frame, this, AFR_ENTRYLK_TRANSACTION,
- AFR_LOCK_OP, higher_name, child_index);
-
-
- STACK_WIND_COOKIE (frame, afr_lock_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->entrylk,
- this->name, higher, higher_name,
- ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL);
-
-out:
- return 0;
-}
-
-static int32_t
afr_blocking_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
@@ -917,6 +960,7 @@ static int
afr_copy_locked_nodes (call_frame_t *frame, xlator_t *this)
{
afr_internal_lock_t *int_lock = NULL;
+ afr_inodelk_t *inodelk = NULL;
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
@@ -927,18 +971,16 @@ afr_copy_locked_nodes (call_frame_t *frame, xlator_t *this)
switch (local->transaction.type) {
case AFR_DATA_TRANSACTION:
case AFR_METADATA_TRANSACTION:
- memcpy (int_lock->inode_locked_nodes,
- int_lock->locked_nodes,
- priv->child_count);
- int_lock->inodelk_lock_count = int_lock->lock_count;
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
+ memcpy (inodelk->locked_nodes, int_lock->locked_nodes,
+ sizeof (*inodelk->locked_nodes) * priv->child_count);
+ inodelk->lock_count = int_lock->lock_count;
break;
case AFR_ENTRY_RENAME_TRANSACTION:
case AFR_ENTRY_TRANSACTION:
- memcpy (int_lock->entry_locked_nodes,
- int_lock->locked_nodes,
- priv->child_count);
- int_lock->entrylk_lock_count = int_lock->lock_count;
+ /*entrylk_count is being used in both non-blocking and blocking
+ * modes */
break;
}
@@ -946,25 +988,67 @@ afr_copy_locked_nodes (call_frame_t *frame, xlator_t *this)
}
+static inline gf_boolean_t
+afr_is_entrylk (afr_internal_lock_t *int_lock,
+ afr_transaction_type trans_type)
+{
+ gf_boolean_t is_entrylk = _gf_false;
+
+ if ((int_lock->transaction_lk_type == AFR_SELFHEAL_LK) &&
+ int_lock->selfheal_lk_type == AFR_ENTRY_SELF_HEAL_LK) {
+
+ is_entrylk = _gf_true;
+
+ } else if ((int_lock->transaction_lk_type == AFR_TRANSACTION_LK) &&
+ (trans_type == AFR_ENTRY_TRANSACTION ||
+ trans_type == AFR_ENTRY_RENAME_TRANSACTION)) {
+
+ is_entrylk = _gf_true;
+
+ } else {
+ is_entrylk = _gf_false;
+ }
+
+ return is_entrylk;
+}
+
+static gf_boolean_t
+_is_lock_wind_needed (afr_local_t *local, int child_index)
+{
+ if (!local->child_up[child_index])
+ return _gf_false;
+
+ return _gf_true;
+}
+
int
-afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
+afr_lock_blocking (call_frame_t *frame, xlator_t *this, int cookie)
{
afr_internal_lock_t *int_lock = NULL;
+ afr_inodelk_t *inodelk = NULL;
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
- loc_t *lower = NULL;
- const char *lower_name = NULL;
struct gf_flock flock = {0,};
uint64_t ctx = 0;
int ret = 0;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- priv = this->private;
-
- flock.l_start = int_lock->lk_flock.l_start;
- flock.l_len = int_lock->lk_flock.l_len;
- flock.l_type = int_lock->lk_flock.l_type;
+ int child_index = 0;
+ int lockee_no = 0;
+ gf_boolean_t is_entrylk = _gf_false;
+
+ local = frame->local;
+ int_lock = &local->internal_lock;
+ priv = this->private;
+ child_index = cookie % priv->child_count;
+ lockee_no = cookie / priv->child_count;
+ is_entrylk = afr_is_entrylk (int_lock, local->transaction.type);
+
+
+ if (!is_entrylk) {
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
+ flock.l_start = inodelk->flock.l_start;
+ flock.l_len = inodelk->flock.l_len;
+ flock.l_type = inodelk->flock.l_type;
+ }
if (local->fd) {
ret = fd_ctx_get (local->fd, this, &ctx);
@@ -983,42 +1067,26 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
return 0;
}
-
- /* skip over children that or down
- or don't have the fd open */
-
- while ((child_index < priv->child_count)
- && (!local->child_up[child_index] ||
- !local->fd_open_on[child_index]))
-
- child_index++;
- } else {
- /* skip over children that are down */
- while ((child_index < priv->child_count)
- && !local->child_up[child_index])
- child_index++;
}
- if ((child_index == priv->child_count) &&
- int_lock->lock_count == 0) {
-
- gf_log (this->name, GF_LOG_INFO,
- "unable to lock on even one child");
-
- local->op_ret = -1;
- int_lock->lock_op_ret = -1;
+ if (int_lock->lk_expected_count == int_lock->lk_attempted_count) {
+ if ((is_entrylk && int_lock->entrylk_lock_count == 0) ||
+ (!is_entrylk && int_lock->lock_count == 0)) {
+ gf_log (this->name, GF_LOG_INFO,
+ "unable to lock on even one child");
- afr_copy_locked_nodes (frame, this);
+ local->op_ret = -1;
+ int_lock->lock_op_ret = -1;
- afr_unlock(frame, this);
+ afr_copy_locked_nodes (frame, this);
- return 0;
+ afr_unlock(frame, this);
+ return 0;
+ }
}
- if ((child_index == priv->child_count)
- || (int_lock->lock_count == int_lock->lk_expected_count)) {
-
+ if (int_lock->lk_expected_count == int_lock->lk_attempted_count) {
/* we're done locking */
gf_log (this->name, GF_LOG_DEBUG,
@@ -1031,6 +1099,11 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
return 0;
}
+ if (!_is_lock_wind_needed (local, child_index)) {
+ afr_lock_blocking (frame, this, cookie + 1);
+ return 0;
+ }
+
switch (local->transaction.type) {
case AFR_DATA_TRANSACTION:
case AFR_METADATA_TRANSACTION:
@@ -1045,7 +1118,7 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->finodelk,
- this->name, local->fd,
+ int_lock->domain, local->fd,
F_SETLKW, &flock, NULL);
} else {
@@ -1058,50 +1131,29 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->inodelk,
- this->name, &local->loc,
+ int_lock->domain, &local->loc,
F_SETLKW, &flock, NULL);
}
break;
case AFR_ENTRY_RENAME_TRANSACTION:
- {
- lower = lower_path (&local->transaction.parent_loc,
- local->transaction.basename,
- &local->transaction.new_parent_loc,
- local->transaction.new_basename);
-
- lower_name = (lower == &local->transaction.parent_loc ?
- local->transaction.basename :
- local->transaction.new_basename);
-
- AFR_TRACE_ENTRYLK_IN (frame, this, AFR_ENTRYLK_TRANSACTION,
- AFR_LOCK_OP, lower_name, child_index);
-
-
- STACK_WIND_COOKIE (frame, afr_lock_lower_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->entrylk,
- this->name, lower, lower_name,
- ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL);
-
- break;
- }
-
case AFR_ENTRY_TRANSACTION:
+ /*Accounting for child_index increments on 'down'
+ *and 'fd-less' children */
+
if (local->fd) {
- AFR_TRACE_ENTRYLK_IN (frame, this,
- AFR_ENTRYLK_TRANSACTION,
- AFR_LOCK_OP, local->transaction.basename,
- child_index);
+ AFR_TRACE_ENTRYLK_IN (frame, this, AFR_ENTRYLK_TRANSACTION,
+ AFR_LOCK_OP,
+ int_lock->lockee[lockee_no].basename,
+ cookie);
STACK_WIND_COOKIE (frame, afr_blocking_entrylk_cbk,
- (void *) (long) child_index,
+ (void *) (long) cookie,
priv->children[child_index],
priv->children[child_index]->fops->fentrylk,
- this->name, local->fd,
- local->transaction.basename,
+ int_lock->domain, local->fd,
+ int_lock->lockee[lockee_no].basename,
ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL);
} else {
AFR_TRACE_ENTRYLK_IN (frame, this,
@@ -1110,12 +1162,12 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
child_index);
STACK_WIND_COOKIE (frame, afr_blocking_entrylk_cbk,
- (void *) (long) child_index,
+ (void *) (long) cookie,
priv->children[child_index],
priv->children[child_index]->fops->entrylk,
- this->name,
- &local->transaction.parent_loc,
- local->transaction.basename,
+ int_lock->domain,
+ &int_lock->lockee[lockee_no].loc,
+ int_lock->lockee[lockee_no].basename,
ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL);
}
@@ -1144,11 +1196,11 @@ afr_blocking_lock (call_frame_t *frame, xlator_t *this)
break;
case AFR_ENTRY_RENAME_TRANSACTION:
- up_count = afr_up_children_count (local->child_up,
- priv->child_count);
- int_lock->lk_expected_count = 2 * up_count;
- //fallthrough
case AFR_ENTRY_TRANSACTION:
+ up_count = AFR_COUNT (local->child_up, priv->child_count);
+ int_lock->lk_call_count = int_lock->lk_expected_count
+ = (int_lock->lockee_count *
+ up_count);
initialize_entrylk_variables (frame, this);
break;
}
@@ -1164,35 +1216,48 @@ afr_nonblocking_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
{
afr_internal_lock_t *int_lock = NULL;
afr_local_t *local = NULL;
- int call_count = 0;
- int child_index = (long) cookie;
+ int call_count = 0;
+ int child_index = (long) cookie;
+ int copies = 0;
+ int index = 0;
+ int lockee_no = 0;
+ afr_private_t *priv = NULL;
+
+ priv = this->private;
+
+ copies = priv->child_count;
+ index = child_index % copies;
+ lockee_no = child_index / copies;
local = frame->local;
int_lock = &local->internal_lock;
AFR_TRACE_ENTRYLK_OUT (frame, this, AFR_ENTRYLK_TRANSACTION,
- AFR_LOCK_OP, NULL, op_ret,
+ AFR_LOCK_OP,
+ int_lock->lockee[lockee_no].basename, op_ret,
op_errno, (long) cookie);
- if (op_ret < 0 ) {
- if (op_errno == ENOSYS) {
+ LOCK (&frame->lock);
+ {
+ if (op_ret < 0 ) {
+ if (op_errno == ENOSYS) {
/* return ENOTSUP */
- gf_log (this->name, GF_LOG_ERROR,
- "subvolume does not support locking. "
- "please load features/locks xlator on server");
- local->op_ret = op_ret;
- int_lock->lock_op_ret = op_ret;
-
- int_lock->lock_op_errno = op_errno;
- local->op_errno = op_errno;
- }
- } else if (op_ret == 0) {
- int_lock->entry_locked_nodes[child_index] |= LOCKED_YES;
- int_lock->entrylk_lock_count++;
- }
+ gf_log (this->name, GF_LOG_ERROR,
+ "subvolume does not support locking. "
+ "please load features/locks xlator on server");
+ local->op_ret = op_ret;
+ int_lock->lock_op_ret = op_ret;
+
+ int_lock->lock_op_errno = op_errno;
+ local->op_errno = op_errno;
+ }
+ } else if (op_ret == 0) {
+ int_lock->lockee[lockee_no].locked_nodes[index] |= \
+ LOCKED_YES;
+ int_lock->lockee[lockee_no].locked_count++;
+ int_lock->entrylk_lock_count++;
+ }
- LOCK (&frame->lock);
- {
call_count = --int_lock->lk_call_count;
}
UNLOCK (&frame->lock);
@@ -1222,42 +1287,26 @@ afr_nonblocking_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
return 0;
}
-void
-afr_mark_fd_open_on (afr_local_t *local, afr_fd_ctx_t *fd_ctx,
- size_t child_count)
-{
- int i = 0;
-
- GF_ASSERT (local->fd_open_on);
-
- memset (local->fd_open_on, 0, sizeof (*local->fd_open_on)*child_count);
- for (i = 0; i < child_count; i++)
- if (fd_ctx->opened_on[i] == AFR_FD_OPENED)
- local->fd_open_on[i] = 1;
-}
-
int
afr_nonblocking_entrylk (call_frame_t *frame, xlator_t *this)
{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_fd_ctx_t *fd_ctx = NULL;
- const char *basename = NULL;
- loc_t *loc = NULL;
- int32_t call_count = 0;
+ afr_internal_lock_t *int_lock = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ afr_fd_ctx_t *fd_ctx = NULL;
+ int copies = 0;
+ int index = 0;
+ int lockee_no = 0;
+ int32_t call_count = 0;
int i = 0;
local = frame->local;
int_lock = &local->internal_lock;
priv = this->private;
+ copies = priv->child_count;
initialize_entrylk_variables (frame, this);
- basename = int_lock->lk_basename;
- if (int_lock->lk_loc)
- loc = int_lock->lk_loc;
-
if (local->fd) {
fd_ctx = afr_fd_ctx_get (local->fd, this);
if (!fd_ctx) {
@@ -1270,11 +1319,11 @@ afr_nonblocking_entrylk (call_frame_t *frame, xlator_t *this)
local->op_errno = EINVAL;
int_lock->lock_op_errno = EINVAL;
+ afr_unlock (frame, this);
return -1;
}
- afr_mark_fd_open_on (local, fd_ctx, priv->child_count);
- call_count = internal_lock_count (frame, this);
+ call_count = int_lock->lockee_count * internal_lock_count (frame, this);
int_lock->lk_call_count = call_count;
int_lock->lk_expected_count = call_count;
@@ -1287,46 +1336,52 @@ afr_nonblocking_entrylk (call_frame_t *frame, xlator_t *this)
/* Send non-blocking entrylk calls only on up children
and where the fd has been opened */
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i] && local->fd_open_on[i]) {
- AFR_TRACE_ENTRYLK_IN (frame, this,
- AFR_ENTRYLK_NB_TRANSACTION,
- AFR_LOCK_OP, basename, i);
+ for (i = 0; i < int_lock->lockee_count*priv->child_count; i++) {
+ index = i%copies;
+ lockee_no = i/copies;
+ if (local->child_up[index]) {
+ AFR_TRACE_ENTRYLK_IN (frame, this, AFR_ENTRYLK_NB_TRANSACTION,
+ AFR_LOCK_OP,
+ int_lock->lockee[lockee_no].basename,
+ i);
STACK_WIND_COOKIE (frame, afr_nonblocking_entrylk_cbk,
(void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fentrylk,
+ priv->children[index],
+ priv->children[index]->fops->fentrylk,
this->name, local->fd,
- basename,
+ int_lock->lockee[lockee_no].basename,
ENTRYLK_LOCK_NB, ENTRYLK_WRLCK,
NULL);
+ if (!--call_count)
+ break;
}
}
} else {
- GF_ASSERT (loc);
-
- call_count = internal_lock_count (frame, this);
+ call_count = int_lock->lockee_count * internal_lock_count (frame, this);
int_lock->lk_call_count = call_count;
int_lock->lk_expected_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i]) {
- AFR_TRACE_ENTRYLK_IN (frame, this,
- AFR_ENTRYLK_NB_TRANSACTION,
- AFR_LOCK_OP, basename, i);
+ for (i = 0; i < int_lock->lockee_count*priv->child_count; i++) {
+ index = i%copies;
+ lockee_no = i/copies;
+ if (local->child_up[index]) {
+ AFR_TRACE_ENTRYLK_IN (frame, this, AFR_ENTRYLK_NB_TRANSACTION,
+ AFR_LOCK_OP,
+ int_lock->lockee[lockee_no].basename,
+ i);
STACK_WIND_COOKIE (frame, afr_nonblocking_entrylk_cbk,
(void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->entrylk,
- this->name, loc, basename,
+ priv->children[index],
+ priv->children[index]->fops->entrylk,
+ this->name, &int_lock->lockee[lockee_no].loc,
+ int_lock->lockee[lockee_no].basename,
ENTRYLK_LOCK_NB, ENTRYLK_WRLCK,
NULL);
if (!--call_count)
break;
-
}
}
}
@@ -1339,6 +1394,7 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
afr_internal_lock_t *int_lock = NULL;
+ afr_inodelk_t *inodelk = NULL;
afr_local_t *local = NULL;
int call_count = 0;
int child_index = (long) cookie;
@@ -1347,58 +1403,57 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
local = frame->local;
int_lock = &local->internal_lock;
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
AFR_TRACE_INODELK_OUT (frame, this, AFR_INODELK_NB_TRANSACTION,
AFR_LOCK_OP, NULL, op_ret,
op_errno, (long) cookie);
- if (op_ret < 0) {
- if (op_errno == ENOSYS) {
- /* return ENOTSUP */
- gf_log (this->name, GF_LOG_ERROR,
- "subvolume does not support locking. "
- "please load features/locks xlator on server");
- local->op_ret = op_ret;
- int_lock->lock_op_ret = op_ret;
- int_lock->lock_op_errno = op_errno;
- local->op_errno = op_errno;
- }
- if (local->transaction.eager_lock)
- local->transaction.eager_lock[child_index] = 0;
- } else {
- int_lock->inode_locked_nodes[child_index]
- |= LOCKED_YES;
- int_lock->inodelk_lock_count++;
-
- if (local->transaction.eager_lock &&
- local->transaction.eager_lock[child_index] && local->fd) {
- fd_ctx = afr_fd_ctx_get (local->fd, this);
- /* piggybacked */
-
- if (op_ret == 1) {
- /* piggybacked */
- } else if (op_ret == 0) {
- /* lock acquired from server */
- LOCK (&local->fd->lock);
- {
- fd_ctx->lock_acquired[child_index]++;
- }
- UNLOCK (&local->fd->lock);
- }
- }
- }
+ if (local->fd)
+ fd_ctx = afr_fd_ctx_get (local->fd, this);
LOCK (&frame->lock);
{
+ if (op_ret < 0) {
+ if (op_errno == ENOSYS) {
+ /* return ENOTSUP */
+ gf_log (this->name, GF_LOG_ERROR,
+ "subvolume does not support locking. "
+ "please load features/locks xlator on "
+ "server");
+ local->op_ret = op_ret;
+ int_lock->lock_op_ret = op_ret;
+ int_lock->lock_op_errno = op_errno;
+ local->op_errno = op_errno;
+ }
+ if (local->transaction.eager_lock)
+ local->transaction.eager_lock[child_index] = 0;
+ } else {
+ inodelk->locked_nodes[child_index] |= LOCKED_YES;
+ inodelk->lock_count++;
+
+ if (local->transaction.eager_lock &&
+ local->transaction.eager_lock[child_index] &&
+ local->fd) {
+ /* piggybacked */
+ if (op_ret == 1) {
+ /* piggybacked */
+ } else if (op_ret == 0) {
+ /* lock acquired from server */
+ fd_ctx->lock_acquired[child_index]++;
+ }
+ }
+ }
+
call_count = --int_lock->lk_call_count;
}
UNLOCK (&frame->lock);
+
if (call_count == 0) {
gf_log (this->name, GF_LOG_TRACE,
"Last inode locking reply received");
/* all locks successful. Proceed to call FOP */
- if (int_lock->inodelk_lock_count ==
- int_lock->lk_expected_count) {
+ if (inodelk->lock_count == int_lock->lk_expected_count) {
gf_log (this->name, GF_LOG_TRACE,
"All servers locked. Calling the cbk");
int_lock->lock_op_ret = 0;
@@ -1422,6 +1477,7 @@ int
afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
{
afr_internal_lock_t *int_lock = NULL;
+ afr_inodelk_t *inodelk = NULL;
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
afr_fd_ctx_t *fd_ctx = NULL;
@@ -1432,17 +1488,18 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
struct gf_flock full_flock = {0,};
struct gf_flock *flock_use = NULL;
int piggyback = 0;
- gf_boolean_t fd_lock_owner = _gf_false;
local = frame->local;
int_lock = &local->internal_lock;
priv = this->private;
- flock.l_start = int_lock->lk_flock.l_start;
- flock.l_len = int_lock->lk_flock.l_len;
- flock.l_type = int_lock->lk_flock.l_type;
+ inodelk = afr_get_inodelk (int_lock, int_lock->domain);
+
+ flock.l_start = inodelk->flock.l_start;
+ flock.l_len = inodelk->flock.l_len;
+ flock.l_type = inodelk->flock.l_type;
- full_flock.l_type = int_lock->lk_flock.l_type;
+ full_flock.l_type = inodelk->flock.l_type;
initialize_inodelk_variables (frame, this);
@@ -1458,11 +1515,11 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
local->op_errno = EINVAL;
int_lock->lock_op_errno = EINVAL;
+ afr_unlock (frame, this);
ret = -1;
goto out;
}
- afr_mark_fd_open_on (local, fd_ctx, priv->child_count);
call_count = internal_lock_count (frame, this);
int_lock->lk_call_count = call_count;
int_lock->lk_expected_count = call_count;
@@ -1477,22 +1534,19 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
/* Send non-blocking inodelk calls only on up children
and where the fd has been opened */
for (i = 0; i < priv->child_count; i++) {
- if (!local->child_up[i] || !local->fd_open_on[i])
+ if (!local->child_up[i])
continue;
flock_use = &flock;
- if (!priv->eager_lock) {
- if (fd_lock_owner) {
- afr_set_lk_owner (frame, this,
- frame->root);
- fd_lock_owner = _gf_false;
- }
+ if (!local->transaction.eager_lock_on) {
goto wind;
}
piggyback = 0;
local->transaction.eager_lock[i] = 1;
+ afr_set_delayed_post_op (frame, this);
+
LOCK (&local->fd->lock);
{
if (fd_ctx->lock_acquired[i]) {
@@ -1502,11 +1556,6 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
}
UNLOCK (&local->fd->lock);
- if (!fd_lock_owner) {
- afr_set_lk_owner (frame, this, local->fd);
- fd_lock_owner = _gf_true;
- }
-
if (piggyback) {
/* (op_ret == 1) => indicate piggybacked lock */
afr_nonblocking_inodelk_cbk (frame, (void *) (long) i,
@@ -1525,7 +1574,7 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->finodelk,
- this->name, local->fd,
+ int_lock->domain, local->fd,
F_SETLK, flock_use, NULL);
if (!--call_count)
@@ -1547,7 +1596,7 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->inodelk,
- this->name, &local->loc,
+ int_lock->domain, &local->loc,
F_SETLK, &flock, NULL);
if (!--call_count)
@@ -1558,201 +1607,6 @@ out:
return ret;
}
-static int
-__is_lower_locked (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- int count = 0;
- int i = 0;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- if (int_lock->lower_locked_nodes[i] & LOCKED_LOWER)
- count++;
- }
-
- return count;
-
-}
-
-static int
-__is_higher_locked (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- int count = 0;
- int i = 0;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- if (int_lock->locked_nodes[i] & LOCKED_YES)
- count++;
- }
-
- return count;
-
-}
-
-static int
-afr_unlock_lower_entrylk (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- const char *basename = NULL;
- loc_t *loc = NULL;
- int call_count = 0;
- int i = -1;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- priv = this->private;
-
- basename = int_lock->lk_basename;
- if (int_lock->lk_loc)
- loc = int_lock->lk_loc;
-
- call_count = __is_lower_locked (frame, this);
- int_lock->lk_call_count = call_count;
-
- if (!call_count){
- gf_log (this->name, GF_LOG_TRACE,
- "No internal locks unlocked");
- int_lock->lock_cbk (frame, this);
- goto out;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (int_lock->lower_locked_nodes[i] & LOCKED_LOWER) {
- AFR_TRACE_ENTRYLK_IN (frame, this,
- AFR_ENTRYLK_NB_TRANSACTION,
- AFR_UNLOCK_OP, basename, i);
-
- STACK_WIND_COOKIE (frame, afr_unlock_entrylk_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->entrylk,
- this->name,
- loc, basename,
- ENTRYLK_UNLOCK, ENTRYLK_WRLCK, NULL);
-
- if (!--call_count)
- break;
-
- }
- }
-
-out:
- return 0;
-
-}
-
-
-static int
-afr_post_unlock_higher_cbk (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- local->transaction.done (frame, this);
- return 0;
-}
-
-static int
-afr_post_unlock_lower_cbk (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- loc_t *lower = NULL;
- loc_t *higher = NULL;
- const char *higher_name = NULL;
-
- local = frame->local;
- int_lock = &local->internal_lock;
-
- lower = lower_path (&local->transaction.parent_loc,
- local->transaction.basename,
- &local->transaction.new_parent_loc,
- local->transaction.new_basename);
-
- higher = (lower == &local->transaction.parent_loc ?
- &local->transaction.new_parent_loc :
- &local->transaction.parent_loc);
-
- higher_name = (higher == &local->transaction.parent_loc ?
- local->transaction.basename :
- local->transaction.new_basename);
-
- if (__is_higher_locked (frame, this)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "unlocking higher");
- int_lock->lk_basename = higher_name;
- int_lock->lk_loc = higher;
- int_lock->lock_cbk = afr_post_unlock_higher_cbk;
-
- afr_unlock_entrylk (frame, this);
- } else
- local->transaction.done (frame, this);
-
- return 0;
-}
-
-static int
-afr_rename_unlock (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- loc_t *lower = NULL;
- const char *lower_name = NULL;
-
- local = frame->local;
- int_lock = &local->internal_lock;
-
- lower = lower_path (&local->transaction.parent_loc,
- local->transaction.basename,
- &local->transaction.new_parent_loc,
- local->transaction.new_basename);
-
- lower_name = (lower == &local->transaction.parent_loc ?
- local->transaction.basename :
- local->transaction.new_basename);
-
- if (__is_lower_locked (frame, this)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "unlocking lower");
- int_lock->lk_basename = lower_name;
- int_lock->lk_loc = lower;
- int_lock->lock_cbk = afr_post_unlock_lower_cbk;
-
- afr_unlock_lower_entrylk (frame, this);
- } else
- afr_post_unlock_lower_cbk (frame, this);
-
- return 0;
-}
-
-static int
-afr_rename_transaction (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- return (local->transaction.type ==
- AFR_ENTRY_RENAME_TRANSACTION);
-
-}
-
int32_t
afr_unlock (call_frame_t *frame, xlator_t *this)
{
@@ -1761,14 +1615,11 @@ afr_unlock (call_frame_t *frame, xlator_t *this)
local = frame->local;
if (transaction_lk_op (local)) {
- afr_set_lk_owner (frame, this, frame->root);
if (is_afr_lock_transaction (local))
afr_unlock_inodelk (frame, this);
else
- if (!afr_rename_transaction (frame, this))
- afr_unlock_entrylk (frame, this);
- else
- afr_rename_unlock (frame, this);
+ afr_unlock_entrylk (frame, this);
+
} else {
if (is_afr_lock_selfheal (local))
afr_unlock_inodelk (frame, this);
@@ -1780,518 +1631,37 @@ afr_unlock (call_frame_t *frame, xlator_t *this)
}
int
-afr_mark_locked_nodes (xlator_t *this, fd_t *fd,
- unsigned char *locked_nodes)
-{
- afr_private_t *priv = NULL;
- afr_fd_ctx_t *fdctx = NULL;
- uint64_t tmp = 0;
- int ret = 0;
-
- priv = this->private;
-
- ret = afr_fd_ctx_set (this, fd);
- if (ret)
- goto out;
-
- ret = fd_ctx_get (fd, this, &tmp);
- if (ret) {
- gf_log (this->name, GF_LOG_INFO,
- "failed to get the fd ctx");
- goto out;
- }
- fdctx = (afr_fd_ctx_t *) (long) tmp;
-
- GF_ASSERT (fdctx->locked_on);
-
- memcpy (fdctx->locked_on, locked_nodes,
- priv->child_count);
-
-out:
- return ret;
-}
-
-static int
-__is_fd_saved (xlator_t *this, fd_t *fd)
-{
- afr_locked_fd_t *locked_fd = NULL;
- afr_private_t *priv = NULL;
- int found = 0;
-
- priv = this->private;
-
- list_for_each_entry (locked_fd, &priv->saved_fds, list) {
- if (locked_fd->fd == fd) {
- found = 1;
- break;
- }
- }
-
- return found;
-}
-
-static int
-__afr_save_locked_fd (xlator_t *this, fd_t *fd)
-{
- afr_private_t *priv = NULL;
- afr_locked_fd_t *locked_fd = NULL;
- int ret = 0;
-
- priv = this->private;
-
- locked_fd = GF_CALLOC (1, sizeof (*locked_fd),
- gf_afr_mt_locked_fd);
- if (!locked_fd) {
- ret = -1;
- goto out;
- }
-
- locked_fd->fd = fd;
- INIT_LIST_HEAD (&locked_fd->list);
-
- list_add_tail (&locked_fd->list, &priv->saved_fds);
-
-out:
- return ret;
-}
-
-int
-afr_save_locked_fd (xlator_t *this, fd_t *fd)
-{
- afr_private_t *priv = NULL;
- int ret = 0;
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->mutex);
- {
- if (__is_fd_saved (this, fd)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "fd=%p already saved", fd);
- goto unlock;
- }
-
- ret = __afr_save_locked_fd (this, fd);
- if (ret) {
- gf_log (this->name, GF_LOG_INFO,
- "fd=%p could not be saved", fd);
- goto unlock;
- }
- }
-unlock:
- pthread_mutex_unlock (&priv->mutex);
-
- return ret;
-}
-
-static int
-afr_lock_recovery_cleanup (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_locked_fd_t *locked_fd = NULL;
-
- local = frame->local;
-
- locked_fd = local->locked_fd;
-
- STACK_DESTROY (frame->root);
- afr_local_cleanup (local, this);
-
- afr_save_locked_fd (this, locked_fd->fd);
-
- return 0;
-
-}
-
-static int
-afr_get_source_lock_recovery (xlator_t *this, fd_t *fd)
-{
- afr_fd_ctx_t *fdctx = NULL;
- afr_private_t *priv = NULL;
- uint64_t tmp = 0;
- int i = 0;
- int source_child = -1;
- int ret = 0;
-
- priv = this->private;
-
- ret = fd_ctx_get (fd, this, &tmp);
- if (ret)
- goto out;
-
- fdctx = (afr_fd_ctx_t *) (long) tmp;
-
- for (i = 0; i < priv->child_count; i++) {
- if (fdctx->locked_on[i]) {
- gf_log (this->name, GF_LOG_DEBUG,
- "Found lock recovery source=%d", i);
- source_child = i;
- break;
- }
- }
-
-out:
- return source_child;
-
-}
-
-int32_t
-afr_get_locks_fd_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct gf_flock *lock,
- dict_t *xdata);
-int32_t
-afr_recover_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct gf_flock *lock,
- dict_t *xdata)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int32_t source_child = 0;
- struct gf_flock flock = {0,};
-
- local = frame->local;
- priv = this->private;
-
- if (op_ret) {
- gf_log (this->name, GF_LOG_INFO,
- "lock recovery failed");
- goto cleanup;
- }
-
- source_child = local->source_child;
-
- memcpy (&flock, lock, sizeof (*lock));
-
- STACK_WIND_COOKIE (frame, afr_get_locks_fd_cbk,
- (void *) (long) source_child,
- priv->children[source_child],
- priv->children[source_child]->fops->lk,
- local->fd, F_GETLK_FD, &flock, NULL);
-
- return 0;
-
-cleanup:
- afr_lock_recovery_cleanup (frame, this);
- return 0;
-}
-
-int
-afr_recover_lock (call_frame_t *frame, xlator_t *this,
- struct gf_flock *flock)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int32_t lock_recovery_child = 0;
-
- priv = this->private;
- local = frame->local;
-
- lock_recovery_child = local->lock_recovery_child;
-
- frame->root->lk_owner = flock->l_owner;
-
- STACK_WIND_COOKIE (frame, afr_recover_lock_cbk,
- (void *) (long) lock_recovery_child,
- priv->children[lock_recovery_child],
- priv->children[lock_recovery_child]->fops->lk,
- local->fd, F_SETLK, flock, NULL);
-
- return 0;
-}
-
-static int
-is_afr_lock_eol (struct gf_flock *lock)
-{
- int ret = 0;
-
- if ((lock->l_type == GF_LK_EOL))
- ret = 1;
-
- return ret;
-}
-
-int32_t
-afr_get_locks_fd_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct gf_flock *lock,
- dict_t *xdata)
-{
- if (op_ret) {
- gf_log (this->name, GF_LOG_INFO,
- "Failed to get locks on fd");
- goto cleanup;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Got a lock on fd");
-
- if (is_afr_lock_eol (lock)) {
- gf_log (this->name, GF_LOG_INFO,
- "Reached EOL on locks on fd");
- goto cleanup;
- }
-
- afr_recover_lock (frame, this, lock);
-
- return 0;
-
-cleanup:
- afr_lock_recovery_cleanup (frame, this);
-
- return 0;
-}
-
-static int
-afr_lock_recovery (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- fd_t *fd = NULL;
- int ret = 0;
- int32_t source_child = 0;
- struct gf_flock flock = {0,};
-
- priv = this->private;
- local = frame->local;
-
- fd = local->fd;
-
- source_child = afr_get_source_lock_recovery (this, fd);
- if (source_child < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "Could not recover locks due to lock "
- "split brain");
- ret = -1;
- goto out;
- }
-
- local->source_child = source_child;
-
- /* the flock can be zero filled as we're querying incrementally
- the locks held on the fd.
- */
- STACK_WIND_COOKIE (frame, afr_get_locks_fd_cbk,
- (void *) (long) source_child,
- priv->children[source_child],
- priv->children[source_child]->fops->lk,
- local->fd, F_GETLK_FD, &flock, NULL);
-
-out:
- return ret;
-}
-
-
-static int
-afr_mark_fd_opened (xlator_t *this, fd_t *fd, int32_t child_index)
-{
- afr_fd_ctx_t *fdctx = NULL;
- uint64_t tmp = 0;
- int ret = 0;
-
- ret = fd_ctx_get (fd, this, &tmp);
- if (ret)
- goto out;
-
- fdctx = (afr_fd_ctx_t *) (long) tmp;
-
- fdctx->opened_on[child_index] = AFR_FD_OPENED;
-
-out:
- return ret;
-}
-
-int32_t
-afr_lock_recovery_preopen_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, fd_t *fd,
- dict_t *xdata)
-{
- int32_t child_index = (long )cookie;
- int ret = 0;
-
- if (op_ret) {
- gf_log (this->name, GF_LOG_INFO,
- "Reopen during lock-recovery failed");
- goto cleanup;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Open succeeded => proceed to recover locks");
-
- ret = afr_lock_recovery (frame, this);
- if (ret) {
- gf_log (this->name, GF_LOG_INFO,
- "Lock recovery failed");
- goto cleanup;
- }
-
- ret = afr_mark_fd_opened (this, fd, child_index);
- if (ret) {
- gf_log (this->name, GF_LOG_INFO,
- "Marking fd open failed");
- goto cleanup;
- }
-
- return 0;
-
-cleanup:
- afr_lock_recovery_cleanup (frame, this);
- return 0;
-}
-
-static int
-afr_lock_recovery_preopen (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- uint64_t tmp = 0;
- afr_fd_ctx_t *fdctx = NULL;
- loc_t loc = {0,};
- int32_t child_index = 0;
- int ret = 0;
-
- priv = this->private;
- local = frame->local;
-
- GF_ASSERT (local && local->fd);
-
- ret = fd_ctx_get (local->fd, this, &tmp);
- if (ret)
- gf_log (this->name, GF_LOG_WARNING,
- "%s: failed to get the context of fd",
- uuid_utoa (local->fd->inode->gfid));
- fdctx = (afr_fd_ctx_t *) (long) tmp;
- /* TODO: instead we should return from the function */
- GF_ASSERT (fdctx);
-
- child_index = local->lock_recovery_child;
-
- inode_path (local->fd->inode, NULL, (char **)&loc.path);
- loc.name = strrchr (loc.path, '/');
- loc.inode = inode_ref (local->fd->inode);
- loc.parent = inode_parent (local->fd->inode, 0, NULL);
-
-
- STACK_WIND_COOKIE (frame, afr_lock_recovery_preopen_cbk,
- (void *)(long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->open,
- &loc, fdctx->flags, local->fd, NULL);
-
- return 0;
-}
-
-static int
-is_fd_opened (fd_t *fd, int32_t child_index)
-{
- afr_fd_ctx_t *fdctx = NULL;
- uint64_t tmp = 0;
- int ret = 0;
-
- ret = fd_ctx_get (fd, THIS, &tmp);
- if (ret)
- goto out;
-
- fdctx = (afr_fd_ctx_t *) (long) tmp;
-
- if (fdctx->opened_on[child_index] == AFR_FD_OPENED)
- ret = 1;
-
-out:
- return ret;
-}
-
-int
-afr_attempt_lock_recovery (xlator_t *this, int32_t child_index)
-{
- call_frame_t *frame = NULL;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_locked_fd_t *locked_fd = NULL;
- afr_locked_fd_t *tmp = NULL;
- int ret = -1;
- struct list_head locks_list = {0,};
- int32_t op_errno = 0;
-
-
- priv = this->private;
-
- if (list_empty (&priv->saved_fds))
- goto out;
-
- frame = create_frame (this, this->ctx->pool);
- if (!frame) {
- ret = -1;
- goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0) {
- ret = -1;
- goto out;
- }
-
- frame->local = local;
-
- INIT_LIST_HEAD (&locks_list);
-
- pthread_mutex_lock (&priv->mutex);
- {
- list_splice_init (&priv->saved_fds, &locks_list);
- }
- pthread_mutex_unlock (&priv->mutex);
-
- list_for_each_entry_safe (locked_fd, tmp,
- &locks_list, list) {
-
- list_del_init (&locked_fd->list);
-
- local->fd = fd_ref (locked_fd->fd);
- local->lock_recovery_child = child_index;
- local->locked_fd = locked_fd;
-
- if (!is_fd_opened (locked_fd->fd, child_index)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "attempting open before lock "
- "recovery");
- afr_lock_recovery_preopen (frame, this);
- } else {
- gf_log (this->name, GF_LOG_DEBUG,
- "attempting lock recovery "
- "without a preopen");
- afr_lock_recovery (frame, this);
- }
- }
-
-out:
- if ((ret < 0) && frame)
- AFR_STACK_DESTROY (frame);
- return ret;
-}
-
-void
-afr_lk_transfer_datalock (call_frame_t *dst, call_frame_t *src,
+afr_lk_transfer_datalock (call_frame_t *dst, call_frame_t *src, char *dom,
unsigned int child_count)
{
- afr_local_t *dst_local = NULL;
- afr_local_t *src_local = NULL;
- afr_internal_lock_t *dst_lock = NULL;
- afr_internal_lock_t *src_lock = NULL;
+ afr_local_t *dst_local = NULL;
+ afr_local_t *src_local = NULL;
+ afr_internal_lock_t *dst_lock = NULL;
+ afr_internal_lock_t *src_lock = NULL;
+ afr_inodelk_t *dst_inodelk = NULL;
+ afr_inodelk_t *src_inodelk = NULL;
+ int ret = -1;
- dst_local = dst->local;
- dst_lock = &dst_local->internal_lock;
src_local = src->local;
src_lock = &src_local->internal_lock;
- if (src_lock->inode_locked_nodes) {
- memcpy (dst_lock->inode_locked_nodes,
- src_lock->inode_locked_nodes,
- sizeof (*dst_lock->inode_locked_nodes) * child_count);
- memset (src_lock->inode_locked_nodes, 0,
- sizeof (*src_lock->inode_locked_nodes) * child_count);
+ src_inodelk = afr_get_inodelk (src_lock, dom);
+ dst_local = dst->local;
+ dst_lock = &dst_local->internal_lock;
+ dst_inodelk = afr_get_inodelk (dst_lock, dom);
+ if (!dst_inodelk || !src_inodelk)
+ goto out;
+ if (src_inodelk->locked_nodes) {
+ memcpy (dst_inodelk->locked_nodes, src_inodelk->locked_nodes,
+ sizeof (*dst_inodelk->locked_nodes) * child_count);
+ memset (src_inodelk->locked_nodes, 0,
+ sizeof (*src_inodelk->locked_nodes) * child_count);
}
dst_lock->transaction_lk_type = src_lock->transaction_lk_type;
dst_lock->selfheal_lk_type = src_lock->selfheal_lk_type;
- dst_lock->inodelk_lock_count = src_lock->inodelk_lock_count;
- src_lock->inodelk_lock_count = 0;
+ dst_inodelk->lock_count = src_inodelk->lock_count;
+ src_inodelk->lock_count = 0;
+ ret = 0;
+out:
+ return ret;
}
diff --git a/xlators/cluster/afr/src/afr-mem-types.h b/xlators/cluster/afr/src/afr-mem-types.h
index 7e684801f..05df90cc0 100644
--- a/xlators/cluster/afr/src/afr-mem-types.h
+++ b/xlators/cluster/afr/src/afr-mem-types.h
@@ -41,6 +41,8 @@ enum gf_afr_mem_types_ {
gf_afr_mt_shd_event_t,
gf_afr_mt_time_t,
gf_afr_mt_pos_data_t,
+ gf_afr_mt_reply_t,
+ gf_afr_mt_subvol_healer_t,
gf_afr_mt_end
};
#endif
diff --git a/xlators/cluster/afr/src/afr-open.c b/xlators/cluster/afr/src/afr-open.c
index 35090d80e..f86aa7fd8 100644
--- a/xlators/cluster/afr/src/afr-open.c
+++ b/xlators/cluster/afr/src/afr-open.c
@@ -43,85 +43,29 @@
#include "afr-dir-read.h"
#include "afr-dir-write.h"
#include "afr-transaction.h"
-#include "afr-self-heal.h"
-#include "afr-self-heal-common.h"
-int
-afr_stale_child_up (afr_local_t *local, xlator_t *this)
-{
- int i = 0;
- afr_private_t *priv = NULL;
- int up = -1;
-
- priv = this->private;
- if (!local->fresh_children)
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children)
- goto out;
-
- afr_inode_get_read_ctx (this, local->fd->inode, local->fresh_children);
- if (priv->child_count == afr_get_children_count (local->fresh_children,
- priv->child_count))
- goto out;
-
- for (i = 0; i < priv->child_count; i++) {
- if (!local->child_up[i])
- continue;
- if (afr_is_child_present (local->fresh_children,
- priv->child_count, i))
- continue;
- up = i;
- break;
- }
-out:
- return up;
-}
-
-void
-afr_perform_data_self_heal (call_frame_t *frame, xlator_t *this)
+gf_boolean_t
+afr_is_fd_fixable (fd_t *fd)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- inode_t *inode = NULL;
- int st_child = -1;
- char reason[64] = {0};
-
- local = frame->local;
- sh = &local->self_heal;
- inode = local->fd->inode;
-
- if (!IA_ISREG (inode->ia_type))
- goto out;
-
- st_child = afr_stale_child_up (local, this);
- if (st_child < 0)
- goto out;
-
- sh->do_data_self_heal = _gf_true;
- sh->do_metadata_self_heal = _gf_true;
- sh->do_gfid_self_heal = _gf_true;
- sh->do_missing_entry_self_heal = _gf_true;
-
- snprintf (reason, sizeof (reason), "stale subvolume %d detected",
- st_child);
- afr_launch_self_heal (frame, this, inode, _gf_true, inode->ia_type,
- reason, NULL, NULL);
-out:
- return;
+ if (!fd || !fd->inode)
+ return _gf_false;
+ else if (fd_is_anonymous (fd))
+ return _gf_false;
+ else if (uuid_is_null (fd->inode->gfid))
+ return _gf_false;
+
+ return _gf_true;
}
+
int
afr_open_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
struct iatt *postbuf, dict_t *xdata)
{
afr_local_t * local = frame->local;
- afr_private_t *priv = NULL;
- priv = this->private;
- if (afr_open_only_data_self_heal (priv->data_self_heal))
- afr_perform_data_self_heal (frame, this);
AFR_STACK_UNWIND (open, frame, local->op_ret, local->op_errno,
local->fd, xdata);
return 0;
@@ -134,49 +78,38 @@ afr_open_cbk (call_frame_t *frame, void *cookie,
fd_t *fd, dict_t *xdata)
{
afr_local_t * local = NULL;
- int ret = 0;
int call_count = -1;
int child_index = (long) cookie;
- afr_private_t *priv = NULL;
+ afr_fd_ctx_t *fd_ctx = NULL;
- priv = this->private;
local = frame->local;
+ fd_ctx = local->fd_ctx;
LOCK (&frame->lock);
{
if (op_ret == -1) {
local->op_errno = op_errno;
- }
-
- if (op_ret >= 0) {
+ fd_ctx->opened_on[child_index] = AFR_FD_NOT_OPENED;
+ } else {
local->op_ret = op_ret;
- local->success_count++;
-
- ret = afr_child_fd_ctx_set (this, fd, child_index,
- local->cont.open.flags);
- if (ret) {
- local->op_ret = -1;
- local->op_errno = -ret;
- goto unlock;
- }
+ fd_ctx->opened_on[child_index] = AFR_FD_OPENED;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
}
}
-unlock:
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0) {
- if ((local->cont.open.flags & O_TRUNC)
- && (local->op_ret >= 0)) {
+ if ((fd_ctx->flags & O_TRUNC) && (local->op_ret >= 0)) {
STACK_WIND (frame, afr_open_ftruncate_cbk,
this, this->fops->ftruncate,
fd, 0, NULL);
} else {
- if (afr_open_only_data_self_heal (priv->data_self_heal))
- afr_perform_data_self_heal (frame, this);
AFR_STACK_UNWIND (open, frame, local->op_ret,
- local->op_errno, local->fd, xdata);
+ local->op_errno, local->fd,
+ local->xdata_rsp);
}
}
@@ -190,16 +123,11 @@ afr_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
afr_private_t * priv = NULL;
afr_local_t * local = NULL;
int i = 0;
- int ret = -1;
int32_t call_count = 0;
int32_t op_errno = 0;
- int32_t wind_flags = flags & (~O_TRUNC);
- //We can't let truncation to happen outside transaction.
+ afr_fd_ctx_t *fd_ctx = NULL;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
+ //We can't let truncation to happen outside transaction.
priv = this->private;
@@ -207,239 +135,203 @@ afr_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
QUORUM_CHECK(open,out);
}
- if (afr_is_split_brain (this, loc->inode)) {
- /* self-heal failed */
- gf_log (this->name, GF_LOG_WARNING,
- "failed to open as split brain seen, returning EIO");
- op_errno = EIO;
- goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!fd_ctx) {
+ op_errno = ENOMEM;
+ goto out;
+ }
- call_count = local->call_count;
- loc_copy (&local->loc, loc);
+ local->fd = fd_ref (fd);
+ local->fd_ctx = fd_ctx;
+ fd_ctx->flags = flags;
- local->cont.open.flags = flags;
+ call_count = local->call_count;
- local->fd = fd_ref (fd);
+ local->cont.open.flags = flags;
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
STACK_WIND_COOKIE (frame, afr_open_cbk, (void *) (long) i,
priv->children[i],
priv->children[i]->fops->open,
- loc, wind_flags, fd, xdata);
-
+ loc, (flags & ~O_TRUNC), fd, xdata);
if (!--call_count)
break;
}
}
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (open, frame, -1, op_errno, fd, xdata);
+ AFR_STACK_UNWIND (open, frame, -1, op_errno, fd, NULL);
return 0;
}
-//NOTE: this function should be called with holding the lock on
-//fd to which fd_ctx belongs
-void
-afr_get_resumable_calls (xlator_t *this, afr_fd_ctx_t *fd_ctx,
- struct list_head *list)
-{
- afr_fd_paused_call_t *paused_call = NULL;
- afr_fd_paused_call_t *tmp = NULL;
- afr_local_t *call_local = NULL;
- afr_private_t *priv = NULL;
- int i = 0;
- gf_boolean_t call = _gf_false;
-
- priv = this->private;
- list_for_each_entry_safe (paused_call, tmp, &fd_ctx->paused_calls,
- call_list) {
- call = _gf_true;
- call_local = paused_call->frame->local;
- for (i = 0; i < priv->child_count; i++) {
- if (call_local->child_up[i] &&
- (fd_ctx->opened_on[i] == AFR_FD_OPENING))
- call = _gf_false;
- }
-
- if (call) {
- list_del_init (&paused_call->call_list);
- list_add (&paused_call->call_list, list);
- }
- }
-}
-
-void
-afr_resume_calls (xlator_t *this, struct list_head *list)
-{
- afr_fd_paused_call_t *paused_call = NULL;
- afr_fd_paused_call_t *tmp = NULL;
- afr_local_t *call_local = NULL;
-
- list_for_each_entry_safe (paused_call, tmp, list, call_list) {
- list_del_init (&paused_call->call_list);
- call_local = paused_call->frame->local;
- call_local->fop_call_continue (paused_call->frame, this);
- GF_FREE (paused_call);
- }
-}
-
int
afr_openfd_fix_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, fd_t *fd, dict_t *xdata)
+ int32_t op_ret, int32_t op_errno, fd_t *fd,
+ dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_fd_ctx_t *fd_ctx = NULL;
- int call_count = 0;
- int child_index = (long) cookie;
- struct list_head paused_calls = {0};
- gf_boolean_t fop_paused = _gf_false;
- fd_t *local_fd = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ afr_fd_ctx_t *fd_ctx = NULL;
+ int call_count = 0;
+ int child_index = (long) cookie;
priv = this->private;
local = frame->local;
- fop_paused = local->fop_paused;
if (op_ret >= 0) {
- gf_log (this->name, GF_LOG_INFO, "fd for %s opened "
+ gf_log (this->name, GF_LOG_DEBUG, "fd for %s opened "
"successfully on subvolume %s", local->loc.path,
priv->children[child_index]->name);
+ } else {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to open %s "
+ "on subvolume %s", local->loc.path,
+ priv->children[child_index]->name);
}
- local_fd = fd_ref (local->fd);
- call_count = afr_frame_return (frame);
- //Note: Do not access any thing using the frame outside call_count 0
+ fd_ctx = local->fd_ctx;
- //Note: No frame locking needed for this block of code
- fd_ctx = afr_fd_ctx_get (local_fd, this);
- if (!fd_ctx) {
- gf_log (this->name, GF_LOG_WARNING,
- "failed to get fd context, %p", local_fd);
- goto out;
- }
-
- LOCK (&local_fd->lock);
+ LOCK (&local->fd->lock);
{
if (op_ret >= 0) {
fd_ctx->opened_on[child_index] = AFR_FD_OPENED;
} else {
fd_ctx->opened_on[child_index] = AFR_FD_NOT_OPENED;
}
- if (call_count == 0) {
- INIT_LIST_HEAD (&paused_calls);
- afr_get_resumable_calls (this, fd_ctx, &paused_calls);
- }
- }
- UNLOCK (&local_fd->lock);
-out:
- if (call_count == 0) {
- afr_resume_calls (this, &paused_calls);
- //If the fop is paused then resume_calls will continue the fop
- if (fop_paused)
- goto done;
-
- if (local->fop_call_continue)
- local->fop_call_continue (frame, this);
- else
- AFR_STACK_DESTROY (frame);
}
+ UNLOCK (&local->fd->lock);
+
+ call_count = afr_frame_return (frame);
+ if (call_count == 0)
+ AFR_STACK_DESTROY (frame);
-done:
- fd_unref (local_fd);
return 0;
}
-int
-afr_fix_open (call_frame_t *frame, xlator_t *this, afr_fd_ctx_t *fd_ctx,
- int need_open_count, int *need_open)
+
+static int
+afr_fd_ctx_need_open (fd_t *fd, xlator_t *this, unsigned char *need_open)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int i = 0;
- call_frame_t *open_frame = NULL;
- afr_local_t *open_local = NULL;
- int ret = -1;
- ia_type_t ia_type = IA_INVAL;
- int32_t op_errno = 0;
-
- GF_ASSERT (fd_ctx);
- GF_ASSERT (need_open_count > 0);
- GF_ASSERT (need_open);
+ afr_fd_ctx_t *fd_ctx = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int count = 0;
+
+ priv = this->private;
+
+ fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!fd_ctx)
+ return 0;
+
+ LOCK (&fd->lock);
+ {
+ for (i = 0; i < priv->child_count; i++) {
+ if (fd_ctx->opened_on[i] == AFR_FD_NOT_OPENED &&
+ priv->child_up[i]) {
+ fd_ctx->opened_on[i] = AFR_FD_OPENING;
+ need_open[i] = 1;
+ count++;
+ } else {
+ need_open[i] = 0;
+ }
+ }
+ }
+ UNLOCK (&fd->lock);
+
+ return count;
+}
+
+
+void
+afr_fix_open (fd_t *fd, xlator_t *this)
+{
+ afr_private_t *priv = NULL;
+ int i = 0;
+ call_frame_t *frame = NULL;
+ afr_local_t *local = NULL;
+ int ret = -1;
+ int32_t op_errno = 0;
+ afr_fd_ctx_t *fd_ctx = NULL;
+ unsigned char *need_open = NULL;
+ int call_count = 0;
- local = frame->local;
priv = this->private;
- if (!local->fop_call_continue) {
- open_frame = copy_frame (frame);
- if (!open_frame) {
- ret = -ENOMEM;
- goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (open_frame->local, out);
- open_local = open_frame->local;
- ret = afr_local_init (open_local, priv, &op_errno);
- if (ret < 0)
- goto out;
- loc_copy (&open_local->loc, &local->loc);
- open_local->fd = fd_ref (local->fd);
- } else {
- ret = 0;
- open_frame = frame;
- open_local = local;
- }
- open_local->call_count = need_open_count;
+ if (!afr_is_fd_fixable (fd))
+ goto out;
+
+ fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!fd_ctx)
+ goto out;
+
+ need_open = alloca0 (priv->child_count);
+
+ call_count = afr_fd_ctx_need_open (fd, this, need_open);
+ if (!call_count)
+ goto out;
+
+ frame = create_frame (this, this->ctx->pool);
+ if (!frame)
+ goto out;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ local->loc.inode = inode_ref (fd->inode);
+ ret = loc_path (&local->loc, NULL);
+ if (ret < 0)
+ goto out;
+
+ local->fd = fd_ref (fd);
+ local->fd_ctx = fd_ctx;
+
+ local->call_count = call_count;
gf_log (this->name, GF_LOG_DEBUG, "need open count: %d",
- need_open_count);
+ call_count);
- ia_type = open_local->fd->inode->ia_type;
- GF_ASSERT (ia_type != IA_INVAL);
for (i = 0; i < priv->child_count; i++) {
if (!need_open[i])
continue;
- if (IA_IFDIR == ia_type) {
+
+ if (IA_IFDIR == fd->inode->ia_type) {
gf_log (this->name, GF_LOG_DEBUG,
"opening fd for dir %s on subvolume %s",
local->loc.path, priv->children[i]->name);
- STACK_WIND_COOKIE (open_frame, afr_openfd_fix_open_cbk,
+ STACK_WIND_COOKIE (frame, afr_openfd_fix_open_cbk,
(void*) (long) i,
priv->children[i],
priv->children[i]->fops->opendir,
- &open_local->loc, open_local->fd,
+ &local->loc, local->fd,
NULL);
} else {
gf_log (this->name, GF_LOG_DEBUG,
"opening fd for file %s on subvolume %s",
local->loc.path, priv->children[i]->name);
- STACK_WIND_COOKIE (open_frame, afr_openfd_fix_open_cbk,
+ STACK_WIND_COOKIE (frame, afr_openfd_fix_open_cbk,
(void *)(long) i,
priv->children[i],
priv->children[i]->fops->open,
- &open_local->loc, fd_ctx->flags,
- open_local->fd, NULL);
+ &local->loc,
+ fd_ctx->flags & (~O_TRUNC),
+ local->fd, NULL);
}
+ if (!--call_count)
+ break;
}
- op_errno = 0;
- ret = 0;
+
+ return;
out:
- if (op_errno)
- ret = -op_errno;
- if (ret && open_frame)
- AFR_STACK_DESTROY (open_frame);
- return ret;
+ if (frame)
+ AFR_STACK_DESTROY (frame);
}
diff --git a/xlators/cluster/afr/src/afr-read-txn.c b/xlators/cluster/afr/src/afr-read-txn.c
new file mode 100644
index 000000000..186f68c33
--- /dev/null
+++ b/xlators/cluster/afr/src/afr-read-txn.c
@@ -0,0 +1,239 @@
+/*
+ Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#include "afr.h"
+#include "afr-transaction.h"
+
+int
+afr_read_txn_next_subvol (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int subvol = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->readable[i]) {
+ /* don't even bother trying here.
+ just mark as attempted and move on. */
+ local->read_attempted[i] = 1;
+ continue;
+ }
+
+ if (!local->read_attempted[i]) {
+ subvol = i;
+ break;
+ }
+ }
+
+ /* If no more subvols were available for reading, we leave
+ @subvol as -1, which is an indication we have run out of
+ readable subvols. */
+ if (subvol != -1)
+ local->read_attempted[subvol] = 1;
+ local->readfn (frame, this, subvol);
+
+ return 0;
+}
+
+
+int
+afr_read_txn_refresh_done (call_frame_t *frame, xlator_t *this, int err)
+{
+ afr_local_t *local = NULL;
+ int read_subvol = 0;
+ int event_generation = 0;
+ inode_t *inode = NULL;
+ int ret = -1;
+
+ local = frame->local;
+ inode = local->inode;
+
+ if (err) {
+ local->op_errno = -err;
+ local->op_ret = -1;
+ read_subvol = -1;
+ goto readfn;
+ }
+
+ ret = afr_inode_read_subvol_type_get (inode, this, local->readable,
+ &event_generation,
+ local->transaction.type);
+
+ if (ret == -1 || !event_generation) {
+ /* Even after refresh, we don't have a good
+ read subvolume. Time to bail */
+ local->op_ret = -1;
+ local->op_errno = EIO;
+ read_subvol = -1;
+ goto readfn;
+ }
+
+ read_subvol = afr_read_subvol_select_by_policy (inode, this,
+ local->readable);
+
+ if (read_subvol == -1) {
+ local->op_ret = -1;
+ local->op_errno = EIO;
+ goto readfn;
+ }
+
+ if (local->read_attempted[read_subvol]) {
+ afr_read_txn_next_subvol (frame, this);
+ return 0;
+ }
+
+ local->read_attempted[read_subvol] = 1;
+readfn:
+ local->readfn (frame, this, read_subvol);
+
+ return 0;
+}
+
+
+int
+afr_read_txn_continue (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ if (!local->refreshed) {
+ local->refreshed = _gf_true;
+ afr_inode_refresh (frame, this, local->inode,
+ afr_read_txn_refresh_done);
+ } else {
+ afr_read_txn_next_subvol (frame, this);
+ }
+
+ return 0;
+}
+
+
+/* afr_read_txn_wipe:
+
+ clean internal variables in @local in order to make
+ it possible to call afr_read_txn() multiple times from
+ the same frame
+*/
+
+void
+afr_read_txn_wipe (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ local->readfn = NULL;
+
+ if (local->inode)
+ inode_unref (local->inode);
+
+ for (i = 0; i < priv->child_count; i++) {
+ local->read_attempted[i] = 0;
+ local->readable[i] = 0;
+ }
+}
+
+
+/*
+ afr_read_txn:
+
+ This is the read transaction function. The way it works:
+
+ - Determine read-subvolume from inode ctx.
+
+ - If read-subvolume's generation was stale, refresh ctx once by
+ calling afr_inode_refresh()
+
+ Else make an attempt to read on read-subvolume.
+
+ - If attempted read on read-subvolume fails, refresh ctx once
+ by calling afr_inode_refresh()
+
+ - After ctx refresh, query read-subvolume freshly and attempt
+ read once.
+
+ - If read fails, try every other readable[] subvolume before
+ finally giving up. readable[] elements are set by afr_inode_refresh()
+ based on dirty and pending flags.
+
+ - If file is in split brain in the backend, generation will be
+ kept 0 by afr_inode_refresh() and readable[] will be set 0 for
+ all elements. Therefore reads always fail.
+*/
+
+int
+afr_read_txn (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ afr_read_txn_wind_t readfn, afr_transaction_type type)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int read_subvol = -1;
+ int event_generation = 0;
+ int ret = -1;
+
+ priv = this->private;
+ local = frame->local;
+
+ afr_read_txn_wipe (frame, this);
+
+ local->readfn = readfn;
+ local->inode = inode_ref (inode);
+
+ local->transaction.type = type;
+ ret = afr_inode_read_subvol_type_get (inode, this, local->readable,
+ &event_generation, type);
+ if (ret == -1)
+ /* very first transaction on this inode */
+ goto refresh;
+
+ if (local->event_generation != event_generation)
+ /* servers have disconnected / reconnected, and possibly
+ rebooted, very likely changing the state of freshness
+ of copies */
+ goto refresh;
+
+ read_subvol = afr_read_subvol_select_by_policy (inode, this,
+ local->readable);
+
+ if (read_subvol < 0 || read_subvol > priv->child_count) {
+ gf_log (this->name, GF_LOG_WARNING, "Unreadable subvolume %d "
+ "found with event generation %d", read_subvol,
+ event_generation);
+ goto refresh;
+ }
+
+ if (!local->child_up[read_subvol]) {
+ /* should never happen, just in case */
+ gf_log (this->name, GF_LOG_WARNING, "subvolume %d is the "
+ "read subvolume in this generation, but is not up",
+ read_subvol);
+ goto refresh;
+ }
+
+ local->read_attempted[read_subvol] = 1;
+
+ local->readfn (frame, this, read_subvol);
+
+ return 0;
+
+refresh:
+ afr_inode_refresh (frame, this, inode, afr_read_txn_refresh_done);
+
+ return 0;
+}
diff --git a/xlators/cluster/afr/src/afr-self-heal-algorithm.c b/xlators/cluster/afr/src/afr-self-heal-algorithm.c
deleted file mode 100644
index 18edca8c1..000000000
--- a/xlators/cluster/afr/src/afr-self-heal-algorithm.c
+++ /dev/null
@@ -1,810 +0,0 @@
-/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
- This file is part of GlusterFS.
-
- This file is licensed to you under your choice of the GNU Lesser
- General Public License, version 3 or any later version (LGPLv3 or
- later), or the GNU General Public License, version 2 (GPLv2), in all
- cases as published by the Free Software Foundation.
-*/
-
-
-#include <openssl/md5.h>
-#include "glusterfs.h"
-#include "afr.h"
-#include "xlator.h"
-#include "dict.h"
-#include "xlator.h"
-#include "hashfn.h"
-#include "logging.h"
-#include "stack.h"
-#include "list.h"
-#include "call-stub.h"
-#include "defaults.h"
-#include "common-utils.h"
-#include "compat-errno.h"
-#include "compat.h"
-#include "byte-order.h"
-
-#include "afr-transaction.h"
-#include "afr-self-heal.h"
-#include "afr-self-heal-common.h"
-#include "afr-self-heal-algorithm.h"
-
-/*
- This file contains the various self-heal algorithms
-*/
-
-static int
-sh_loop_driver (call_frame_t *sh_frame, xlator_t *this,
- gf_boolean_t is_first_call, call_frame_t *old_loop_frame);
-static int
-sh_loop_return (call_frame_t *sh_frame, xlator_t *this, call_frame_t *loop_frame,
- int32_t op_ret, int32_t op_errno);
-static int
-sh_destroy_frame (call_frame_t *frame, xlator_t *this)
-{
- if (!frame)
- goto out;
-
- AFR_STACK_DESTROY (frame);
-out:
- return 0;
-}
-
-static void
-sh_private_cleanup (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_sh_algo_private_t *sh_priv = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- sh_priv = sh->private;
- if (sh_priv)
- GF_FREE (sh_priv);
-}
-
-static int
-sh_number_of_writes_needed (unsigned char *write_needed, int child_count)
-{
- int writes = 0;
- int i = 0;
-
- for (i = 0; i < child_count; i++) {
- if (write_needed[i])
- writes++;
- }
-
- return writes;
-}
-
-
-static int
-sh_loop_driver_done (call_frame_t *sh_frame, xlator_t *this,
- call_frame_t *last_loop_frame)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_sh_algo_private_t *sh_priv = NULL;
- int32_t total_blocks = 0;
- int32_t diff_blocks = 0;
-
- local = sh_frame->local;
- sh = &local->self_heal;
- sh_priv = sh->private;
- if (sh_priv) {
- total_blocks = sh_priv->total_blocks;
- diff_blocks = sh_priv->diff_blocks;
- }
-
- sh_private_cleanup (sh_frame, this);
- if (sh->op_failed) {
- GF_ASSERT (!last_loop_frame);
- //loop_finish should have happened and the old_loop should be NULL
- gf_log (this->name, GF_LOG_INFO,
- "self-heal aborting on %s",
- local->loc.path);
-
- local->self_heal.algo_abort_cbk (sh_frame, this);
- } else {
- GF_ASSERT (last_loop_frame);
- if (diff_blocks == total_blocks) {
- gf_log (this->name, GF_LOG_INFO, "full self-heal "
- "completed on %s",local->loc.path);
- } else {
- gf_log (this->name, GF_LOG_INFO,
- "diff self-heal on %s: completed. "
- "(%d blocks of %d were different (%.2f%%))",
- local->loc.path, diff_blocks, total_blocks,
- ((diff_blocks * 1.0)/total_blocks) * 100);
- }
-
- sh->old_loop_frame = last_loop_frame;
- local->self_heal.algo_completion_cbk (sh_frame, this);
- }
-
- return 0;
-}
-
-int
-sh_loop_finish (call_frame_t *loop_frame, xlator_t *this)
-{
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
-
- if (!loop_frame)
- goto out;
-
- loop_local = loop_frame->local;
- if (loop_local) {
- loop_sh = &loop_local->self_heal;
- }
-
- if (loop_sh && loop_sh->data_lock_held) {
- afr_sh_data_unlock (loop_frame, this,
- sh_destroy_frame);
- } else {
- sh_destroy_frame (loop_frame, this);
- }
-out:
- return 0;
-}
-
-static int
-sh_loop_lock_success (call_frame_t *loop_frame, xlator_t *this)
-{
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
-
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- sh_loop_finish (loop_sh->old_loop_frame, this);
- loop_sh->old_loop_frame = NULL;
-
- gf_log (this->name, GF_LOG_DEBUG, "Acquired lock for range %"PRIu64
- " %"PRIu64, loop_sh->offset, loop_sh->block_size);
- loop_sh->data_lock_held = _gf_true;
- loop_sh->sh_data_algo_start (loop_frame, this);
- return 0;
-}
-
-static int
-sh_loop_lock_failure (call_frame_t *loop_frame, xlator_t *this)
-{
- call_frame_t *sh_frame = NULL;
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
-
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
- sh_frame = loop_sh->sh_frame;
-
- gf_log (this->name, GF_LOG_ERROR, "failed lock for range %"PRIu64
- " %"PRIu64, loop_sh->offset, loop_sh->block_size);
- sh_loop_finish (loop_sh->old_loop_frame, this);
- loop_sh->old_loop_frame = NULL;
- sh_loop_return (sh_frame, this, loop_frame, -1, ENOTCONN);
- return 0;
-}
-
-static int
-sh_loop_frame_create (call_frame_t *sh_frame, xlator_t *this,
- call_frame_t *old_loop_frame, call_frame_t **loop_frame)
-{
- call_frame_t *new_loop_frame = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_local_t *new_loop_local = NULL;
- afr_self_heal_t *new_loop_sh = NULL;
- afr_private_t *priv = NULL;
-
- GF_ASSERT (sh_frame);
- GF_ASSERT (loop_frame);
-
- *loop_frame = NULL;
- local = sh_frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- new_loop_frame = copy_frame (sh_frame);
- if (!new_loop_frame)
- goto out;
- //We want the frame to have same lk_owner as sh_frame
- //so that locks translator allows conflicting locks
- new_loop_local = afr_local_copy (local, this);
- if (!new_loop_local)
- goto out;
- new_loop_frame->local = new_loop_local;
-
- new_loop_sh = &new_loop_local->self_heal;
- new_loop_sh->sources = memdup (sh->sources,
- priv->child_count * sizeof (*sh->sources));
- if (!new_loop_sh->sources)
- goto out;
- new_loop_sh->write_needed = GF_CALLOC (priv->child_count,
- sizeof (*new_loop_sh->write_needed),
- gf_afr_mt_char);
- if (!new_loop_sh->write_needed)
- goto out;
- new_loop_sh->checksum = GF_CALLOC (priv->child_count, MD5_DIGEST_LENGTH,
- gf_afr_mt_uint8_t);
- if (!new_loop_sh->checksum)
- goto out;
- new_loop_sh->inode = inode_ref (sh->inode);
- new_loop_sh->sh_data_algo_start = sh->sh_data_algo_start;
- new_loop_sh->source = sh->source;
- new_loop_sh->active_sinks = sh->active_sinks;
- new_loop_sh->healing_fd = fd_ref (sh->healing_fd);
- new_loop_sh->file_has_holes = sh->file_has_holes;
- new_loop_sh->old_loop_frame = old_loop_frame;
- new_loop_sh->sh_frame = sh_frame;
- *loop_frame = new_loop_frame;
- return 0;
-out:
- sh_destroy_frame (new_loop_frame, this);
- return -ENOMEM;
-}
-
-static int
-sh_loop_start (call_frame_t *sh_frame, xlator_t *this, off_t offset,
- call_frame_t *old_loop_frame)
-{
- call_frame_t *new_loop_frame = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_local_t *new_loop_local = NULL;
- afr_self_heal_t *new_loop_sh = NULL;
- int ret = 0;
-
- GF_ASSERT (sh_frame);
-
- local = sh_frame->local;
- sh = &local->self_heal;
-
- ret = sh_loop_frame_create (sh_frame, this, old_loop_frame,
- &new_loop_frame);
- if (ret)
- goto out;
- new_loop_local = new_loop_frame->local;
- new_loop_sh = &new_loop_local->self_heal;
- new_loop_sh->offset = offset;
- new_loop_sh->block_size = sh->block_size;
- afr_sh_data_lock (new_loop_frame, this, offset, new_loop_sh->block_size,
- sh_loop_lock_success, sh_loop_lock_failure);
- return 0;
-out:
- sh->op_failed = 1;
- if (old_loop_frame)
- sh_loop_finish (old_loop_frame, this);
- sh_loop_return (sh_frame, this, new_loop_frame, -1, ENOMEM);
- return 0;
-}
-
-static int
-sh_loop_driver (call_frame_t *sh_frame, xlator_t *this,
- gf_boolean_t is_first_call, call_frame_t *old_loop_frame)
-{
- afr_local_t * local = NULL;
- afr_self_heal_t * sh = NULL;
- afr_sh_algo_private_t *sh_priv = NULL;
- gf_boolean_t is_driver_done = _gf_false;
- blksize_t block_size = 0;
- int loop = 0;
- off_t offset = 0;
- afr_private_t *priv = NULL;
-
- priv = this->private;
- local = sh_frame->local;
- sh = &local->self_heal;
- sh_priv = sh->private;
-
- LOCK (&sh_priv->lock);
- {
- if (!is_first_call)
- sh_priv->loops_running--;
- offset = sh_priv->offset;
- block_size = sh->block_size;
- while ((!sh->eof_reached) && (0 == sh->op_failed) &&
- (sh_priv->loops_running < priv->data_self_heal_window_size)
- && (sh_priv->offset < sh->file_size)) {
-
- loop++;
- sh_priv->offset += block_size;
- sh_priv->loops_running++;
-
- if (!is_first_call)
- break;
- }
- if (0 == sh_priv->loops_running) {
- is_driver_done = _gf_true;
- }
- }
- UNLOCK (&sh_priv->lock);
-
- if (0 == loop) {
- //loop finish does unlock, but the erasing of the pending
- //xattrs needs to happen before that so do not finish the loop
- if (is_driver_done && !sh->op_failed)
- goto driver_done;
- if (old_loop_frame) {
- sh_loop_finish (old_loop_frame, this);
- old_loop_frame = NULL;
- }
- }
-
- //If we have more loops to form we should finish previous loop after
- //the next loop lock
- while (loop--) {
- if (sh->op_failed) {
- // op failed in other loop, stop spawning more loops
- if (old_loop_frame) {
- sh_loop_finish (old_loop_frame, this);
- old_loop_frame = NULL;
- }
- sh_loop_driver (sh_frame, this, _gf_false, NULL);
- } else {
- gf_log (this->name, GF_LOG_TRACE, "spawning a loop "
- "for offset %"PRId64, offset);
-
- sh_loop_start (sh_frame, this, offset, old_loop_frame);
- old_loop_frame = NULL;
- offset += block_size;
- }
- }
-
-driver_done:
- if (is_driver_done) {
- sh_loop_driver_done (sh_frame, this, old_loop_frame);
- }
- return 0;
-}
-
-static int
-sh_loop_return (call_frame_t *sh_frame, xlator_t *this, call_frame_t *loop_frame,
- int32_t op_ret, int32_t op_errno)
-{
- afr_local_t * loop_local = NULL;
- afr_self_heal_t * loop_sh = NULL;
- afr_local_t * sh_local = NULL;
- afr_self_heal_t *sh = NULL;
-
- sh_local = sh_frame->local;
- sh = &sh_local->self_heal;
-
- if (loop_frame) {
- loop_local = loop_frame->local;
- if (loop_local)
- loop_sh = &loop_local->self_heal;
- if (loop_sh)
- gf_log (this->name, GF_LOG_TRACE, "loop for offset "
- "%"PRId64" returned", loop_sh->offset);
- }
-
- if (op_ret == -1) {
- sh->op_failed = 1;
- afr_sh_set_error (sh, op_errno);
- if (loop_frame) {
- sh_loop_finish (loop_frame, this);
- loop_frame = NULL;
- }
- }
-
- sh_loop_driver (sh_frame, this, _gf_false, loop_frame);
-
- return 0;
-}
-
-static int
-sh_loop_write_cbk (call_frame_t *loop_frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *buf,
- struct iatt *postbuf, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * loop_local = NULL;
- afr_self_heal_t * loop_sh = NULL;
- call_frame_t *sh_frame = NULL;
- afr_local_t * sh_local = NULL;
- afr_self_heal_t *sh = NULL;
- int call_count = 0;
- int child_index = 0;
-
- priv = this->private;
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- sh_frame = loop_sh->sh_frame;
- sh_local = sh_frame->local;
- sh = &sh_local->self_heal;
-
- child_index = (long) cookie;
-
- gf_log (this->name, GF_LOG_TRACE,
- "wrote %d bytes of data from %s to child %d, offset %"PRId64"",
- op_ret, sh_local->loc.path, child_index, loop_sh->offset);
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "write to %s failed on subvolume %s (%s)",
- sh_local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
-
- sh->op_failed = 1;
- afr_sh_set_error (loop_sh, op_errno);
- }
-
- call_count = afr_frame_return (loop_frame);
-
- if (call_count == 0) {
- sh_loop_return (sh_frame, this, loop_frame,
- loop_sh->op_ret, loop_sh->op_errno);
- }
-
- return 0;
-}
-
-static void
-sh_prune_writes_needed (call_frame_t *sh_frame, call_frame_t *loop_frame,
- afr_private_t *priv)
-{
- afr_local_t *sh_local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
- int i = 0;
-
- sh_local = sh_frame->local;
- sh = &sh_local->self_heal;
-
- if (!strcmp (sh->algo->name, "diff"))
- return;
-
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- /* full self-heal guarantees there exists atleast 1 file with size 0
- * That means for other files we can preserve holes that come after
- * its size before 'trim'
- */
- for (i = 0; i < priv->child_count; i++) {
- if (loop_sh->write_needed[i] &&
- ((loop_sh->offset + 1) > sh->buf[i].ia_size))
- loop_sh->write_needed[i] = 0;
- }
-}
-
-static int
-sh_loop_read_cbk (call_frame_t *loop_frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- struct iovec *vector, int32_t count, struct iatt *buf,
- struct iobref *iobref, dict_t *xdata)
-{
- afr_private_t * priv = NULL;
- afr_local_t * loop_local = NULL;
- afr_self_heal_t * loop_sh = NULL;
- call_frame_t *sh_frame = NULL;
- int i = 0;
- int call_count = 0;
- afr_local_t * sh_local = NULL;
- afr_self_heal_t * sh = NULL;
-
- priv = this->private;
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- sh_frame = loop_sh->sh_frame;
- sh_local = sh_frame->local;
- sh = &sh_local->self_heal;
-
- gf_log (this->name, GF_LOG_TRACE,
- "read %d bytes of data from %s, offset %"PRId64"",
- op_ret, loop_local->loc.path, loop_sh->offset);
-
- if (op_ret <= 0) {
- if (op_ret < 0) {
- sh->op_failed = 1;
- gf_log (this->name, GF_LOG_ERROR, "read failed on %d "
- "for %s reason :%s", sh->source,
- sh_local->loc.path, strerror (errno));
- } else {
- sh->eof_reached = _gf_true;
- gf_log (this->name, GF_LOG_DEBUG, "Eof reached for %s",
- sh_local->loc.path);
- }
- sh_loop_return (sh_frame, this, loop_frame, op_ret, op_errno);
- goto out;
- }
-
- if (loop_sh->file_has_holes && iov_0filled (vector, count) == 0)
- sh_prune_writes_needed (sh_frame, loop_frame, priv);
-
- call_count = sh_number_of_writes_needed (loop_sh->write_needed,
- priv->child_count);
- if (call_count == 0) {
- sh_loop_return (sh_frame, this, loop_frame, 0, 0);
- goto out;
- }
- loop_local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (!loop_sh->write_needed[i])
- continue;
- STACK_WIND_COOKIE (loop_frame, sh_loop_write_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->writev,
- loop_sh->healing_fd, vector, count,
- loop_sh->offset, 0, iobref, NULL);
-
- if (!--call_count)
- break;
- }
-
-out:
- return 0;
-}
-
-
-static int
-sh_loop_read (call_frame_t *loop_frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
-
- priv = this->private;
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- STACK_WIND_COOKIE (loop_frame, sh_loop_read_cbk,
- (void *) (long) loop_sh->source,
- priv->children[loop_sh->source],
- priv->children[loop_sh->source]->fops->readv,
- loop_sh->healing_fd, loop_sh->block_size,
- loop_sh->offset, 0, NULL);
-
- return 0;
-}
-
-
-static int
-sh_diff_checksum_cbk (call_frame_t *loop_frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- uint32_t weak_checksum, uint8_t *strong_checksum,
- dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
- call_frame_t *sh_frame = NULL;
- afr_local_t *sh_local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_sh_algo_private_t *sh_priv = NULL;
- int child_index = 0;
- int call_count = 0;
- int i = 0;
- int write_needed = 0;
-
- priv = this->private;
-
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- sh_frame = loop_sh->sh_frame;
- sh_local = sh_frame->local;
- sh = &sh_local->self_heal;
-
- sh_priv = sh->private;
-
- child_index = (long) cookie;
-
- if (op_ret < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "checksum on %s failed on subvolume %s (%s)",
- sh_local->loc.path, priv->children[child_index]->name,
- strerror (op_errno));
- sh->op_failed = 1;
- } else {
- memcpy (loop_sh->checksum + child_index * MD5_DIGEST_LENGTH,
- strong_checksum, MD5_DIGEST_LENGTH);
- }
-
- call_count = afr_frame_return (loop_frame);
-
- if (call_count == 0) {
- for (i = 0; i < priv->child_count; i++) {
- if (sh->sources[i] || !sh_local->child_up[i])
- continue;
-
- if (memcmp (loop_sh->checksum + (i * MD5_DIGEST_LENGTH),
- loop_sh->checksum + (sh->source * MD5_DIGEST_LENGTH),
- MD5_DIGEST_LENGTH)) {
- /*
- Checksums differ, so this block
- must be written to this sink
- */
-
- gf_log (this->name, GF_LOG_DEBUG,
- "checksum on subvolume %s at offset %"
- PRId64" differs from that on source",
- priv->children[i]->name, loop_sh->offset);
-
- write_needed = loop_sh->write_needed[i] = 1;
- }
- }
-
- LOCK (&sh_priv->lock);
- {
- sh_priv->total_blocks++;
- if (write_needed)
- sh_priv->diff_blocks++;
- }
- UNLOCK (&sh_priv->lock);
-
- if (write_needed && !sh->op_failed) {
- sh_loop_read (loop_frame, this);
- } else {
- sh_loop_return (sh_frame, this, loop_frame,
- op_ret, op_errno);
- }
- }
-
- return 0;
-}
-
-static int
-sh_diff_checksum (call_frame_t *loop_frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
- int call_count = 0;
- int i = 0;
-
- priv = this->private;
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- call_count = loop_sh->active_sinks + 1; /* sinks and source */
-
- loop_local->call_count = call_count;
-
- STACK_WIND_COOKIE (loop_frame, sh_diff_checksum_cbk,
- (void *) (long) loop_sh->source,
- priv->children[loop_sh->source],
- priv->children[loop_sh->source]->fops->rchecksum,
- loop_sh->healing_fd,
- loop_sh->offset, loop_sh->block_size, NULL);
-
- for (i = 0; i < priv->child_count; i++) {
- if (loop_sh->sources[i] || !loop_local->child_up[i])
- continue;
-
- STACK_WIND_COOKIE (loop_frame, sh_diff_checksum_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->rchecksum,
- loop_sh->healing_fd,
- loop_sh->offset, loop_sh->block_size, NULL);
-
- if (!--call_count)
- break;
- }
-
- return 0;
-}
-
-static int
-sh_full_read_write_to_sinks (call_frame_t *loop_frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *loop_local = NULL;
- afr_self_heal_t *loop_sh = NULL;
- int i = 0;
-
- priv = this->private;
- loop_local = loop_frame->local;
- loop_sh = &loop_local->self_heal;
-
- for (i = 0; i < priv->child_count; i++) {
- if (loop_sh->sources[i] || !loop_local->child_up[i])
- continue;
- loop_sh->write_needed[i] = 1;
- }
- sh_loop_read (loop_frame, this);
- return 0;
-}
-
-afr_sh_algo_private_t*
-afr_sh_priv_init ()
-{
- afr_sh_algo_private_t *sh_priv = NULL;
-
- sh_priv = GF_CALLOC (1, sizeof (*sh_priv),
- gf_afr_mt_afr_private_t);
- if (!sh_priv)
- goto out;
-
- LOCK_INIT (&sh_priv->lock);
-out:
- return sh_priv;
-}
-
-void
-afr_sh_transfer_lock (call_frame_t *dst, call_frame_t *src,
- unsigned int child_count)
-{
- afr_local_t *dst_local = NULL;
- afr_self_heal_t *dst_sh = NULL;
- afr_local_t *src_local = NULL;
- afr_self_heal_t *src_sh = NULL;
-
- dst_local = dst->local;
- dst_sh = &dst_local->self_heal;
- src_local = src->local;
- src_sh = &src_local->self_heal;
- GF_ASSERT (src_sh->data_lock_held);
- GF_ASSERT (!dst_sh->data_lock_held);
- afr_lk_transfer_datalock (dst, src, child_count);
- src_sh->data_lock_held = _gf_false;
- dst_sh->data_lock_held = _gf_true;
-}
-
-int
-afr_sh_start_loops (call_frame_t *sh_frame, xlator_t *this,
- afr_sh_algo_fn sh_data_algo_start)
-{
- call_frame_t *first_loop_frame = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int ret = 0;
- afr_private_t *priv = NULL;
-
- local = sh_frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- sh->sh_data_algo_start = sh_data_algo_start;
- local->call_count = 0;
- ret = sh_loop_frame_create (sh_frame, this, NULL, &first_loop_frame);
- if (ret)
- goto out;
- afr_sh_transfer_lock (first_loop_frame, sh_frame, priv->child_count);
- sh->private = afr_sh_priv_init ();
- if (!sh->private) {
- ret = -1;
- goto out;
- }
- sh_loop_driver (sh_frame, this, _gf_true, first_loop_frame);
- ret = 0;
-out:
- if (ret) {
- sh->op_failed = 1;
- sh_loop_driver_done (sh_frame, this, NULL);
- }
- return 0;
-}
-
-int
-afr_sh_algo_diff (call_frame_t *sh_frame, xlator_t *this)
-{
- afr_sh_start_loops (sh_frame, this, sh_diff_checksum);
- return 0;
-}
-
-int
-afr_sh_algo_full (call_frame_t *sh_frame, xlator_t *this)
-{
- afr_sh_start_loops (sh_frame, this, sh_full_read_write_to_sinks);
- return 0;
-}
-
-struct afr_sh_algorithm afr_self_heal_algorithms[] = {
- {.name = "full", .fn = afr_sh_algo_full},
- {.name = "diff", .fn = afr_sh_algo_diff},
- {0, 0},
-};
diff --git a/xlators/cluster/afr/src/afr-self-heal-algorithm.h b/xlators/cluster/afr/src/afr-self-heal-algorithm.h
deleted file mode 100644
index 6b20789b1..000000000
--- a/xlators/cluster/afr/src/afr-self-heal-algorithm.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
- This file is part of GlusterFS.
-
- This file is licensed to you under your choice of the GNU Lesser
- General Public License, version 3 or any later version (LGPLv3 or
- later), or the GNU General Public License, version 2 (GPLv2), in all
- cases as published by the Free Software Foundation.
-*/
-
-#ifndef __AFR_SELF_HEAL_ALGORITHM_H__
-#define __AFR_SELF_HEAL_ALGORITHM_H__
-
-typedef int (*afr_sh_algo_fn) (call_frame_t *frame,
- xlator_t *this);
-
-struct afr_sh_algorithm {
- const char *name;
- afr_sh_algo_fn fn;
-};
-
-extern struct afr_sh_algorithm afr_self_heal_algorithms[3];
-typedef struct {
- gf_lock_t lock;
- unsigned int loops_running;
- off_t offset;
-
- int32_t total_blocks;
- int32_t diff_blocks;
-} afr_sh_algo_private_t;
-
-#endif /* __AFR_SELF_HEAL_ALGORITHM_H__ */
diff --git a/xlators/cluster/afr/src/afr-self-heal-common.c b/xlators/cluster/afr/src/afr-self-heal-common.c
index 6d2349498..4dac83113 100644
--- a/xlators/cluster/afr/src/afr-self-heal-common.c
+++ b/xlators/cluster/afr/src/afr-self-heal-common.c
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
+ Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
@@ -8,2404 +8,1002 @@
cases as published by the Free Software Foundation.
*/
-#include "glusterfs.h"
-#include "xlator.h"
-#include "byte-order.h"
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
#include "afr.h"
-#include "afr-transaction.h"
-#include "afr-self-heal-common.h"
#include "afr-self-heal.h"
-#include "pump.h"
+#include "byte-order.h"
-void
-afr_sh_reset (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- memset (sh->child_errno, 0,
- sizeof (*sh->child_errno) * priv->child_count);
- memset (sh->buf, 0, sizeof (*sh->buf) * priv->child_count);
- memset (sh->parentbufs, 0,
- sizeof (*sh->parentbufs) * priv->child_count);
- memset (sh->success, 0, sizeof (*sh->success) * priv->child_count);
- memset (sh->locked_nodes, 0,
- sizeof (*sh->locked_nodes) * priv->child_count);
- sh->active_sinks = 0;
-
- afr_reset_xattr (sh->xattr, priv->child_count);
-}
-//Intersection[child]=1 if child is part of intersection
-void
-afr_children_intersection_get (int32_t *set1, int32_t *set2,
- int *intersection, unsigned int child_count)
+int
+afr_selfheal_post_op_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, dict_t *xattr, dict_t *xdata)
{
- int i = 0;
-
- memset (intersection, 0, sizeof (*intersection) * child_count);
- for (i = 0; i < child_count; i++) {
- intersection[i] = afr_is_child_present (set1, child_count, i)
- && afr_is_child_present (set2, child_count,
- i);
- }
-}
+ afr_local_t *local = NULL;
-/**
- * select_source - select a source and return it
- */
+ local = frame->local;
-int
-afr_sh_select_source (int sources[], int child_count)
-{
- int i = 0;
- for (i = 0; i < child_count; i++)
- if (sources[i])
- return i;
+ syncbarrier_wake (&local->barrier);
- return -1;
+ return 0;
}
-void
-afr_sh_mark_source_sinks (call_frame_t *frame, xlator_t *this)
-{
- int i = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int active_sinks = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- if (sh->sources[i] == 0 && local->child_up[i] == 1) {
- active_sinks++;
- sh->success[i] = 1;
- } else if (sh->sources[i] == 1 && local->child_up[i] == 1) {
- sh->success[i] = 1;
- }
- }
- sh->active_sinks = active_sinks;
-}
int
-afr_sh_source_count (int sources[], int child_count)
+afr_selfheal_post_op (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ int subvol, dict_t *xattr)
{
- int i = 0;
- int nsource = 0;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ loc_t loc = {0, };
- for (i = 0; i < child_count; i++)
- if (sources[i])
- nsource++;
- return nsource;
-}
+ priv = this->private;
+ local = frame->local;
-void
-afr_sh_set_error (afr_self_heal_t *sh, int32_t op_errno)
-{
- sh->op_ret = -1;
- if (afr_error_more_important (sh->op_errno, op_errno))
- sh->op_errno = op_errno;
-}
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
-void
-afr_sh_print_pending_matrix (int32_t *pending_matrix[], xlator_t *this)
-{
- afr_private_t * priv = this->private;
- char *buf = NULL;
- char *ptr = NULL;
- int i = 0;
- int j = 0;
-
- /* 10 digits per entry + 1 space + '[' and ']' */
- buf = GF_MALLOC (priv->child_count * 11 + 8, gf_afr_mt_char);
-
- for (i = 0; i < priv->child_count; i++) {
- ptr = buf;
- ptr += sprintf (ptr, "[ ");
- for (j = 0; j < priv->child_count; j++) {
- ptr += sprintf (ptr, "%d ", pending_matrix[i][j]);
- }
- sprintf (ptr, "]");
- gf_log (this->name, GF_LOG_DEBUG,
- "pending_matrix: %s", buf);
- }
-
- GF_FREE (buf);
+ STACK_WIND (frame, afr_selfheal_post_op_cbk, priv->children[subvol],
+ priv->children[subvol]->fops->xattrop, &loc,
+ GF_XATTROP_ADD_ARRAY, xattr, NULL);
+
+ syncbarrier_wait (&local->barrier, 1);
+
+ return 0;
}
-void
-afr_init_pending_matrix (int32_t **pending_matrix, size_t child_count)
+
+dict_t *
+afr_selfheal_output_xattr (xlator_t *this, afr_transaction_type type,
+ int *output_dirty, int **output_matrix, int subvol)
{
- int i = 0;
- int j = 0;
+ dict_t *xattr = NULL;
+ afr_private_t *priv = NULL;
+ int j = 0;
+ int idx = 0;
+ int ret = 0;
+ int *raw = 0;
- GF_ASSERT (pending_matrix);
+ priv = this->private;
+ idx = afr_index_for_transaction_type (type);
- for (i = 0; i < child_count; i++) {
- for (j = 0; j < child_count; j++) {
- pending_matrix[i][j] = 0;
- }
- }
-}
+ xattr = dict_new ();
+ if (!xattr)
+ return NULL;
-void
-afr_mark_ignorant_subvols_as_pending (int32_t **pending_matrix,
- unsigned char *ignorant_subvols,
- size_t child_count)
-{
- int i = 0;
- int j = 0;
-
- GF_ASSERT (pending_matrix);
- GF_ASSERT (ignorant_subvols);
-
- for (i = 0; i < child_count; i++) {
- if (ignorant_subvols[i]) {
- for (j = 0; j < child_count; j++) {
- if (!ignorant_subvols[j])
- pending_matrix[j][i] += 1;
- }
- }
- }
+ if (output_dirty[subvol]) {
+ /* clear dirty */
+ raw = GF_CALLOC (sizeof(int), AFR_NUM_CHANGE_LOGS, gf_afr_mt_int32_t);
+ if (!raw)
+ goto err;
+
+ raw[idx] = hton32 (output_dirty[subvol]);
+ ret = dict_set_bin (xattr, AFR_DIRTY, raw,
+ sizeof(int) * AFR_NUM_CHANGE_LOGS);
+ if (ret)
+ goto err;
+ }
+
+ /* clear/set pending */
+ for (j = 0; j < priv->child_count; j++) {
+ if (!output_matrix[subvol][j])
+ continue;
+
+ raw = GF_CALLOC (sizeof(int), AFR_NUM_CHANGE_LOGS,
+ gf_afr_mt_int32_t);
+ if (!raw)
+ goto err;
+
+ raw[idx] = hton32 (output_matrix[subvol][j]);
+
+ ret = dict_set_bin (xattr, priv->pending_key[j],
+ raw, sizeof(int) * AFR_NUM_CHANGE_LOGS);
+ if (ret)
+ goto err;
+ }
+
+ return xattr;
+err:
+ if (xattr)
+ dict_unref (xattr);
+ return NULL;
}
+
int
-afr_build_pending_matrix (char **pending_key, int32_t **pending_matrix,
- unsigned char *ignorant_subvols,
- dict_t *xattr[], afr_transaction_type type,
- size_t child_count)
-{
- /* Indexable by result of afr_index_for_transaction_type(): 0 -- 2. */
- int32_t pending[3] = {0,};
- void *pending_raw = NULL;
- int ret = -1;
- int i = 0;
- int j = 0;
- int k = 0;
-
- afr_init_pending_matrix (pending_matrix, child_count);
-
- for (i = 0; i < child_count; i++) {
- pending_raw = NULL;
-
- for (j = 0; j < child_count; j++) {
- ret = dict_get_ptr (xattr[i], pending_key[j],
- &pending_raw);
-
- if (ret != 0) {
- /*
- * There is no xattr present. This means this
- * subvolume should be considered an 'ignorant'
- * subvolume.
- */
-
- if (ignorant_subvols)
- ignorant_subvols[i] = 1;
- continue;
- }
-
- memcpy (pending, pending_raw, sizeof(pending));
- k = afr_index_for_transaction_type (type);
-
- pending_matrix[i][j] = ntoh32 (pending[k]);
- }
- }
-
- return ret;
+afr_selfheal_undo_pending (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ unsigned char *sources, unsigned char *sinks,
+ unsigned char *healed_sinks, afr_transaction_type type,
+ struct afr_reply *replies, unsigned char *locked_on)
+{
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int j = 0;
+ unsigned char *pending = NULL;
+ int *input_dirty = NULL;
+ int **input_matrix = NULL;
+ int *output_dirty = NULL;
+ int **output_matrix = NULL;
+ dict_t *xattr = NULL;
+
+ priv = this->private;
+
+ pending = alloca0 (priv->child_count);
+
+ input_dirty = alloca0 (priv->child_count * sizeof (int));
+ input_matrix = ALLOC_MATRIX (priv->child_count, int);
+ output_dirty = alloca0 (priv->child_count * sizeof (int));
+ output_matrix = ALLOC_MATRIX (priv->child_count, int);
+
+ afr_selfheal_extract_xattr (this, replies, type, input_dirty,
+ input_matrix);
+
+ for (i = 0; i < priv->child_count; i++)
+ if (sinks[i] && !healed_sinks[i])
+ pending[i] = 1;
+
+ for (i = 0; i < priv->child_count; i++) {
+ for (j = 0; j < priv->child_count; j++) {
+ if (pending[j])
+ output_matrix[i][j] = 1;
+ else
+ output_matrix[i][j] = -input_matrix[i][j];
+ }
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!pending[i])
+ output_dirty[i] = -input_dirty[i];
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!locked_on[i])
+ /* perform post-op only on subvols we had locked
+ and inspected on.
+ */
+ continue;
+
+ xattr = afr_selfheal_output_xattr (this, type, output_dirty,
+ output_matrix, i);
+ if (!xattr) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "unable to allocate xdata for subvol %d", i);
+ continue;
+ }
+
+ afr_selfheal_post_op (frame, this, inode, i, xattr);
+
+ dict_unref (xattr);
+ }
+
+ return 0;
}
-typedef enum {
- AFR_NODE_INVALID,
- AFR_NODE_INNOCENT,
- AFR_NODE_FOOL,
- AFR_NODE_WISE,
-} afr_node_type;
-typedef struct {
- afr_node_type type;
- int wisdom;
-} afr_node_character;
+void
+afr_replies_copy (struct afr_reply *dst, struct afr_reply *src, int count)
+{
+ int i = 0;
+ dict_t *xdata = NULL;
+
+ if (dst == src)
+ return;
+
+ for (i = 0; i < count; i++) {
+ dst[i].valid = src[i].valid;
+ dst[i].op_ret = src[i].op_ret;
+ dst[i].op_errno = src[i].op_errno;
+ dst[i].prestat = src[i].prestat;
+ dst[i].poststat = src[i].poststat;
+ dst[i].preparent = src[i].preparent;
+ dst[i].postparent = src[i].postparent;
+ dst[i].preparent2 = src[i].preparent2;
+ dst[i].postparent2 = src[i].postparent2;
+ if (src[i].xdata)
+ xdata = dict_ref (src[i].xdata);
+ else
+ xdata = NULL;
+ if (dst[i].xdata)
+ dict_unref (dst[i].xdata);
+ dst[i].xdata = xdata;
+ memcpy (dst[i].checksum, src[i].checksum,
+ MD5_DIGEST_LENGTH);
+ }
+}
-static int
-afr_sh_is_innocent (int32_t *array, int child_count)
+int
+afr_selfheal_fill_dirty (xlator_t *this, int *dirty, int subvol,
+ int idx, dict_t *xdata)
{
- int i = 0;
- int ret = 1; /* innocent until proven guilty */
+ void *pending_raw = NULL;
+ int pending[3] = {0, };
- for (i = 0; i < child_count; i++) {
- if (array[i]) {
- ret = 0;
- break;
- }
- }
+ if (dict_get_ptr (xdata, AFR_DIRTY, &pending_raw))
+ return -1;
- return ret;
-}
+ if (!pending_raw)
+ return -1;
+ memcpy (pending, pending_raw, sizeof(pending));
-static int
-afr_sh_is_fool (int32_t *array, int i, int child_count)
-{
- return array[i]; /* fool if accuses itself */
+ dirty[subvol] = ntoh32 (pending[idx]);
+
+ return 0;
}
-static int
-afr_sh_is_wise (int32_t *array, int i, int child_count)
+int
+afr_selfheal_fill_matrix (xlator_t *this, int **matrix, int subvol,
+ int idx, dict_t *xdata)
{
- return !array[i]; /* wise if does not accuse itself */
-}
+ int i = 0;
+ void *pending_raw = NULL;
+ int pending[3] = {0, };
+ afr_private_t *priv = NULL;
+ priv = this->private;
-static int
-afr_sh_all_nodes_innocent (afr_node_character *characters,
- int child_count)
-{
- int i = 0;
- int ret = 1;
+ for (i = 0; i < priv->child_count; i++) {
+ if (dict_get_ptr (xdata, priv->pending_key[i], &pending_raw))
+ continue;
- for (i = 0; i < child_count; i++) {
- if (characters[i].type != AFR_NODE_INNOCENT) {
- ret = 0;
- break;
- }
- }
+ if (!pending_raw)
+ continue;
- return ret;
+ memcpy (pending, pending_raw, sizeof(pending));
+
+ matrix[subvol][i] = ntoh32 (pending[idx]);
+ }
+
+ return 0;
}
-static int
-afr_sh_wise_nodes_exist (afr_node_character *characters, int child_count)
+int
+afr_selfheal_extract_xattr (xlator_t *this, struct afr_reply *replies,
+ afr_transaction_type type, int *dirty, int **matrix)
{
- int i = 0;
- int ret = 0;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ dict_t *xdata = NULL;
+ int idx = -1;
+
+ idx = afr_index_for_transaction_type (type);
+
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].xdata)
+ continue;
+
+ xdata = replies[i].xdata;
- for (i = 0; i < child_count; i++) {
- if (characters[i].type == AFR_NODE_WISE) {
- ret = 1;
- break;
- }
- }
+ afr_selfheal_fill_dirty (this, dirty, i, idx, xdata);
+ afr_selfheal_fill_matrix (this, matrix, i, idx, xdata);
+ }
- return ret;
+ return 0;
}
+
/*
- * The 'wisdom' of a wise node is 0 if any other wise node accuses it.
- * It is 1 if no other wise node accuses it.
- * Only wise nodes with wisdom 1 are sources.
+ * This function determines if a self-heal is required for a given inode,
+ * and if needed, in what direction.
+ *
+ * locked_on[] is the array representing servers which have been locked and
+ * from which xattrs have been fetched for analysis.
+ *
+ * The output of the function is by filling the arrays sources[] and sinks[].
+ *
+ * sources[i] is set if i'th server is an eligible source for a selfheal.
+ *
+ * sinks[i] is set if i'th server needs to be healed.
+ *
+ * if sources[0..N] are all set, there is no need for a selfheal.
+ *
+ * if sinks[0..N] are all set, the inode is in split brain.
*
- * If no nodes with wisdom 1 exist, a split-brain has occurred.
*/
-static void
-afr_sh_compute_wisdom (int32_t *pending_matrix[],
- afr_node_character characters[], int child_count)
-{
- int i = 0;
- int j = 0;
-
- for (i = 0; i < child_count; i++) {
- if (characters[i].type == AFR_NODE_WISE) {
- characters[i].wisdom = 1;
-
- for (j = 0; j < child_count; j++) {
- if ((characters[j].type == AFR_NODE_WISE)
- && pending_matrix[j][i]) {
-
- characters[i].wisdom = 0;
- }
- }
- }
- }
+int
+afr_selfheal_find_direction (call_frame_t *frame, xlator_t *this,
+ struct afr_reply *replies,
+ afr_transaction_type type, unsigned char *locked_on,
+ unsigned char *sources, unsigned char *sinks)
+{
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int j = 0;
+ int *dirty = NULL;
+ int **matrix = NULL;
+ char *accused = NULL;
+
+ priv = this->private;
+
+ dirty = alloca0 (priv->child_count * sizeof (int));
+ accused = alloca0 (priv->child_count);
+ matrix = ALLOC_MATRIX(priv->child_count, int);
+
+ /* First construct the pending matrix for further analysis */
+ afr_selfheal_extract_xattr (this, replies, type, dirty, matrix);
+
+ /* Next short list all accused to exclude them from being sources */
+ for (i = 0; i < priv->child_count; i++) {
+ for (j = 0; j < priv->child_count; j++) {
+ if (matrix[i][j])
+ accused[j] = 1;
+ }
+ }
+
+ /* Short list all non-accused as sources */
+ memset (sources, 0, priv->child_count);
+ for (i = 0; i < priv->child_count; i++) {
+ if (!accused[i] && locked_on[i])
+ sources[i] = 1;
+ }
+
+ /* Everyone accused by sources are sinks */
+ memset (sinks, 0, priv->child_count);
+ for (i = 0; i < priv->child_count; i++) {
+ if (!sources[i])
+ continue;
+ for (j = 0; j < priv->child_count; j++) {
+ if (matrix[i][j])
+ sinks[j] = 1;
+ }
+ }
+
+ /* If any source has 'dirty' bit, pick first
+ 'dirty' source and make everybody else sinks */
+ for (i = 0; i < priv->child_count; i++) {
+ if (sources[i] && dirty[i]) {
+ for (j = 0; j < priv->child_count; j++) {
+ if (j != i) {
+ sources[j] = 0;
+ sinks[j] = 1;
+ }
+ }
+ break;
+ }
+ }
+
+ /* If no sources, all locked nodes are sinks - split brain */
+ if (AFR_COUNT (sources, priv->child_count) == 0) {
+ for (i = 0; i < priv->child_count; i++) {
+ if (locked_on[i])
+ sinks[i] = 1;
+ }
+ }
+
+ return 0;
}
-static int
-afr_sh_wise_nodes_conflict (afr_node_character *characters,
- int child_count)
+int
+afr_selfheal_discover_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, inode_t *inode,
+ struct iatt *buf, dict_t *xdata, struct iatt *parbuf)
{
- int i = 0;
- int ret = 1;
+ afr_local_t *local = NULL;
+ int i = -1;
+
+ local = frame->local;
+ i = (long) cookie;
- for (i = 0; i < child_count; i++) {
- if ((characters[i].type == AFR_NODE_WISE)
- && characters[i].wisdom == 1) {
+ local->replies[i].valid = 1;
+ local->replies[i].op_ret = op_ret;
+ local->replies[i].op_errno = op_errno;
+ if (buf)
+ local->replies[i].poststat = *buf;
+ if (parbuf)
+ local->replies[i].postparent = *parbuf;
+ if (xdata)
+ local->replies[i].xdata = dict_ref (xdata);
- /* There is atleast one bona-fide wise node */
- ret = 0;
- break;
- }
- }
+ syncbarrier_wake (&local->barrier);
- return ret;
+ return 0;
}
-static int
-afr_sh_mark_wisest_as_sources (int sources[],
- afr_node_character *characters,
- int child_count)
+inode_t *
+afr_selfheal_unlocked_lookup_on (call_frame_t *frame, inode_t *parent,
+ const char *name, struct afr_reply *replies,
+ unsigned char *lookup_on)
{
- int nsources = 0;
- int i = 0;
+ loc_t loc = {0, };
+ dict_t *xattr_req = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ inode_t *inode = NULL;
- for (i = 0; i < child_count; i++) {
- if (characters[i].wisdom == 1) {
- sources[i] = 1;
- nsources++;
- }
- }
+ local = frame->local;
+ priv = frame->this->private;
- return nsources;
-}
+ xattr_req = dict_new ();
+ if (!xattr_req)
+ return NULL;
-static void
-afr_compute_witness_of_fools (int32_t *witnesses, int32_t **pending_matrix,
- afr_node_character *characters,
- int32_t child_count)
-{
- int i = 0;
- int j = 0;
- int witness = 0;
-
- GF_ASSERT (witnesses);
- GF_ASSERT (pending_matrix);
- GF_ASSERT (characters);
- GF_ASSERT (child_count > 0);
-
- for (i = 0; i < child_count; i++) {
- if (characters[i].type != AFR_NODE_FOOL)
- continue;
-
- witness = 0;
- for (j = 0; j < child_count; j++) {
- if (i == j)
- continue;
- witness += pending_matrix[i][j];
- }
- witnesses[i] = witness;
- }
-}
+ if (afr_xattr_req_prepare (frame->this, xattr_req) != 0) {
+ dict_destroy (xattr_req);
+ return NULL;
+ }
-static int32_t
-afr_find_biggest_witness_among_fools (int32_t *witnesses,
- afr_node_character *characters,
- int32_t child_count)
-{
- int i = 0;
- int biggest_witness = -1;
+ inode = inode_new (parent->table);
+ if (!inode) {
+ dict_destroy (xattr_req);
+ return NULL;
+ }
- GF_ASSERT (witnesses);
- GF_ASSERT (characters);
- GF_ASSERT (child_count > 0);
+ loc.parent = inode_ref (parent);
+ uuid_copy (loc.pargfid, parent->gfid);
+ loc.name = name;
+ loc.inode = inode_ref (inode);
- for (i = 0; i < child_count; i++) {
- if (characters[i].type != AFR_NODE_FOOL)
- continue;
+ AFR_ONLIST (lookup_on, frame, afr_selfheal_discover_cbk, lookup, &loc,
+ xattr_req);
- if (biggest_witness < witnesses[i])
- biggest_witness = witnesses[i];
- }
- return biggest_witness;
-}
+ afr_replies_copy (replies, local->replies, priv->child_count);
-int
-afr_mark_fool_as_source_by_witness (int32_t *sources, int32_t *witnesses,
- afr_node_character *characters,
- int32_t child_count, int32_t witness)
-{
- int i = 0;
- int nsources = 0;
-
- GF_ASSERT (sources);
- GF_ASSERT (witnesses);
- GF_ASSERT (characters);
- GF_ASSERT (child_count > 0);
-
- for (i = 0; i < child_count; i++) {
- if (characters[i].type != AFR_NODE_FOOL)
- continue;
-
- if (witness == witnesses[i]) {
- sources[i] = 1;
- nsources++;
- }
- }
- return nsources;
-}
+ loc_wipe (&loc);
+ dict_unref (xattr_req);
-static int
-afr_mark_biggest_of_fools_as_source (int32_t *sources, int32_t **pending_matrix,
- afr_node_character *characters,
- int child_count)
-{
- int32_t biggest_witness = 0;
- int nsources = 0;
- int32_t *witnesses = NULL;
-
- GF_ASSERT (child_count > 0);
-
- witnesses = GF_CALLOC (child_count, sizeof (*witnesses),
- gf_afr_mt_int32_t);
- if (NULL == witnesses) {
- nsources = -1;
- goto out;
- }
-
- afr_compute_witness_of_fools (witnesses, pending_matrix, characters,
- child_count);
- biggest_witness = afr_find_biggest_witness_among_fools (witnesses,
- characters,
- child_count);
- nsources = afr_mark_fool_as_source_by_witness (sources, witnesses,
- characters, child_count,
- biggest_witness);
-out:
- if (witnesses)
- GF_FREE (witnesses);
- return nsources;
+ return inode;
}
-int
-afr_mark_child_as_source_by_uid (int32_t *sources, struct iatt *bufs,
- int32_t *success_children,
- unsigned int child_count, uint32_t uid)
-{
- int i = 0;
- int nsources = 0;
- int child = 0;
-
- for (i = 0; i < child_count; i++) {
- if (-1 == success_children[i])
- break;
-
- child = success_children[i];
- if (uid == bufs[child].ia_uid) {
- sources[child] = 1;
- nsources++;
- }
- }
- return nsources;
-}
int
-afr_get_child_with_lowest_uid (struct iatt *bufs, int32_t *success_children,
- unsigned int child_count)
+afr_selfheal_unlocked_discover_on (call_frame_t *frame, inode_t *inode,
+ uuid_t gfid, struct afr_reply *replies,
+ unsigned char *discover_on)
{
- int i = 0;
- int smallest = -1;
- int child = 0;
-
- for (i = 0; i < child_count; i++) {
- if (-1 == success_children[i])
- break;
- child = success_children[i];
- if ((smallest == -1) ||
- (bufs[child].ia_uid < bufs[smallest].ia_uid)) {
- smallest = child;
- }
- }
- return smallest;
-}
+ loc_t loc = {0, };
+ dict_t *xattr_req = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
-static int
-afr_sh_mark_lowest_uid_as_source (struct iatt *bufs, int32_t *success_children,
- int child_count, int32_t *sources)
-{
- int nsources = 0;
- int smallest = 0;
-
- smallest = afr_get_child_with_lowest_uid (bufs, success_children,
- child_count);
- if (smallest < 0) {
- nsources = -1;
- goto out;
- }
- nsources = afr_mark_child_as_source_by_uid (sources, bufs,
- success_children, child_count,
- bufs[smallest].ia_uid);
-out:
- return nsources;
-}
+ local = frame->local;
+ priv = frame->this->private;
-int
-afr_get_no_xattr_dir_read_child (xlator_t *this, int32_t *success_children,
- struct iatt *bufs)
-{
- afr_private_t *priv = NULL;
- int i = 0;
- int child = -1;
- int read_child = -1;
-
- priv = this->private;
- for (i = 0; i < priv->child_count; i++) {
- child = success_children[i];
- if (child < 0)
- break;
- if (read_child < 0)
- read_child = child;
- else if (bufs[read_child].ia_size < bufs[child].ia_size)
- read_child = child;
- }
- return read_child;
-}
+ xattr_req = dict_new ();
+ if (!xattr_req)
+ return -ENOMEM;
-int
-afr_sh_mark_zero_size_file_as_sink (struct iatt *bufs, int32_t *success_children,
- int child_count, int32_t *sources)
-{
- int nsources = 0;
- int i = 0;
- int child = 0;
- gf_boolean_t sink_exists = _gf_false;
- gf_boolean_t source_exists = _gf_false;
- int source = -1;
-
- for (i = 0; i < child_count; i++) {
- child = success_children[i];
- if (child < 0)
- break;
- if (!bufs[child].ia_size) {
- sink_exists = _gf_true;
- continue;
- }
- if (!source_exists) {
- source_exists = _gf_true;
- source = child;
- continue;
- }
- if (bufs[source].ia_size != bufs[child].ia_size) {
- nsources = -1;
- goto out;
- }
- }
- if (!source_exists && !sink_exists) {
- nsources = -1;
- goto out;
- }
-
- if (!source_exists || !sink_exists)
- goto out;
-
- for (i = 0; i < child_count; i++) {
- child = success_children[i];
- if (child < 0)
- break;
- if (bufs[child].ia_size) {
- sources[child] = 1;
- nsources++;
- }
- }
-out:
- return nsources;
-}
+ if (afr_xattr_req_prepare (frame->this, xattr_req) != 0) {
+ dict_destroy (xattr_req);
+ return -ENOMEM;
+ }
-char *
-afr_get_character_str (afr_node_type type)
-{
- char *character = NULL;
-
- switch (type) {
- case AFR_NODE_INNOCENT:
- character = "innocent";
- break;
- case AFR_NODE_FOOL:
- character = "fool";
- break;
- case AFR_NODE_WISE:
- character = "wise";
- break;
- default:
- character = "invalid";
- break;
- }
- return character;
-}
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, gfid);
-afr_node_type
-afr_find_child_character_type (int32_t *pending_row, int32_t child,
- unsigned int child_count)
-{
- afr_node_type type = AFR_NODE_INVALID;
+ AFR_ONLIST (discover_on, frame, afr_selfheal_discover_cbk, lookup, &loc,
+ xattr_req);
- GF_ASSERT ((child >= 0) && (child < child_count));
+ afr_replies_copy (replies, local->replies, priv->child_count);
- if (afr_sh_is_innocent (pending_row, child_count))
- type = AFR_NODE_INNOCENT;
- else if (afr_sh_is_fool (pending_row, child, child_count))
- type = AFR_NODE_FOOL;
- else if (afr_sh_is_wise (pending_row, child, child_count))
- type = AFR_NODE_WISE;
- return type;
+ loc_wipe (&loc);
+ dict_unref (xattr_req);
+
+ return 0;
}
int
-afr_build_sources (xlator_t *this, dict_t **xattr, struct iatt *bufs,
- int32_t **pending_matrix, int32_t *sources,
- int32_t *success_children, afr_transaction_type type,
- int32_t *subvol_status, gf_boolean_t ignore_ignorant)
+afr_selfheal_unlocked_discover (call_frame_t *frame, inode_t *inode,
+ uuid_t gfid, struct afr_reply *replies)
{
- afr_private_t *priv = NULL;
- afr_self_heal_type sh_type = AFR_SELF_HEAL_INVALID;
- int nsources = -1;
- unsigned char *ignorant_subvols = NULL;
- unsigned int child_count = 0;
-
- priv = this->private;
- child_count = priv->child_count;
-
- if (afr_get_children_count (success_children, priv->child_count) == 0)
- goto out;
-
- if (!ignore_ignorant) {
- ignorant_subvols = GF_CALLOC (sizeof (*ignorant_subvols),
- child_count, gf_afr_mt_char);
- if (NULL == ignorant_subvols)
- goto out;
- }
-
- afr_build_pending_matrix (priv->pending_key, pending_matrix,
- ignorant_subvols, xattr, type,
- priv->child_count);
-
- if (!ignore_ignorant)
- afr_mark_ignorant_subvols_as_pending (pending_matrix,
- ignorant_subvols,
- priv->child_count);
- sh_type = afr_self_heal_type_for_transaction (type);
- if (AFR_SELF_HEAL_INVALID == sh_type)
- goto out;
-
- afr_sh_print_pending_matrix (pending_matrix, this);
-
- nsources = afr_mark_sources (this, sources, pending_matrix, bufs,
- sh_type, success_children, subvol_status);
-out:
- GF_FREE (ignorant_subvols);
- return nsources;
-}
+ afr_private_t *priv = NULL;
-void
-afr_find_character_types (afr_node_character *characters,
- int32_t **pending_matrix, int32_t *success_children,
- unsigned int child_count)
-{
- afr_node_type type = AFR_NODE_INVALID;
- int child = 0;
- int i = 0;
-
- for (i = 0; i < child_count; i++) {
- child = success_children[i];
- if (child == -1)
- break;
- type = afr_find_child_character_type (pending_matrix[child],
- child, child_count);
- characters[child].type = type;
- }
-}
+ priv = frame->this->private;
-void
-afr_mark_success_children_sources (int32_t *sources, int32_t *success_children,
- unsigned int child_count)
-{
- int i = 0;
- for (i = 0; i < child_count; i++) {
- if (success_children[i] == -1)
- break;
- sources[success_children[i]] = 1;
- }
+ return afr_selfheal_unlocked_discover_on (frame, inode, gfid, replies,
+ priv->child_up);
}
-/**
- * mark_sources: Mark all 'source' nodes and return number of source
- * nodes found
- *
- * A node (a row in the pending matrix) belongs to one of
- * three categories:
- *
- * M is the pending matrix.
- *
- * 'innocent' - M[i] is all zeroes
- * 'fool' - M[i] has i'th element = 1 (self-reference)
- * 'wise' - M[i] has i'th element = 0, others are 1 or 0.
- *
- * All 'innocent' nodes are sinks. If all nodes are innocent, no self-heal is
- * needed.
- *
- * A 'wise' node can be a source. If two 'wise' nodes conflict, it is
- * a split-brain. If one wise node refers to the other but the other doesn't
- * refer back, the referrer is a source.
- *
- * All fools are sinks, unless there are no 'wise' nodes. In that case,
- * one of the fools is made a source.
- */
+
int
-afr_mark_sources (xlator_t *this, int32_t *sources, int32_t **pending_matrix,
- struct iatt *bufs, afr_self_heal_type type,
- int32_t *success_children, int32_t *subvol_status)
+afr_selfheal_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, dict_t *xdata)
{
- /* stores the 'characters' (innocent, fool, wise) of the nodes */
- afr_node_character *characters = NULL;
- int nsources = -1;
- unsigned int child_count = 0;
- afr_private_t *priv = NULL;
-
- priv = this->private;
- child_count = priv->child_count;
- characters = GF_CALLOC (sizeof (afr_node_character),
- child_count, gf_afr_mt_afr_node_character);
- if (!characters)
- goto out;
-
- this = THIS;
-
- /* start clean */
- memset (sources, 0, sizeof (*sources) * child_count);
- nsources = 0;
- afr_find_character_types (characters, pending_matrix, success_children,
- child_count);
- if (afr_sh_all_nodes_innocent (characters, child_count)) {
- switch (type) {
- case AFR_SELF_HEAL_METADATA:
- nsources = afr_sh_mark_lowest_uid_as_source (bufs,
- success_children,
- child_count,
- sources);
- break;
- case AFR_SELF_HEAL_DATA:
- nsources = afr_sh_mark_zero_size_file_as_sink (bufs,
- success_children,
- child_count,
- sources);
- if ((nsources < 0) && subvol_status)
- *subvol_status |= SPLIT_BRAIN;
- break;
- default:
- break;
- }
- goto out;
- }
-
- if (afr_sh_wise_nodes_exist (characters, child_count)) {
- afr_sh_compute_wisdom (pending_matrix, characters, child_count);
-
- if (afr_sh_wise_nodes_conflict (characters, child_count)) {
- if (subvol_status)
- *subvol_status |= SPLIT_BRAIN;
- nsources = -1;
- } else {
- nsources = afr_sh_mark_wisest_as_sources (sources,
- characters,
- child_count);
- }
- } else {
- if (subvol_status)
- *subvol_status |= ALL_FOOLS;
- nsources = afr_mark_biggest_of_fools_as_source (sources,
- pending_matrix,
- characters,
- child_count);
- }
+ afr_local_t *local = NULL;
+ int i = 0;
-out:
- if (nsources == 0)
- afr_mark_success_children_sources (sources, success_children,
- child_count);
- GF_FREE (characters);
+ local = frame->local;
+ i = (long) cookie;
- gf_log (this->name, GF_LOG_DEBUG, "Number of sources: %d", nsources);
- return nsources;
-}
-
-void
-afr_sh_pending_to_delta (afr_private_t *priv, dict_t **xattr,
- int32_t *delta_matrix[], unsigned char success[],
- int child_count, afr_transaction_type type)
-{
- int i = 0;
- int j = 0;
-
- afr_build_pending_matrix (priv->pending_key, delta_matrix, NULL,
- xattr, type, priv->child_count);
- for (i = 0; i < priv->child_count; i++)
- for (j = 0; j < priv->child_count; j++)
- delta_matrix[i][j] = -delta_matrix[i][j];
-}
+ local->replies[i].valid = 1;
+ local->replies[i].op_ret = op_ret;
+ local->replies[i].op_errno = op_errno;
+ syncbarrier_wake (&local->barrier);
-int
-afr_sh_delta_to_xattr (afr_private_t *priv,
- int32_t *delta_matrix[], dict_t *xattr[],
- int child_count, afr_transaction_type type)
-{
- int i = 0;
- int j = 0;
- int k = 0;
- int ret = 0;
- int32_t *pending = NULL;
-
- for (i = 0; i < child_count; i++) {
- if (!xattr[i])
- continue;
-
- for (j = 0; j < child_count; j++) {
- pending = GF_CALLOC (sizeof (int32_t), 3,
- gf_afr_mt_int32_t);
-
- if (!pending)
- continue;
- /* 3 = data+metadata+entry */
-
- k = afr_index_for_transaction_type (type);
-
- pending[k] = hton32 (delta_matrix[i][j]);
-
- ret = dict_set_bin (xattr[i], priv->pending_key[j],
- pending,
- 3 * sizeof (int32_t));
- if (ret < 0)
- gf_log (THIS->name, GF_LOG_WARNING,
- "Unable to set dict value.");
- }
- }
- return 0;
+ return 0;
}
int
-afr_sh_has_metadata_pending (dict_t *xattr, xlator_t *this)
+afr_selfheal_locked_fill (call_frame_t *frame, xlator_t *this,
+ unsigned char *locked_on)
{
- /* Indexable by result of afr_index_for_transaction_type(): 0 -- 2. */
- int32_t pending[3] = {0,};
- void *pending_raw = NULL;
- afr_private_t *priv = NULL;
- int ret = -1;
- int i = 0;
- int j = 0;
-
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- ret = dict_get_ptr (xattr, priv->pending_key[i],
- &pending_raw);
-
- if (ret != 0)
- return 0;
+ int i = 0;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int count = 0;
- memcpy (pending, pending_raw, sizeof(pending));
- j = afr_index_for_transaction_type (AFR_METADATA_TRANSACTION);
+ local = frame->local;
+ priv = this->private;
- if (pending[j])
- return 1;
- }
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->replies[i].valid && local->replies[i].op_ret == 0) {
+ locked_on[i] = 1;
+ count++;
+ } else {
+ locked_on[i] = 0;
+ }
+ }
- return 0;
+ return count;
}
int
-afr_sh_has_data_pending (dict_t *xattr, xlator_t *this)
+afr_selfheal_tryinodelk (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ char *dom, off_t off, size_t size,
+ unsigned char *locked_on)
{
- /* Indexable by result of afr_index_for_transaction_type(): 0 -- 2. */
- int32_t pending[3] = {0,};
- void *pending_raw = NULL;
- afr_private_t *priv = NULL;
- int ret = -1;
- int i = 0;
- int j = 0;
+ loc_t loc = {0,};
+ struct gf_flock flock = {0, };
- priv = this->private;
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
- for (i = 0; i < priv->child_count; i++) {
- ret = dict_get_ptr (xattr, priv->pending_key[i],
- &pending_raw);
+ flock.l_type = F_WRLCK;
+ flock.l_start = off;
+ flock.l_len = size;
- if (ret != 0)
- return 0;
+ AFR_ONALL (frame, afr_selfheal_lock_cbk, inodelk, dom,
+ &loc, F_SETLK, &flock, NULL);
- memcpy (pending, pending_raw, sizeof(pending));
- j = afr_index_for_transaction_type (AFR_DATA_TRANSACTION);
+ loc_wipe (&loc);
- if (pending[j])
- return 1;
- }
-
- return 0;
+ return afr_selfheal_locked_fill (frame, this, locked_on);
}
int
-afr_sh_has_entry_pending (dict_t *xattr, xlator_t *this)
+afr_selfheal_inodelk (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ char *dom, off_t off, size_t size,
+ unsigned char *locked_on)
{
- /* Indexable by result of afr_index_for_transaction_type(): 0 -- 2. */
- int32_t pending[3] = {0,};
- void *pending_raw = NULL;
- afr_private_t *priv = NULL;
- int ret = -1;
- int i = 0;
- int j = 0;
+ loc_t loc = {0,};
+ struct gf_flock flock = {0, };
+ afr_local_t *local = NULL;
+ int i = 0;
+ afr_private_t *priv = NULL;
- priv = this->private;
+ priv = this->private;
+ local = frame->local;
- for (i = 0; i < priv->child_count; i++) {
- ret = dict_get_ptr (xattr, priv->pending_key[i],
- &pending_raw);
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
- if (ret != 0)
- return 0;
+ flock.l_type = F_WRLCK;
+ flock.l_start = off;
+ flock.l_len = size;
- memcpy (pending, pending_raw, sizeof(pending));
- j = afr_index_for_transaction_type (AFR_ENTRY_TRANSACTION);
+ AFR_ONALL (frame, afr_selfheal_lock_cbk, inodelk, dom,
+ &loc, F_SETLK, &flock, NULL);
- if (pending[j])
- return 1;
- }
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->replies[i].op_ret == -1 &&
+ local->replies[i].op_errno == EAGAIN) {
+ afr_selfheal_locked_fill (frame, this, locked_on);
+ afr_selfheal_uninodelk (frame, this, inode, dom, off,
+ size, locked_on);
- return 0;
-}
+ AFR_SEQ (frame, afr_selfheal_lock_cbk, inodelk, dom,
+ &loc, F_SETLKW, &flock, NULL);
+ break;
+ }
+ }
-int
-afr_sh_missing_entries_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- afr_sh_reset (frame, this);
-
- if (local->govinda_gOvinda) {
- gf_log (this->name, GF_LOG_INFO,
- "split brain found, aborting selfheal of %s",
- local->loc.path);
- sh->op_failed = 1;
- }
-
- if (sh->op_failed) {
- sh->completion_cbk (frame, this);
- } else {
- gf_log (this->name, GF_LOG_TRACE,
- "proceeding to metadata check on %s",
- local->loc.path);
- afr_self_heal_metadata (frame, this);
- }
-
- return 0;
+ loc_wipe (&loc);
+
+ return afr_selfheal_locked_fill (frame, this, locked_on);
}
-static int
-afr_sh_missing_entries_finish (call_frame_t *frame, xlator_t *this)
+int
+afr_selfheal_uninodelk (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ char *dom, off_t off, size_t size,
+ const unsigned char *locked_on)
{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
+ loc_t loc = {0,};
+ struct gf_flock flock = {0, };
- local = frame->local;
- int_lock = &local->internal_lock;
- int_lock->lock_cbk = afr_sh_missing_entries_done;
- afr_unlock (frame, this);
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
- return 0;
-}
+ flock.l_type = F_UNLCK;
+ flock.l_start = off;
+ flock.l_len = size;
-int
-afr_sh_common_create (afr_self_heal_t *sh, unsigned int child_count)
-{
- int ret = -ENOMEM;
- sh->buf = GF_CALLOC (child_count, sizeof (*sh->buf),
- gf_afr_mt_iatt);
- if (!sh->buf)
- goto out;
- sh->parentbufs = GF_CALLOC (child_count, sizeof (*sh->parentbufs),
- gf_afr_mt_iatt);
- if (!sh->parentbufs)
- goto out;
- sh->child_errno = GF_CALLOC (child_count, sizeof (*sh->child_errno),
- gf_afr_mt_int);
- if (!sh->child_errno)
- goto out;
- sh->success_children = afr_children_create (child_count);
- if (!sh->success_children)
- goto out;
- sh->fresh_children = afr_children_create (child_count);
- if (!sh->fresh_children)
- goto out;
- sh->xattr = GF_CALLOC (child_count, sizeof (*sh->xattr),
- gf_afr_mt_dict_t);
- if (!sh->xattr)
- goto out;
- ret = 0;
-out:
- return ret;
-}
+ AFR_ONLIST (locked_on, frame, afr_selfheal_lock_cbk, inodelk,
+ dom, &loc, F_SETLK, &flock, NULL);
-void
-afr_sh_common_lookup_resp_handler (call_frame_t *frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *buf,
- dict_t *xattr, struct iatt *postparent,
- loc_t *loc)
-{
- int child_index = 0;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- priv = this->private;
- sh = &local->self_heal;
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (op_ret == 0) {
- sh->buf[child_index] = *buf;
- sh->parentbufs[child_index] = *postparent;
- sh->success_children[sh->success_count] = child_index;
- sh->success_count++;
- sh->xattr[child_index] = dict_ref (xattr);
- } else {
- gf_log (this->name, GF_LOG_ERROR, "path %s on subvolume"
- " %s => -1 (%s)", loc->path,
- priv->children[child_index]->name,
- strerror (op_errno));
- local->self_heal.child_errno[child_index] = op_errno;
- }
- }
- UNLOCK (&frame->lock);
- return;
-}
+ loc_wipe (&loc);
-gf_boolean_t
-afr_valid_ia_type (ia_type_t ia_type)
-{
- switch (ia_type) {
- case IA_IFSOCK:
- case IA_IFREG:
- case IA_IFBLK:
- case IA_IFCHR:
- case IA_IFIFO:
- case IA_IFLNK:
- case IA_IFDIR:
- return _gf_true;
- default:
- return _gf_false;
- }
- return _gf_false;
+ return 0;
}
+
int
-afr_impunge_frame_create (call_frame_t *frame, xlator_t *this,
- int active_source, call_frame_t **impunge_frame)
+afr_selfheal_tryentrylk (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ char *dom, const char *name, unsigned char *locked_on)
{
- afr_local_t *local = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int32_t op_errno = 0;
- afr_private_t *priv = NULL;
- int ret = 0;
- call_frame_t *new_frame = NULL;
-
- op_errno = ENOMEM;
- priv = this->private;
- new_frame = copy_frame (frame);
- if (!new_frame) {
- goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (impunge_local, out);
-
- local = frame->local;
- new_frame->local = impunge_local;
- impunge_sh = &impunge_local->self_heal;
- impunge_sh->sh_frame = frame;
- impunge_sh->active_source = active_source;
- impunge_local->child_up = memdup (local->child_up,
- sizeof (*local->child_up) *
- priv->child_count);
- if (!impunge_local->child_up)
- goto out;
-
- impunge_local->pending = afr_matrix_create (priv->child_count,
- AFR_NUM_CHANGE_LOGS);
- if (!impunge_local->pending)
- goto out;
-
- ret = afr_sh_common_create (impunge_sh, priv->child_count);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
- op_errno = 0;
- *impunge_frame = new_frame;
-out:
- if (op_errno && new_frame)
- AFR_STACK_DESTROY (new_frame);
- return -op_errno;
-}
+ loc_t loc = {0,};
-void
-afr_sh_missing_entry_call_impunge_recreate (call_frame_t *frame, xlator_t *this,
- struct iatt *buf,
- struct iatt *postparent,
- afr_impunge_done_cbk_t impunge_done)
-{
- call_frame_t *impunge_frame = NULL;
- afr_local_t *local = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int ret = 0;
- unsigned int enoent_count = 0;
- afr_private_t *priv = NULL;
- int i = 0;
- int32_t op_errno = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- enoent_count = afr_errno_count (NULL, sh->child_errno,
- priv->child_count, ENOENT);
- if (!enoent_count) {
- gf_log (this->name, GF_LOG_INFO,
- "no missing files - %s. proceeding to metadata check",
- local->loc.path);
- goto out;
- }
- sh->impunge_done = impunge_done;
- ret = afr_impunge_frame_create (frame, this, sh->source, &impunge_frame);
- if (ret)
- goto out;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- loc_copy (&impunge_local->loc, &local->loc);
- ret = afr_build_parent_loc (&impunge_sh->parent_loc,
- &impunge_local->loc, &op_errno);
- if (ret) {
- ret = -op_errno;
- goto out;
- }
- impunge_local->call_count = enoent_count;
- impunge_sh->entrybuf = sh->buf[sh->source];
- impunge_sh->parentbuf = sh->parentbufs[sh->source];
- for (i = 0; i < priv->child_count; i++) {
- if (!impunge_local->child_up[i]) {
- impunge_sh->child_errno[i] = ENOTCONN;
- continue;
- }
- if (sh->child_errno[i] != ENOENT) {
- impunge_sh->child_errno[i] = EEXIST;
- continue;
- }
- }
- for (i = 0; i < priv->child_count; i++) {
- if (sh->child_errno[i] != ENOENT)
- continue;
- afr_sh_entry_impunge_create (impunge_frame, this, i);
- enoent_count--;
- }
- GF_ASSERT (!enoent_count);
- return;
-out:
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "impunge of %s failed, "
- "reason: %s", local->loc.path, strerror (-ret));
- sh->op_failed = 1;
- }
- afr_sh_missing_entries_finish (frame, this);
-}
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
-int
-afr_sh_create_entry_cbk (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- if (op_ret < 0)
- sh->op_failed = 1;
- afr_sh_missing_entries_finish (frame, this);
- return 0;
-}
+ AFR_ONALL (frame, afr_selfheal_lock_cbk, entrylk, dom,
+ &loc, name, ENTRYLK_LOCK_NB, ENTRYLK_WRLCK, NULL);
-static int
-sh_missing_entries_create (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int type = 0;
- struct iatt *buf = NULL;
- struct iatt *postparent = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- buf = &sh->buf[sh->source];
- postparent = &sh->parentbufs[sh->source];
-
- type = buf->ia_type;
- if (!afr_valid_ia_type (type)) {
- gf_log (this->name, GF_LOG_ERROR,
- "%s: unknown file type: 0%o", local->loc.path, type);
- local->govinda_gOvinda = 1;
- afr_sh_missing_entries_finish (frame, this);
- goto out;
- }
-
- afr_sh_missing_entry_call_impunge_recreate (frame, this,
- buf, postparent,
- afr_sh_create_entry_cbk);
-out:
- return 0;
-}
+ loc_wipe (&loc);
-void
-afr_sh_missing_entries_lookup_done (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- ia_type_t ia_type = IA_INVAL;
- int32_t nsources = 0;
- loc_t *loc = NULL;
- int32_t subvol_status = 0;
- afr_transaction_type txn_type = AFR_DATA_TRANSACTION;
- gf_boolean_t split_brain = _gf_false;
- int read_child = -1;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
- loc = &local->loc;
-
- if (op_ret < 0) {
- if (op_errno == EIO)
- local->govinda_gOvinda = 1;
- // EIO can happen if finding the fresh parent dir failed
- goto out;
- }
-
- //now No chance for the ia_type to conflict
- ia_type = sh->buf[sh->success_children[0]].ia_type;
- txn_type = afr_transaction_type_get (ia_type);
- nsources = afr_build_sources (this, sh->xattr, sh->buf,
- sh->pending_matrix, sh->sources,
- sh->success_children, txn_type,
- &subvol_status, _gf_false);
- if (nsources < 0) {
- gf_log (this->name, GF_LOG_INFO, "No sources for dir of %s,"
- " in missing entry self-heal, continuing with the rest"
- " of the self-heals", local->loc.path);
- if (subvol_status & SPLIT_BRAIN) {
- split_brain = _gf_true;
- switch (txn_type) {
- case AFR_DATA_TRANSACTION:
- nsources = 1;
- sh->sources[sh->success_children[0]] = 1;
- break;
- case AFR_ENTRY_TRANSACTION:
- read_child = afr_get_no_xattr_dir_read_child
- (this,
- sh->success_children,
- sh->buf);
- sh->sources[read_child] = 1;
- nsources = 1;
- break;
- default:
- op_errno = EIO;
- goto out;
- }
- } else {
- op_errno = EIO;
- goto out;
- }
- }
-
- afr_get_fresh_children (sh->success_children, sh->sources,
- sh->fresh_children, priv->child_count);
- sh->source = sh->fresh_children[0];
- if (sh->source == -1) {
- gf_log (this->name, GF_LOG_DEBUG, "No active sources found.");
- op_errno = EIO;
- goto out;
- }
-
- if (sh->gfid_sh_success_cbk)
- sh->gfid_sh_success_cbk (frame, this);
- sh->type = sh->buf[sh->source].ia_type;
- if (uuid_is_null (loc->inode->gfid))
- uuid_copy (loc->gfid, sh->buf[sh->source].ia_gfid);
- if (split_brain) {
- afr_sh_missing_entries_finish (frame, this);
- } else {
- sh_missing_entries_create (frame, this);
- }
- return;
-out:
- sh->op_failed = 1;
- afr_sh_set_error (sh, op_errno);
- afr_sh_missing_entries_finish (frame, this);
- return;
+ return afr_selfheal_locked_fill (frame, this, locked_on);
}
-static int
-afr_sh_common_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, inode_t *inode,
- struct iatt *buf, dict_t *xattr,
- struct iatt *postparent)
-{
- int call_count = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- afr_sh_common_lookup_resp_handler (frame, cookie, this, op_ret,
- op_errno, inode, buf, xattr,
- postparent, &sh->lookup_loc);
- call_count = afr_frame_return (frame);
-
- if (call_count)
- goto out;
- op_ret = -1;
- if (!sh->success_count) {
- op_errno = afr_resultant_errno_get (NULL, sh->child_errno,
- priv->child_count);
- gf_log (this->name, GF_LOG_ERROR, "Failed to lookup %s, "
- "reason %s", sh->lookup_loc.path,
- strerror (op_errno));
- goto done;
- }
-
- if ((sh->lookup_flags & AFR_LOOKUP_FAIL_CONFLICTS) &&
- (afr_conflicting_iattrs (sh->buf, sh->success_children,
- priv->child_count,
- sh->lookup_loc.path, this->name))) {
- op_errno = EIO;
- gf_log (this->name, GF_LOG_ERROR, "Conflicting entries "
- "for %s", sh->lookup_loc.path);
- goto done;
- }
-
- if ((sh->lookup_flags & AFR_LOOKUP_FAIL_MISSING_GFIDS) &&
- (afr_gfid_missing_count (this->name, sh->success_children,
- sh->buf, priv->child_count,
- sh->lookup_loc.path))) {
- op_errno = ENODATA;
- gf_log (this->name, GF_LOG_ERROR, "Missing Gfids "
- "for %s", sh->lookup_loc.path);
- goto done;
- }
- op_ret = 0;
-
-done:
- sh->lookup_done (frame, this, op_ret, op_errno);
-out:
- return 0;
-}
int
-afr_sh_remove_entry_cbk (call_frame_t *frame, xlator_t *this, int child,
- int32_t op_ret, int32_t op_errno)
+afr_selfheal_entrylk (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ char *dom, const char *name, unsigned char *locked_on)
{
- int call_count = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- GF_ASSERT (sh->post_remove_call);
- if ((op_ret == -1) && (op_errno != ENOENT)) {
- gf_log (this->name, GF_LOG_ERROR,
- "purge entry %s failed, on child %d reason, %s",
- local->loc.path, child, strerror (op_errno));
- LOCK (&frame->lock);
- {
- afr_sh_set_error (sh, EIO);
- sh->op_failed = 1;
- }
- UNLOCK (&frame->lock);
- }
- call_count = afr_frame_return (frame);
- if (call_count == 0)
- sh->post_remove_call (frame, this);
- return 0;
-}
+ loc_t loc = {0,};
+ afr_local_t *local = NULL;
+ int i = 0;
+ afr_private_t *priv = NULL;
-void
-afr_sh_call_entry_expunge_remove (call_frame_t *frame, xlator_t *this,
- int child_index, struct iatt *buf,
- struct iatt *parentbuf,
- afr_expunge_done_cbk_t expunge_done)
-{
- call_frame_t *expunge_frame = NULL;
- afr_local_t *local = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- int32_t op_errno = 0;
- int ret = 0;
-
- expunge_frame = copy_frame (frame);
- if (!expunge_frame) {
- goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (expunge_local, out);
-
- local = frame->local;
- sh = &local->self_heal;
- expunge_frame->local = expunge_local;
- expunge_sh = &expunge_local->self_heal;
- expunge_sh->sh_frame = frame;
- loc_copy (&expunge_local->loc, &local->loc);
- ret = afr_build_parent_loc (&expunge_sh->parent_loc,
- &expunge_local->loc, &op_errno);
- if (ret) {
- ret = -op_errno;
- goto out;
- }
- sh->expunge_done = expunge_done;
- afr_sh_entry_expunge_remove (expunge_frame, this, child_index, buf,
- parentbuf);
- return;
-out:
- gf_log (this->name, GF_LOG_ERROR, "Expunge of %s failed, reason: %s",
- local->loc.path, strerror (op_errno));
- expunge_done (frame, this, child_index, -1, op_errno);
-}
+ priv = this->private;
+ local = frame->local;
-void
-afr_sh_remove_stale_lookup_info (afr_self_heal_t *sh, int32_t *success_children,
- int32_t *fresh_children,
- unsigned int child_count)
-{
- int i = 0;
-
- for (i = 0; i < child_count; i++) {
- if (afr_is_child_present (success_children, child_count, i) &&
- !afr_is_child_present (fresh_children, child_count, i)) {
- sh->child_errno[i] = ENOENT;
- GF_ASSERT (sh->xattr[i]);
- dict_unref (sh->xattr[i]);
- sh->xattr[i] = NULL;
- }
- }
-}
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
-int
-afr_sh_purge_stale_entries_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- if (sh->op_failed) {
- afr_sh_missing_entries_finish (frame, this);
- } else {
- if (afr_gfid_missing_count (this->name, sh->fresh_children,
- sh->buf, priv->child_count,
- local->loc.path)) {
- afr_sh_common_lookup (frame, this, &local->loc,
- afr_sh_missing_entries_lookup_done,
- sh->sh_gfid_req,
- AFR_LOOKUP_FAIL_CONFLICTS|
- AFR_LOOKUP_FAIL_MISSING_GFIDS,
- NULL);
- } else {
- //No need to set gfid so goto missing entries lookup done
- //Behave as if you have done the lookup
- afr_sh_remove_stale_lookup_info (sh,
- sh->success_children,
- sh->fresh_children,
- priv->child_count);
- afr_children_copy (sh->success_children,
- sh->fresh_children,
- priv->child_count);
- afr_sh_missing_entries_lookup_done (frame, this, 0, 0);
- }
- }
- return 0;
-}
+ AFR_ONALL (frame, afr_selfheal_lock_cbk, entrylk, dom, &loc,
+ name, ENTRYLK_LOCK_NB, ENTRYLK_WRLCK, NULL);
-gf_boolean_t
-afr_sh_purge_entry_condition (afr_local_t *local, afr_private_t *priv,
- int child)
-{
- afr_self_heal_t *sh = NULL;
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->replies[i].op_ret == -1 &&
+ local->replies[i].op_errno == EAGAIN) {
+ afr_selfheal_locked_fill (frame, this, locked_on);
+ afr_selfheal_unentrylk (frame, this, inode, dom, name,
+ locked_on);
- sh = &local->self_heal;
+ AFR_SEQ (frame, afr_selfheal_lock_cbk, entrylk, dom,
+ &loc, name, ENTRYLK_LOCK, ENTRYLK_WRLCK, NULL);
+ break;
+ }
+ }
- if (local->child_up[child] &&
- (!afr_is_child_present (sh->fresh_parent_dirs, priv->child_count,
- child))
- && (sh->child_errno[child] != ENOENT))
- return _gf_true;
+ loc_wipe (&loc);
- return _gf_false;
+ return afr_selfheal_locked_fill (frame, this, locked_on);
}
-gf_boolean_t
-afr_sh_purge_stale_entry_condition (afr_local_t *local, afr_private_t *priv,
- int child)
+
+int
+afr_selfheal_unentrylk (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ char *dom, const char *name, unsigned char *locked_on)
{
- afr_self_heal_t *sh = NULL;
+ loc_t loc = {0,};
- sh = &local->self_heal;
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
- if (local->child_up[child] &&
- (!afr_is_child_present (sh->fresh_children, priv->child_count,
- child))
- && (sh->child_errno[child] != ENOENT))
- return _gf_true;
+ AFR_ONLIST (locked_on, frame, afr_selfheal_lock_cbk, entrylk,
+ dom, &loc, name, ENTRYLK_UNLOCK, ENTRYLK_WRLCK, NULL);
- return _gf_false;
-}
+ loc_wipe (&loc);
-void
-afr_sh_purge_entry_common (call_frame_t *frame, xlator_t *this,
- gf_boolean_t purge_condition (afr_local_t *local,
- afr_private_t *priv,
- int child))
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
- int i = 0;
- int call_count = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- if (purge_condition (local, priv, i))
- call_count++;
- }
-
- if (call_count == 0) {
- sh->post_remove_call (frame, this);
- goto out;
- }
-
- local->call_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (!purge_condition (local, priv, i))
- continue;
- gf_log (this->name, GF_LOG_INFO, "purging the stale entry %s "
- "on %d", local->loc.path, i);
- afr_sh_call_entry_expunge_remove (frame, this,
- (long) i, &sh->buf[i],
- &sh->parentbufs[i],
- afr_sh_remove_entry_cbk);
- }
-out:
- return;
+ return 0;
}
-void
-afr_sh_purge_entry (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- sh->post_remove_call = afr_sh_missing_entries_finish;
- afr_sh_purge_entry_common (frame, this, afr_sh_purge_entry_condition);
-}
-
-void
-afr_sh_purge_stale_entry (call_frame_t *frame, xlator_t *this)
+gf_boolean_t
+afr_is_pending_set (xlator_t *this, dict_t *xdata, int type)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int i = 0;
+ int idx = -1;
+ afr_private_t *priv = NULL;
+ void *pending_raw = NULL;
+ int *pending_int = NULL;
+ int i = 0;
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
+ priv = this->private;
+ idx = afr_index_for_transaction_type (type);
- sh->post_remove_call = afr_sh_purge_stale_entries_done;
+ if (dict_get_ptr (xdata, AFR_DIRTY, &pending_raw) == 0) {
+ if (pending_raw) {
+ pending_int = pending_raw;
- for (i = 0; i < priv->child_count; i++) {
- if (afr_is_child_present (sh->fresh_children,
- priv->child_count, i))
- continue;
+ if (ntoh32 (pending_int[idx]))
+ return _gf_true;
+ }
+ }
- if ((!local->child_up[i]) || sh->child_errno[i] != 0)
- continue;
+ for (i = 0; i < priv->child_count; i++) {
+ if (dict_get_ptr (xdata, priv->pending_key[i],
+ &pending_raw))
+ continue;
+ if (!pending_raw)
+ continue;
+ pending_int = pending_raw;
- GF_ASSERT (!uuid_is_null (sh->entrybuf.ia_gfid) ||
- uuid_is_null (sh->buf[i].ia_gfid));
+ if (ntoh32 (pending_int[idx]))
+ return _gf_true;
+ }
- if ((sh->entrybuf.ia_type != sh->buf[i].ia_type) ||
- (uuid_compare (sh->buf[i].ia_gfid,
- sh->entrybuf.ia_gfid)))
- continue;
+ return _gf_false;
+}
- afr_children_add_child (sh->fresh_children, i,
- priv->child_count);
- }
- afr_sh_purge_entry_common (frame, this,
- afr_sh_purge_stale_entry_condition);
+gf_boolean_t
+afr_is_data_set (xlator_t *this, dict_t *xdata)
+{
+ return afr_is_pending_set (this, xdata, AFR_DATA_TRANSACTION);
}
-void
-afr_sh_save_child_iatts_from_policy (int32_t *children, struct iatt *bufs,
- struct iatt *save,
- unsigned int child_count)
+gf_boolean_t
+afr_is_metadata_set (xlator_t *this, dict_t *xdata)
{
- int i = 0;
- int child = 0;
- gf_boolean_t saved = _gf_false;
-
- GF_ASSERT (save);
- //if iatt buf with gfid exists sets it
- for (i = 0; i < child_count; i++) {
- child = children[i];
- if (child == -1)
- break;
- *save = bufs[child];
- saved = _gf_true;
- if (!uuid_is_null (save->ia_gfid))
- break;
- }
- GF_ASSERT (saved);
+ return afr_is_pending_set (this, xdata, AFR_METADATA_TRANSACTION);
}
-void
-afr_get_children_of_fresh_parent_dirs (afr_self_heal_t *sh,
- unsigned int child_count)
+gf_boolean_t
+afr_is_entry_set (xlator_t *this, dict_t *xdata)
{
- afr_children_intersection_get (sh->success_children,
- sh->fresh_parent_dirs,
- sh->sources, child_count);
- afr_get_fresh_children (sh->success_children, sh->sources,
- sh->fresh_children, child_count);
- memset (sh->sources, 0, sizeof (*sh->sources) * child_count);
+ return afr_is_pending_set (this, xdata, AFR_ENTRY_TRANSACTION);
}
+
void
-afr_sh_children_lookup_done (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
+afr_inode_link (inode_t *inode, struct iatt *iatt)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int32_t fresh_child_enoents = 0;
- int32_t fresh_parent_count = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- if (op_ret < 0)
- goto fail;
- afr_get_children_of_fresh_parent_dirs (sh, priv->child_count);
- fresh_parent_count = afr_get_children_count (sh->fresh_parent_dirs,
- priv->child_count);
- //we need the enoent count of the subvols present in fresh_parent_dirs
- fresh_child_enoents = afr_errno_count (sh->fresh_parent_dirs,
- sh->child_errno,
- priv->child_count, ENOENT);
- if (fresh_child_enoents == fresh_parent_count) {
- gf_log (this->name, GF_LOG_INFO, "Deleting stale file %s",
- local->loc.path);
- afr_sh_set_error (sh, ENOENT);
- sh->op_failed = 1;
- afr_sh_purge_entry (frame, this);
- } else if (!afr_conflicting_iattrs (sh->buf, sh->fresh_children,
- priv->child_count, local->loc.path,
- this->name)) {
- afr_sh_save_child_iatts_from_policy (sh->fresh_children,
- sh->buf, &sh->entrybuf,
- priv->child_count);
- afr_update_gfid_from_iatts (sh->sh_gfid_req, sh->buf,
- sh->fresh_children,
- priv->child_count);
- afr_sh_purge_stale_entry (frame, this);
- } else {
- op_errno = EIO;
- local->govinda_gOvinda = 1;
- goto fail;
- }
-
- return;
-
-fail:
- sh->op_failed = 1;
- afr_sh_set_error (sh, op_errno);
- afr_sh_missing_entries_finish (frame, this);
- return;
-}
+ inode_t *linked_inode = NULL;
-static void
-afr_sh_find_fresh_parents (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
-{
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- int enoent_count = 0;
- int nsources = 0;
- int source = -1;
- int32_t subvol_status = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- if (op_ret < 0)
- goto out;
- enoent_count = afr_errno_count (NULL, sh->child_errno,
- priv->child_count, ENOENT);
- if (enoent_count > 0) {
- gf_log (this->name, GF_LOG_INFO, "Parent dir missing for %s,"
- " in missing entry self-heal, aborting missing-entry "
- "self-heal",
- local->loc.path);
- afr_sh_missing_entries_finish (frame, this);
- return;
- }
-
- nsources = afr_build_sources (this, sh->xattr, sh->buf,
- sh->pending_matrix, sh->sources,
- sh->success_children,
- AFR_ENTRY_TRANSACTION, &subvol_status,
- _gf_true);
- if ((subvol_status & ALL_FOOLS) ||
- (subvol_status & SPLIT_BRAIN)) {
- gf_log (this->name, GF_LOG_INFO, "%s: Performing conservative "
- "merge", sh->parent_loc.path);
- afr_mark_success_children_sources (sh->sources,
- sh->success_children,
- priv->child_count);
- } else if (nsources < 0) {
- gf_log (this->name, GF_LOG_ERROR, "No sources for dir "
- "of %s, in missing entry self-heal, aborting "
- "self-heal", local->loc.path);
- op_errno = EIO;
- goto out;
- }
-
- source = afr_sh_select_source (sh->sources, priv->child_count);
- if (source == -1) {
- GF_ASSERT (0);
- gf_log (this->name, GF_LOG_DEBUG, "No active sources found.");
- op_errno = EIO;
- goto out;
- }
- afr_get_fresh_children (sh->success_children, sh->sources,
- sh->fresh_parent_dirs, priv->child_count);
- afr_sh_common_lookup (frame, this, &local->loc,
- afr_sh_children_lookup_done, NULL, 0,
- NULL);
- return;
+ linked_inode = inode_link (inode, NULL, NULL, iatt);
-out:
- afr_sh_set_error (sh, op_errno);
- sh->op_failed = 1;
- afr_sh_missing_entries_finish (frame, this);
- return;
-}
+ uuid_copy (inode->gfid, iatt->ia_gfid);
+ inode->ia_type = iatt->ia_type;
-void
-afr_sh_common_reset (afr_self_heal_t *sh, unsigned int child_count)
-{
- int i = 0;
-
- for (i = 0; i < child_count; i++) {
- memset (&sh->buf[i], 0, sizeof (sh->buf[i]));
- memset (&sh->parentbufs[i], 0, sizeof (sh->parentbufs[i]));
- sh->child_errno[i] = 0;
- }
- memset (&sh->parentbuf, 0, sizeof (sh->parentbuf));
- sh->success_count = 0;
- afr_reset_children (sh->success_children, child_count);
- afr_reset_children (sh->fresh_children, child_count);
- afr_reset_xattr (sh->xattr, child_count);
- loc_wipe (&sh->lookup_loc);
+ if (linked_inode) {
+ inode_lookup (linked_inode);
+ inode_unref (linked_inode);
+ }
}
-/* afr self-heal state will be lost if this call is made
- * please check the afr_sh_common_reset that is called in this function
+
+/*
+ * This function inspects the looked up replies (in an unlocked manner)
+ * and decides whether a locked verification and possible healing is
+ * required or not. It updates the three booleans for each type
+ * of healing. If the boolean flag gets set to FALSE, then we are sure
+ * no healing is required. If the boolean flag gets set to TRUE then
+ * we have to proceed with locked reinspection.
*/
+
int
-afr_sh_common_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
- afr_lookup_done_cbk_t lookup_done , uuid_t gfid,
- int32_t flags, dict_t *xdata)
-{
- afr_local_t *local = NULL;
- int i = 0;
- int call_count = 0;
- afr_private_t *priv = NULL;
- dict_t *xattr_req = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- priv = this->private;
- sh = &local->self_heal;
-
- call_count = afr_up_children_count (local->child_up, priv->child_count);
-
- local->call_count = call_count;
-
- xattr_req = dict_new();
-
- if (xattr_req) {
- afr_xattr_req_prepare (this, xattr_req, loc->path);
- if (gfid) {
- gf_log (this->name, GF_LOG_DEBUG,
- "looking up %s with gfid: %s",
- loc->path, uuid_utoa (gfid));
- GF_ASSERT (!uuid_is_null (gfid));
- afr_set_dict_gfid (xattr_req, gfid);
- }
- }
-
- afr_sh_common_reset (sh, priv->child_count);
- sh->lookup_done = lookup_done;
- loc_copy (&sh->lookup_loc, loc);
- sh->lookup_flags = flags;
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i]) {
- gf_log (this->name, GF_LOG_DEBUG,
- "looking up %s on subvolume %s",
- loc->path, priv->children[i]->name);
-
- STACK_WIND_COOKIE (frame,
- afr_sh_common_lookup_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->lookup,
- loc, xattr_req);
-
- if (!--call_count)
- break;
- }
- }
-
- if (xattr_req)
- dict_unref (xattr_req);
-
- return 0;
-}
+afr_selfheal_unlocked_inspect (call_frame_t *frame, xlator_t *this,
+ inode_t *inode, uuid_t gfid,
+ gf_boolean_t *data_selfheal,
+ gf_boolean_t *metadata_selfheal,
+ gf_boolean_t *entry_selfheal)
+{
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int valid_cnt = 0;
+ struct iatt first = {0, };
+ struct afr_reply *replies = NULL;
+ int ret = -1;
+
+ priv = this->private;
+
+ replies = alloca0 (sizeof (*replies) * priv->child_count);
+
+ ret = afr_selfheal_unlocked_discover (frame, inode, gfid, replies);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!replies[i].valid)
+ continue;
+ if (replies[i].op_ret == -1)
+ continue;
+
+ if (afr_is_data_set (this, replies[i].xdata))
+ *data_selfheal = _gf_true;
+
+ if (afr_is_metadata_set (this, replies[i].xdata))
+ *metadata_selfheal = _gf_true;
+ if (afr_is_entry_set (this, replies[i].xdata))
+ *entry_selfheal = _gf_true;
+ valid_cnt ++;
+ if (valid_cnt == 1) {
+ first = replies[i].poststat;
+ continue;
+ }
-int
-afr_sh_post_nb_entrylk_conflicting_sh_cbk (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- sh = &local->self_heal;
-
- if (int_lock->lock_op_ret < 0) {
- gf_log (this->name, GF_LOG_INFO,
- "Non blocking entrylks failed.");
- sh->op_failed = -1;
- afr_sh_missing_entries_done (frame, this);
- } else {
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Non blocking entrylks done. Proceeding to FOP");
- afr_sh_common_lookup (frame, this, &sh->parent_loc,
- afr_sh_find_fresh_parents,
- NULL, AFR_LOOKUP_FAIL_CONFLICTS,
- NULL);
- }
-
- return 0;
-}
+ if (!IA_EQUAL (first, replies[i].poststat, type)) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "TYPE mismatch %d vs %d on %s for gfid:%s",
+ (int) first.ia_type,
+ (int) replies[i].poststat.ia_type,
+ priv->children[i]->name,
+ uuid_utoa (replies[i].poststat.ia_gfid));
+ return -EIO;
+ }
-int
-afr_sh_post_nb_entrylk_gfid_sh_cbk (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- int_lock = &local->internal_lock;
-
- if (int_lock->lock_op_ret < 0) {
- gf_log (this->name, GF_LOG_INFO,
- "Non blocking entrylks failed.");
- afr_sh_missing_entries_done (frame, this);
- } else {
- gf_log (this->name, GF_LOG_DEBUG,
- "Non blocking entrylks done. Proceeding to FOP");
- afr_sh_common_lookup (frame, this, &local->loc,
- afr_sh_missing_entries_lookup_done,
- sh->sh_gfid_req, AFR_LOOKUP_FAIL_CONFLICTS|
- AFR_LOOKUP_FAIL_MISSING_GFIDS,
- NULL);
- }
-
- return 0;
-}
+ if (!IA_EQUAL (first, replies[i].poststat, uid)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "UID mismatch %d vs %d on %s for gfid:%s",
+ (int) first.ia_uid,
+ (int) replies[i].poststat.ia_uid,
+ priv->children[i]->name,
+ uuid_utoa (replies[i].poststat.ia_gfid));
-int
-afr_sh_entrylk (call_frame_t *frame, xlator_t *this, loc_t *loc,
- char *base_name, afr_lock_cbk_t lock_cbk)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
+ *metadata_selfheal = _gf_true;
+ }
- local = frame->local;
- int_lock = &local->internal_lock;
+ if (!IA_EQUAL (first, replies[i].poststat, gid)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "GID mismatch %d vs %d on %s for gfid:%s",
+ (int) first.ia_uid,
+ (int) replies[i].poststat.ia_uid,
+ priv->children[i]->name,
+ uuid_utoa (replies[i].poststat.ia_gfid));
- int_lock->transaction_lk_type = AFR_SELFHEAL_LK;
- int_lock->selfheal_lk_type = AFR_ENTRY_SELF_HEAL_LK;
+ *metadata_selfheal = _gf_true;
+ }
- afr_set_lock_number (frame, this);
+ if (!IA_EQUAL (first, replies[i].poststat, prot)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "MODE mismatch %d vs %d on %s for gfid:%s",
+ (int) st_mode_from_ia (first.ia_prot, 0),
+ (int) st_mode_from_ia (replies[i].poststat.ia_prot, 0),
+ priv->children[i]->name,
+ uuid_utoa (replies[i].poststat.ia_gfid));
- int_lock->lk_basename = base_name;
- int_lock->lk_loc = loc;
- int_lock->lock_cbk = lock_cbk;
+ *metadata_selfheal = _gf_true;
+ }
- afr_nonblocking_entrylk (frame, this);
+ if (IA_ISREG(first.ia_type) &&
+ !IA_EQUAL (first, replies[i].poststat, size)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "SIZE mismatch %lld vs %lld on %s for gfid:%s",
+ (long long) first.ia_size,
+ (long long) replies[i].poststat.ia_size,
+ priv->children[i]->name,
+ uuid_utoa (replies[i].poststat.ia_gfid));
- return 0;
-}
+ *data_selfheal = _gf_true;
+ }
+ }
-static int
-afr_self_heal_parent_entrylk (call_frame_t *frame, xlator_t *this,
- afr_lock_cbk_t lock_cbk)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_internal_lock_t *int_lock = NULL;
- int ret = -1;
- int32_t op_errno = 0;
-
- local = frame->local;
- sh = &local->self_heal;
-
- gf_log (this->name, GF_LOG_TRACE,
- "attempting to recreate missing entries for path=%s",
- local->loc.path);
-
- ret = afr_build_parent_loc (&sh->parent_loc, &local->loc, &op_errno);
- if (ret)
- goto out;
-
- afr_sh_entrylk (frame, this, &sh->parent_loc, NULL,
- lock_cbk);
- return 0;
-out:
- int_lock = &local->internal_lock;
- int_lock->lock_op_ret = -1;
- lock_cbk (frame, this);
- return 0;
-}
+ if (valid_cnt > 0)
+ afr_inode_link (inode, &first);
-static int
-afr_self_heal_conflicting_entries (call_frame_t *frame, xlator_t *this)
-{
- afr_self_heal_parent_entrylk (frame, this,
- afr_sh_post_nb_entrylk_conflicting_sh_cbk);
- return 0;
-}
+ if (valid_cnt < 2)
+ return -ENOTCONN;
-static int
-afr_self_heal_gfids (call_frame_t *frame, xlator_t *this)
-{
- afr_self_heal_parent_entrylk (frame, this,
- afr_sh_post_nb_entrylk_gfid_sh_cbk);
- return 0;
+ return 0;
}
-afr_local_t *afr_local_copy (afr_local_t *l, xlator_t *this)
+
+inode_t *
+afr_inode_find (xlator_t *this, uuid_t gfid)
{
- afr_private_t *priv = NULL;
- afr_local_t *lc = NULL;
- afr_self_heal_t *sh = NULL;
- afr_self_heal_t *shc = NULL;
-
- priv = this->private;
-
- sh = &l->self_heal;
-
- lc = mem_get0 (this->local_pool);
- if (!lc)
- goto out;
-
- shc = &lc->self_heal;
-
- shc->unwind = sh->unwind;
- shc->gfid_sh_success_cbk = sh->gfid_sh_success_cbk;
- shc->do_missing_entry_self_heal = sh->do_missing_entry_self_heal;
- shc->do_gfid_self_heal = sh->do_gfid_self_heal;
- shc->do_data_self_heal = sh->do_data_self_heal;
- shc->do_metadata_self_heal = sh->do_metadata_self_heal;
- shc->do_entry_self_heal = sh->do_entry_self_heal;
- shc->forced_merge = sh->forced_merge;
- shc->background = sh->background;
- shc->type = sh->type;
-
- uuid_copy (shc->sh_gfid_req, sh->sh_gfid_req);
- if (l->loc.path)
- loc_copy (&lc->loc, &l->loc);
-
- lc->child_up = memdup (l->child_up,
- sizeof (*lc->child_up) * priv->child_count);
- if (l->xattr_req)
- lc->xattr_req = dict_ref (l->xattr_req);
-
- if (l->cont.lookup.inode)
- lc->cont.lookup.inode = inode_ref (l->cont.lookup.inode);
- if (l->cont.lookup.xattr)
- lc->cont.lookup.xattr = dict_ref (l->cont.lookup.xattr);
- if (l->internal_lock.inode_locked_nodes)
- lc->internal_lock.inode_locked_nodes =
- memdup (l->internal_lock.inode_locked_nodes,
- sizeof (*lc->internal_lock.inode_locked_nodes) * priv->child_count);
- else
- lc->internal_lock.inode_locked_nodes =
- GF_CALLOC (sizeof (*l->internal_lock.inode_locked_nodes),
- priv->child_count,
- gf_afr_mt_char);
- if (l->internal_lock.entry_locked_nodes)
- lc->internal_lock.entry_locked_nodes =
- memdup (l->internal_lock.entry_locked_nodes,
- sizeof (*lc->internal_lock.entry_locked_nodes) * priv->child_count);
- else
- lc->internal_lock.entry_locked_nodes =
- GF_CALLOC (sizeof (*l->internal_lock.entry_locked_nodes),
- priv->child_count,
- gf_afr_mt_char);
- if (l->internal_lock.locked_nodes)
- lc->internal_lock.locked_nodes =
- memdup (l->internal_lock.locked_nodes,
- sizeof (*lc->internal_lock.locked_nodes) * priv->child_count);
- else
- lc->internal_lock.locked_nodes =
- GF_CALLOC (sizeof (*l->internal_lock.locked_nodes),
- priv->child_count,
- gf_afr_mt_char);
-
- lc->internal_lock.inodelk_lock_count =
- l->internal_lock.inodelk_lock_count;
- lc->internal_lock.entrylk_lock_count =
- l->internal_lock.entrylk_lock_count;
+ inode_table_t *table = NULL;
+ inode_t *inode = NULL;
-out:
- return lc;
-}
+ table = this->itable;
+ if (!table)
+ return NULL;
-int
-afr_self_heal_completion_cbk (call_frame_t *bgsh_frame, xlator_t *this)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- afr_self_heal_t * sh = NULL;
- char sh_type_str[256] = {0,};
- gf_boolean_t split_brain = _gf_false;
-
- priv = this->private;
- local = bgsh_frame->local;
- sh = &local->self_heal;
-
- if (local->govinda_gOvinda)
- split_brain = _gf_true;
-
- afr_set_split_brain (this, sh->inode, split_brain);
-
- afr_self_heal_type_str_get (sh, sh_type_str,
- sizeof(sh_type_str));
- if (sh->op_failed) {
- gf_log (this->name, GF_LOG_ERROR, "background %s self-heal "
- "failed on %s", sh_type_str, local->loc.path);
- } else {
- gf_log (this->name, GF_LOG_INFO, "background %s self-heal "
- "completed on %s", sh_type_str, local->loc.path);
- }
-
- FRAME_SU_UNDO (bgsh_frame, afr_local_t);
-
- if (!sh->unwound && sh->unwind) {
- sh->unwind (sh->orig_frame, this, sh->op_ret, sh->op_errno,
- sh->op_failed);
- }
-
- if (sh->background) {
- LOCK (&priv->lock);
- {
- priv->background_self_heals_started--;
- }
- UNLOCK (&priv->lock);
- }
-
- AFR_STACK_DESTROY (bgsh_frame);
-
- return 0;
-}
+ inode = inode_find (table, gfid);
+ if (inode)
+ return inode;
-int
-afr_self_heal (call_frame_t *frame, xlator_t *this, inode_t *inode)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int32_t op_errno = 0;
- int ret = 0;
- afr_self_heal_t *orig_sh = NULL;
- call_frame_t *sh_frame = NULL;
- afr_local_t *sh_local = NULL;
- loc_t *loc = NULL;
-
- local = frame->local;
- orig_sh = &local->self_heal;
- priv = this->private;
-
- GF_ASSERT (local->loc.path);
-
- gf_log (this->name, GF_LOG_TRACE,
- "performing self heal on %s (metadata=%d data=%d entry=%d)",
- local->loc.path,
- local->self_heal.do_metadata_self_heal,
- local->self_heal.do_data_self_heal,
- local->self_heal.do_entry_self_heal);
-
- op_errno = ENOMEM;
- sh_frame = copy_frame (frame);
- if (!sh_frame)
- goto out;
- afr_set_lk_owner (sh_frame, this, sh_frame->root);
- afr_set_low_priority (sh_frame);
-
- sh_local = afr_local_copy (local, this);
- if (!sh_local)
- goto out;
- sh_frame->local = sh_local;
- sh = &sh_local->self_heal;
-
- sh->inode = inode_ref (inode);
- sh_local->govinda_gOvinda = afr_is_split_brain (this, sh->inode);
-
- sh->orig_frame = frame;
-
- sh->completion_cbk = afr_self_heal_completion_cbk;
-
- sh->success = GF_CALLOC (priv->child_count, sizeof (*sh->success),
- gf_afr_mt_char);
- if (!sh->success)
- goto out;
- sh->sources = GF_CALLOC (sizeof (*sh->sources), priv->child_count,
- gf_afr_mt_int);
- if (!sh->sources)
- goto out;
- sh->locked_nodes = GF_CALLOC (sizeof (*sh->locked_nodes),
- priv->child_count,
- gf_afr_mt_int);
- if (!sh->locked_nodes)
- goto out;
-
- sh->pending_matrix = afr_matrix_create (priv->child_count,
- priv->child_count);
- if (!sh->pending_matrix)
- goto out;
-
- sh->delta_matrix = afr_matrix_create (priv->child_count,
- priv->child_count);
- if (!sh->delta_matrix)
- goto out;
-
- sh->fresh_parent_dirs = afr_children_create (priv->child_count);
- if (!sh->fresh_parent_dirs)
- goto out;
- ret = afr_sh_common_create (sh, priv->child_count);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
-
- if (local->self_heal.background) {
- LOCK (&priv->lock);
- {
- if (priv->background_self_heals_started
- < priv->background_self_heal_count) {
- priv->background_self_heals_started++;
-
-
- } else {
- local->self_heal.background = _gf_false;
- sh->background = _gf_false;
- }
- }
- UNLOCK (&priv->lock);
- }
-
- if (!local->loc.parent) {
- sh->do_missing_entry_self_heal = _gf_false;
- sh->do_gfid_self_heal = _gf_false;
- }
-
- FRAME_SU_DO (sh_frame, afr_local_t);
- if (sh->do_missing_entry_self_heal) {
- afr_self_heal_conflicting_entries (sh_frame, this);
- } else if (sh->do_gfid_self_heal) {
- GF_ASSERT (!uuid_is_null (sh->sh_gfid_req));
- afr_self_heal_gfids (sh_frame, this);
- } else {
- loc = &sh_local->loc;
- if (uuid_is_null (loc->inode->gfid) && uuid_is_null (loc->gfid)) {
- if (!uuid_is_null (inode->gfid))
- GF_ASSERT (!uuid_compare (inode->gfid,
- sh->sh_gfid_req));
- uuid_copy (loc->gfid, sh->sh_gfid_req);
- }
- gf_log (this->name, GF_LOG_TRACE,
- "proceeding to metadata check on %s",
- local->loc.path);
-
- afr_sh_missing_entries_done (sh_frame, this);
- }
- op_errno = 0;
+ inode = inode_new (table);
+ if (!inode)
+ return NULL;
-out:
- if (op_errno) {
- orig_sh->unwind (frame, this, -1, op_errno, 1);
- if (sh_frame)
- AFR_STACK_DESTROY (sh_frame);
- }
- return 0;
+ uuid_copy (inode->gfid, gfid);
+
+ return inode;
}
-void
-afr_self_heal_type_str_get (afr_self_heal_t *self_heal_p, char *str,
- size_t size)
+
+call_frame_t *
+afr_frame_create (xlator_t *this)
{
- GF_ASSERT (str && (size > strlen (" missing-entry gfid "
- "meta-data data entry")));
+ call_frame_t *frame = NULL;
+ afr_local_t *local = NULL;
+ int op_errno = 0;
+ pid_t pid = -1;
- if (self_heal_p->do_metadata_self_heal) {
- snprintf (str, size, " meta-data");
- }
+ frame = create_frame (this, this->ctx->pool);
+ if (!frame)
+ return NULL;
- if (self_heal_p->do_data_self_heal) {
- snprintf (str + strlen(str), size - strlen(str), " data");
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local) {
+ STACK_DESTROY (frame->root);
+ return NULL;
+ }
- if (self_heal_p->do_entry_self_heal) {
- snprintf (str + strlen(str), size - strlen(str), " entry");
- }
+ syncopctx_setfspid (&pid);
- if (self_heal_p->do_missing_entry_self_heal) {
- snprintf (str + strlen(str), size - strlen(str),
- " missing-entry");
- }
+ frame->root->pid = pid;
- if (self_heal_p->do_gfid_self_heal) {
- snprintf (str + strlen(str), size - strlen(str), " gfid");
- }
-}
+ afr_set_lk_owner (frame, this, frame->root);
-afr_self_heal_type
-afr_self_heal_type_for_transaction (afr_transaction_type type)
-{
- afr_self_heal_type sh_type = AFR_SELF_HEAL_INVALID;
-
- switch (type) {
- case AFR_DATA_TRANSACTION:
- sh_type = AFR_SELF_HEAL_DATA;
- break;
- case AFR_METADATA_TRANSACTION:
- sh_type = AFR_SELF_HEAL_METADATA;
- break;
- case AFR_ENTRY_TRANSACTION:
- sh_type = AFR_SELF_HEAL_ENTRY;
- break;
- case AFR_ENTRY_RENAME_TRANSACTION:
- GF_ASSERT (0);
- break;
- }
- return sh_type;
+ return frame;
}
-int
-afr_build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name)
-{
- int ret = -1;
- uuid_t pargfid = {0};
- if (!child)
- goto out;
+/*
+ * This is the entry point for healing a given GFID
+ */
- if (!uuid_is_null (parent->inode->gfid))
- uuid_copy (pargfid, parent->inode->gfid);
- else if (!uuid_is_null (parent->gfid))
- uuid_copy (pargfid, parent->gfid);
+int
+afr_selfheal (xlator_t *this, uuid_t gfid)
+{
+ inode_t *inode = NULL;
+ call_frame_t *frame = NULL;
+ int ret = -1;
+ gf_boolean_t data_selfheal = _gf_false;
+ gf_boolean_t metadata_selfheal = _gf_false;
+ gf_boolean_t entry_selfheal = _gf_false;
- if (uuid_is_null (pargfid))
- goto out;
+ inode = afr_inode_find (this, gfid);
+ if (!inode)
+ goto out;
- if (strcmp (parent->path, "/") == 0)
- ret = gf_asprintf ((char **)&child->path, "/%s", name);
- else
- ret = gf_asprintf ((char **)&child->path, "%s/%s", parent->path,
- name);
+ frame = afr_frame_create (this);
+ if (!frame)
+ goto out;
- if (-1 == ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "asprintf failed while setting child path");
- }
+ ret = afr_selfheal_unlocked_inspect (frame, this, inode, gfid,
+ &data_selfheal,
+ &metadata_selfheal,
+ &entry_selfheal);
+ if (ret)
+ goto out;
- child->name = strrchr (child->path, '/');
- if (child->name)
- child->name++;
+ if (data_selfheal)
+ afr_selfheal_data (frame, this, inode);
- child->parent = inode_ref (parent->inode);
- child->inode = inode_new (parent->inode->table);
- uuid_copy (child->pargfid, pargfid);
+ if (metadata_selfheal)
+ afr_selfheal_metadata (frame, this, inode);
- if (!child->inode) {
- ret = -1;
- goto out;
- }
+ if (entry_selfheal)
+ afr_selfheal_entry (frame, this, inode);
- ret = 0;
+ inode_forget (inode, 1);
out:
- if ((ret == -1) && child)
- loc_wipe (child);
+ if (inode)
+ inode_unref (inode);
+ if (frame)
+ AFR_STACK_DESTROY (frame);
- return ret;
+ return ret;
}
diff --git a/xlators/cluster/afr/src/afr-self-heal-common.h b/xlators/cluster/afr/src/afr-self-heal-common.h
deleted file mode 100644
index d104593ac..000000000
--- a/xlators/cluster/afr/src/afr-self-heal-common.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
- This file is part of GlusterFS.
-
- This file is licensed to you under your choice of the GNU Lesser
- General Public License, version 3 or any later version (LGPLv3 or
- later), or the GNU General Public License, version 2 (GPLv2), in all
- cases as published by the Free Software Foundation.
-*/
-
-#ifndef __AFR_SELF_HEAL_COMMON_H__
-#define __AFR_SELF_HEAL_COMMON_H__
-
-#define FILE_HAS_HOLES(buf) (((buf)->ia_size) > ((buf)->ia_blocks * 512))
-#define AFR_SH_MIN_PARTICIPANTS 2
-
-typedef enum {
- AFR_SELF_HEAL_ENTRY,
- AFR_SELF_HEAL_METADATA,
- AFR_SELF_HEAL_DATA,
- AFR_SELF_HEAL_INVALID = -1,
-} afr_self_heal_type;
-
-typedef enum {
- AFR_LOOKUP_FAIL_CONFLICTS = 1,
- AFR_LOOKUP_FAIL_MISSING_GFIDS = 2,
-} afr_lookup_flags_t;
-
-int
-afr_sh_select_source (int sources[], int child_count);
-
-int
-afr_sh_source_count (int sources[], int child_count);
-
-void
-afr_sh_print_pending_matrix (int32_t *pending_matrix[], xlator_t *this);
-
-int
-afr_build_pending_matrix (char **pending_key, int32_t **pending_matrix,
- unsigned char *ignorant_subvols,
- dict_t *xattr[], afr_transaction_type type,
- size_t child_count);
-
-void
-afr_sh_pending_to_delta (afr_private_t *priv, dict_t **xattr,
- int32_t *delta_matrix[], unsigned char success[],
- int child_count, afr_transaction_type type);
-
-int
-afr_mark_sources (xlator_t *this, int32_t *sources, int32_t **pending_matrix,
- struct iatt *bufs, afr_self_heal_type type,
- int32_t *success_children, int32_t *subvol_status);
-
-int
-afr_sh_delta_to_xattr (afr_private_t *priv,
- int32_t *delta_matrix[], dict_t *xattr[],
- int child_count, afr_transaction_type type);
-
-void
-afr_self_heal_type_str_get (afr_self_heal_t *self_heal_p, char *str,
- size_t size);
-
-afr_self_heal_type
-afr_self_heal_type_for_transaction (afr_transaction_type type);
-
-int
-afr_build_sources (xlator_t *this, dict_t **xattr, struct iatt *bufs,
- int32_t **pending_matrix, int32_t *sources,
- int32_t *success_children, afr_transaction_type type,
- int32_t *subvol_status, gf_boolean_t ignore_ignorant);
-void
-afr_sh_common_reset (afr_self_heal_t *sh, unsigned int child_count);
-
-void
-afr_sh_common_lookup_resp_handler (call_frame_t *frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *buf,
- dict_t *xattr, struct iatt *postparent,
- loc_t *loc);
-
-int
-afr_sh_common_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
- afr_lookup_done_cbk_t lookup_cbk, uuid_t uuid,
- int32_t flags, dict_t *xdata);
-int
-afr_sh_entry_expunge_remove (call_frame_t *expunge_frame, xlator_t *this,
- int active_src, struct iatt *buf,
- struct iatt *parentbuf);
-int
-afr_sh_entrylk (call_frame_t *frame, xlator_t *this, loc_t *loc,
- char *base_name, afr_lock_cbk_t lock_cbk);
-int
-afr_sh_entry_impunge_create (call_frame_t *impunge_frame, xlator_t *this,
- int child_index);
-int
-afr_sh_data_unlock (call_frame_t *frame, xlator_t *this,
- afr_lock_cbk_t lock_cbk);
-afr_local_t *
-afr_local_copy (afr_local_t *l, xlator_t *this);
-int
-afr_sh_data_lock (call_frame_t *frame, xlator_t *this,
- off_t start, off_t len,
- afr_lock_cbk_t success_handler,
- afr_lock_cbk_t failure_handler);
-void
-afr_sh_set_error (afr_self_heal_t *sh, int32_t op_errno);
-void
-afr_sh_mark_source_sinks (call_frame_t *frame, xlator_t *this);
-typedef int
-(*afr_fxattrop_cbk_t) (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- dict_t *xattr, dict_t *xdata);
-int
-afr_build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name);
-int
-afr_impunge_frame_create (call_frame_t *frame, xlator_t *this,
- int active_source, call_frame_t **impunge_frame);
-void
-afr_sh_reset (call_frame_t *frame, xlator_t *this);
-
-void
-afr_children_intersection_get (int32_t *set1, int32_t *set2,
- int *intersection, unsigned int child_count);
-int
-afr_get_no_xattr_dir_read_child (xlator_t *this, int32_t *success_children,
- struct iatt *bufs);
-#endif /* __AFR_SELF_HEAL_COMMON_H__ */
diff --git a/xlators/cluster/afr/src/afr-self-heal-data.c b/xlators/cluster/afr/src/afr-self-heal-data.c
index 462ee8823..c0548d995 100644
--- a/xlators/cluster/afr/src/afr-self-heal-data.c
+++ b/xlators/cluster/afr/src/afr-self-heal-data.c
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
+ Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
@@ -8,1400 +8,628 @@
cases as published by the Free Software Foundation.
*/
-#include <libgen.h>
-#include <unistd.h>
-#include <fnmatch.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include <signal.h>
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
-#include "glusterfs.h"
#include "afr.h"
-#include "dict.h"
-#include "xlator.h"
-#include "hashfn.h"
-#include "logging.h"
-#include "stack.h"
-#include "list.h"
-#include "call-stub.h"
-#include "defaults.h"
-#include "common-utils.h"
-#include "compat-errno.h"
-#include "compat.h"
-#include "byte-order.h"
-
-#include "afr-transaction.h"
#include "afr-self-heal.h"
-#include "afr-self-heal-common.h"
-#include "afr-self-heal-algorithm.h"
-
-int
-afr_sh_data_fail (call_frame_t *frame, xlator_t *this);
-
-static inline gf_boolean_t
-afr_sh_data_proceed (unsigned int success_count)
-{
- return (success_count >= AFR_SH_MIN_PARTICIPANTS);
-}
-
-extern int
-sh_loop_finish (call_frame_t *loop_frame, xlator_t *this);
-
-int
-afr_post_sh_big_lock_success (call_frame_t *frame, xlator_t *this);
-
-int
-afr_post_sh_big_lock_failure (call_frame_t *frame, xlator_t *this);
-
-int
-afr_sh_data_finish (call_frame_t *frame, xlator_t *this);
-
-int
-afr_sh_data_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- sh->completion_cbk (frame, this);
+#include "byte-order.h"
- return 0;
-}
+enum {
+ AFR_SELFHEAL_DATA_FULL = 0,
+ AFR_SELFHEAL_DATA_DIFF,
+};
-int
-afr_sh_data_flush_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xdata)
+#define HAS_HOLES(i) ((i->ia_blocks * 512) < (i->ia_size))
+static int
+__checksum_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, uint32_t weak, uint8_t *strong,
+ dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int child_index = (long) cookie;
-
- local = frame->local;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "flush failed on %s on subvolume %s: %s",
- local->loc.path, priv->children[child_index]->name,
- strerror (op_errno));
- }
- }
- UNLOCK (&frame->lock);
+ afr_local_t *local = NULL;
+ int i = (long) cookie;
- call_count = afr_frame_return (frame);
+ local = frame->local;
- if (call_count == 0) {
- afr_sh_data_done (frame, this);
- }
+ local->replies[i].valid = 1;
+ local->replies[i].op_ret = op_ret;
+ local->replies[i].op_errno = op_errno;
+ if (strong)
+ memcpy (local->replies[i].checksum, strong, MD5_DIGEST_LENGTH);
- return 0;
+ syncbarrier_wake (&local->barrier);
+ return 0;
}
-int
-afr_sh_data_close (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
- int i = 0;
- int call_count = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- call_count = afr_set_elem_count_get (sh->success,
- priv->child_count);
- local->call_count = call_count;
-
- if (call_count == 0) {
- afr_sh_data_done (frame, this);
- return 0;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (!sh->success[i])
- continue;
- gf_log (this->name, GF_LOG_DEBUG,
- "closing fd of %s on %s",
- local->loc.path, priv->children[i]->name);
-
- STACK_WIND_COOKIE (frame, afr_sh_data_flush_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->flush,
- sh->healing_fd, NULL);
-
- if (!--call_count)
- break;
- }
- return 0;
-}
-
-int
-afr_sh_data_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *statpre,
- struct iatt *statpost, dict_t *xdata)
-{
-
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int child_index = (long) cookie;
-
- local = frame->local;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "setattr failed on %s on subvolume %s: %s",
- local->loc.path, priv->children[child_index]->name,
- strerror (op_errno));
- }
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- afr_sh_data_finish (frame, this);
- }
-
- return 0;
-}
-
-int
-afr_sh_data_setattr (call_frame_t *frame, xlator_t *this)
+static int
+attr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, struct iatt *pre, struct iatt *post,
+ dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
- int i = 0;
- int call_count = 0;
- int source = 0;
- int32_t valid = 0;
- struct iatt stbuf = {0,};
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- source = sh->source;
-
- valid |= (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME);
-
- stbuf.ia_atime = sh->buf[source].ia_atime;
- stbuf.ia_atime_nsec = sh->buf[source].ia_atime_nsec;
- stbuf.ia_mtime = sh->buf[source].ia_mtime;
- stbuf.ia_mtime_nsec = sh->buf[source].ia_mtime_nsec;
-
- call_count = afr_set_elem_count_get (sh->success,
- priv->child_count);
- local->call_count = call_count;
-
- if (call_count == 0) {
- GF_ASSERT (0);
- afr_sh_data_finish (frame, this);
- return 0;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (!sh->success[i])
- continue;
+ int i = (long) cookie;
+ afr_local_t *local = NULL;
- STACK_WIND_COOKIE (frame, afr_sh_data_setattr_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->setattr,
- &local->loc, &stbuf, valid, NULL);
+ local = frame->local;
- if (!--call_count)
- break;
- }
-
- return 0;
-}
+ local->replies[i].valid = 1;
+ local->replies[i].op_ret = op_ret;
+ local->replies[i].op_errno = op_errno;
+ if (pre)
+ local->replies[i].prestat = *pre;
+ if (post)
+ local->replies[i].poststat = *post;
+ if (xdata)
+ local->replies[i].xdata = dict_ref (xdata);
-int
-afr_sh_data_setattr_fstat_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- struct iatt *buf, dict_t *xdata)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int child_index = (long) cookie;
-
- local = frame->local;
- sh = &local->self_heal;
-
- GF_ASSERT (sh->source == child_index);
- if (op_ret != -1) {
- sh->buf[child_index] = *buf;
- afr_sh_data_setattr (frame, this);
- } else {
- gf_log (this->name, GF_LOG_ERROR, "%s: Failed to set "
- "time-stamps after self-heal", local->loc.path);
- afr_sh_data_fail (frame, this);
- }
+ syncbarrier_wake (&local->barrier);
- return 0;
+ return 0;
}
-/*
- * If there are any writes after the self-heal is triggered then the
- * stbuf stored in local->self_heal.buf[] will be invalid so we do one more
- * stat on the source and then set the [am]times
- */
-int
-afr_sh_set_timestamps (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- STACK_WIND_COOKIE (frame, afr_sh_data_setattr_fstat_cbk,
- (void *) (long) sh->source,
- priv->children[sh->source],
- priv->children[sh->source]->fops->fstat,
- sh->healing_fd, NULL);
- return 0;
-}
-//Fun fact, lock_cbk is being used for both lock & unlock
-int
-afr_sh_data_unlock (call_frame_t *frame, xlator_t *this,
- afr_lock_cbk_t lock_cbk)
+static gf_boolean_t
+__afr_selfheal_data_checksums_match (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int source,
+ unsigned char *healed_sinks,
+ off_t offset, size_t size)
{
- afr_local_t *local = NULL;
- afr_internal_lock_t *int_lock = NULL;
- afr_self_heal_t *sh = NULL;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ unsigned char *wind_subvols = NULL;
+ int i = 0;
- local = frame->local;
- int_lock = &local->internal_lock;
- sh = &local->self_heal;
+ priv = this->private;
+ local = frame->local;
- GF_ASSERT (sh->data_lock_held);
+ wind_subvols = alloca0 (priv->child_count);
+ for (i = 0; i < priv->child_count; i++) {
+ if (i == source || healed_sinks[i])
+ wind_subvols[i] = 1;
+ }
- sh->data_lock_held = _gf_false;
- int_lock->lock_cbk = lock_cbk;
- afr_unlock (frame, this);
+ AFR_ONLIST (wind_subvols, frame, __checksum_cbk, rchecksum, fd,
+ offset, size, NULL);
- return 0;
-}
+ if (!local->replies[source].valid || local->replies[source].op_ret != 0)
+ return _gf_false;
-int
-afr_sh_data_finish (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "finishing data selfheal of %s", local->loc.path);
+ for (i = 0; i < priv->child_count; i++) {
+ if (i == source)
+ continue;
+ if (memcmp (local->replies[source].checksum,
+ local->replies[i].checksum,
+ MD5_DIGEST_LENGTH))
+ return _gf_false;
+ }
- if (sh->data_lock_held)
- afr_sh_data_unlock (frame, this, afr_sh_data_close);
- else
- afr_sh_data_close (frame, this);
-
- return 0;
+ return _gf_true;
}
-int
-afr_sh_data_fail (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- gf_log (this->name, GF_LOG_DEBUG,
- "finishing failed data selfheal of %s", local->loc.path);
-
- sh->op_failed = 1;
- if (sh->data_lock_held)
- afr_sh_data_unlock (frame, this, afr_sh_data_close);
- else
- afr_sh_data_close (frame, this);
- return 0;
+static int
+__afr_selfheal_data_read_write (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int source, unsigned char *healed_sinks,
+ off_t offset, size_t size,
+ struct afr_reply *replies)
+{
+ struct iovec *iovec = NULL;
+ int count = 0;
+ struct iobref *iobref = NULL;
+ int ret = 0;
+ int i = 0;
+ afr_private_t *priv = NULL;
+
+ priv = this->private;
+
+ ret = syncop_readv (priv->children[source], fd, size, offset, 0,
+ &iovec, &count, &iobref);
+ if (ret <= 0)
+ return ret;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!healed_sinks[i])
+ continue;
+
+ /*
+ * TODO: Use fiemap() and discard() to heal holes
+ * in the future.
+ *
+ * For now,
+ *
+ * - if the source had any holes at all,
+ * AND
+ * - if we are writing past the original file size
+ * of the sink
+ * AND
+ * - is NOT the last block of the source file. if
+ * the block contains EOF, it has to be written
+ * in order to set the file size even if the
+ * last block is 0-filled.
+ * AND
+ * - if the read buffer is filled with only 0's
+ *
+ * then, skip writing to this source. We don't depend
+ * on the write to happen to update the size as we
+ * have performed an ftruncate() upfront anyways.
+ */
+#define is_last_block(o,b,s) ((s >= o) && (s <= (o + b)))
+ if (HAS_HOLES ((&replies[source].poststat)) &&
+ offset >= replies[i].poststat.ia_size &&
+ !is_last_block (offset, size,
+ replies[source].poststat.ia_size) &&
+ (iov_0filled (iovec, count) == 0))
+ continue;
+
+ ret = syncop_writev (priv->children[i], fd, iovec, count,
+ offset, iobref, 0);
+ if (ret != iov_length (iovec, count)) {
+ /* write() failed on this sink. unset the corresponding
+ member in sinks[] (which is healed_sinks[] in the
+ caller) so that this server does NOT get considered
+ as successfully healed.
+ */
+ healed_sinks[i] = 0;
+ }
+ }
+ if (iobref)
+ iobref_unref (iobref);
+
+ return ret;
}
-int
-afr_sh_data_erase_pending_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret,
- int32_t op_errno, dict_t *xattr, dict_t *xdata)
-{
- int call_count = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int32_t child_index = (long) cookie;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
- if (op_ret < 0) {
- gf_log (this->name, GF_LOG_ERROR, "Erasing of pending change "
- "log failed on %s for subvol %s, reason: %s",
- local->loc.path, priv->children[child_index]->name,
- strerror (op_errno));
- sh->op_failed = 1;
- }
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- if (sh->op_failed) {
- if (sh->old_loop_frame)
- sh_loop_finish (sh->old_loop_frame, this);
- sh->old_loop_frame = NULL;
- afr_sh_data_fail (frame, this);
- goto out;
- }
- if (!IA_ISREG (sh->type)) {
- afr_sh_data_finish (frame, this);
- goto out;
- }
- GF_ASSERT (sh->old_loop_frame);
- afr_sh_data_lock (frame, this, 0, 0,
- afr_post_sh_big_lock_success,
- afr_post_sh_big_lock_failure);
- }
-out:
- return 0;
+static int
+afr_selfheal_data_block (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int source, unsigned char *healed_sinks, off_t offset,
+ size_t size, int type, struct afr_reply *replies)
+{
+ int ret = -1;
+ int sink_count = 0;
+ afr_private_t *priv = NULL;
+ unsigned char *data_lock = NULL;
+
+ priv = this->private;
+ sink_count = AFR_COUNT (healed_sinks, priv->child_count);
+ data_lock = alloca0 (priv->child_count);
+
+ ret = afr_selfheal_inodelk (frame, this, fd->inode, this->name,
+ offset, size, data_lock);
+ {
+ if (ret < sink_count) {
+ ret = -ENOTCONN;
+ goto unlock;
+ }
+
+ if (type == AFR_SELFHEAL_DATA_DIFF &&
+ __afr_selfheal_data_checksums_match (frame, this, fd, source,
+ healed_sinks, offset, size)) {
+ ret = 0;
+ goto unlock;
+ }
+
+ ret = __afr_selfheal_data_read_write (frame, this, fd, source,
+ healed_sinks, offset, size,
+ replies);
+ }
+unlock:
+ afr_selfheal_uninodelk (frame, this, fd->inode, this->name,
+ offset, size, data_lock);
+ return ret;
}
-int
-afr_sh_data_erase_pending (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int i = 0;
- dict_t **erase_xattr = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- afr_sh_pending_to_delta (priv, sh->xattr, sh->delta_matrix, sh->success,
- priv->child_count, AFR_DATA_TRANSACTION);
- gf_log (this->name, GF_LOG_DEBUG, "Delta matrix for: %s",
- lkowner_utoa (&frame->root->lk_owner));
- afr_sh_print_pending_matrix (sh->delta_matrix, this);
-
- erase_xattr = GF_CALLOC (sizeof (*erase_xattr), priv->child_count,
- gf_afr_mt_dict_t);
-
- for (i = 0; i < priv->child_count; i++) {
- if (sh->xattr[i]) {
- call_count++;
-
- erase_xattr[i] = get_new_dict();
- dict_ref (erase_xattr[i]);
- }
- }
-
- afr_sh_delta_to_xattr (priv, sh->delta_matrix, erase_xattr,
- priv->child_count, AFR_DATA_TRANSACTION);
-
- GF_ASSERT (call_count);
- local->call_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (!erase_xattr[i])
- continue;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "erasing pending flags from %s on %s",
- local->loc.path, priv->children[i]->name);
-
- STACK_WIND_COOKIE (frame, afr_sh_data_erase_pending_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fxattrop,
- sh->healing_fd,
- GF_XATTROP_ADD_ARRAY, erase_xattr[i],
- NULL);
- if (!--call_count)
- break;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (erase_xattr[i]) {
- dict_unref (erase_xattr[i]);
- }
- }
- GF_FREE (erase_xattr);
-
- return 0;
-}
-static struct afr_sh_algorithm *
-sh_algo_from_name (xlator_t *this, char *name)
+static int
+afr_selfheal_data_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ unsigned char *healed_sinks)
{
- int i = 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
- while (afr_self_heal_algorithms[i].name) {
- if (!strcmp (name, afr_self_heal_algorithms[i].name)) {
- return &afr_self_heal_algorithms[i];
- }
+ local = frame->local;
+ priv = this->private;
- i++;
- }
+ AFR_ONLIST (healed_sinks, frame, attr_cbk, fsync, fd, 0, NULL);
- return NULL;
+ for (i = 0; i < priv->child_count; i++)
+ if (healed_sinks[i] && local->replies[i].op_ret != 0)
+ /* fsync() failed. Do NOT consider this server
+ as successfully healed. Mark it so.
+ */
+ healed_sinks[i] = 0;
+ return 0;
}
static int
-sh_zero_byte_files_exist (afr_local_t *local, int child_count)
+afr_selfheal_data_restore_time (call_frame_t *frame, xlator_t *this,
+ inode_t *inode, int source,
+ unsigned char *healed_sinks,
+ struct afr_reply *replies)
{
- int i = 0;
- int ret = 0;
- afr_self_heal_t *sh = NULL;
-
- sh = &local->self_heal;
- for (i = 0; i < child_count; i++) {
- if (!local->child_up[i] || sh->child_errno[i])
- continue;
- if (sh->buf[i].ia_size == 0) {
- ret = 1;
- break;
- }
- }
+ loc_t loc = {0, };
- return ret;
-}
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
+ AFR_ONLIST (healed_sinks, frame, attr_cbk, setattr, &loc,
+ &replies[source].poststat,
+ (GF_SET_ATTR_ATIME|GF_SET_ATTR_MTIME), NULL);
-struct afr_sh_algorithm *
-afr_sh_data_pick_algo (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t * priv = NULL;
- struct afr_sh_algorithm * algo = NULL;
- afr_local_t * local = NULL;
- afr_self_heal_t * sh = NULL;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
- algo = sh_algo_from_name (this, priv->data_self_heal_algorithm);
-
- if (algo == NULL) {
- /* option not set, so fall back on heuristics */
-
- if (sh_zero_byte_files_exist (local, priv->child_count)
- || (sh->file_size <= (priv->data_self_heal_window_size *
- this->ctx->page_size))) {
-
- /*
- * If the file does not exist on one of the subvolumes,
- * or a zero-byte file exists (created by entry self-heal)
- * the entire content has to be copied anyway, so there
- * is no benefit from using the "diff" algorithm.
- *
- * If the file size is about the same as page size,
- * the entire file can be read and written with a few
- * (pipelined) STACK_WINDs, which will be faster
- * than "diff" which has to read checksums and then
- * read and write.
- */
-
- algo = sh_algo_from_name (this, "full");
-
- } else {
- algo = sh_algo_from_name (this, "diff");
- }
- }
+ loc_wipe (&loc);
- return algo;
+ return 0;
}
-
-int
-afr_sh_data_sync_prepare (call_frame_t *frame, xlator_t *this)
+static int
+afr_data_self_heal_type_get (afr_private_t *priv, unsigned char *healed_sinks,
+ int source, struct afr_reply *replies)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- struct afr_sh_algorithm *sh_algo = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- sh->algo_completion_cbk = afr_sh_data_erase_pending;
- sh->algo_abort_cbk = afr_sh_data_fail;
-
- sh_algo = afr_sh_data_pick_algo (frame, this);
-
- sh->algo = sh_algo;
- sh_algo->fn (frame, this);
-
- return 0;
-}
+ int type = AFR_SELFHEAL_DATA_FULL;
+ int i = 0;
-int
-afr_sh_data_trim_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
- struct iatt *postbuf, dict_t *xdata)
-{
- int call_count = 0;
- int child_index = 0;
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "ftruncate of %s on subvolume %s failed (%s)",
- local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- sh->op_failed = 1;
- } else {
- gf_log (this->name, GF_LOG_DEBUG,
- "ftruncate of %s on subvolume %s completed",
- local->loc.path,
- priv->children[child_index]->name);
+ if (priv->data_self_heal_algorithm == NULL) {
+ type = AFR_SELFHEAL_DATA_FULL;
+ for (i = 0; i < priv->child_count; i++) {
+ if (!healed_sinks[i] && i != source)
+ continue;
+ if (replies[i].poststat.ia_size) {
+ type = AFR_SELFHEAL_DATA_DIFF;
+ break;
+ }
}
+ } else if (strcmp (priv->data_self_heal_algorithm, "full") == 0) {
+ type = AFR_SELFHEAL_DATA_FULL;
+ } else if (strcmp (priv->data_self_heal_algorithm, "diff") == 0) {
+ type = AFR_SELFHEAL_DATA_DIFF;
}
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- if (sh->op_failed)
- afr_sh_data_fail (frame, this);
- else
- afr_sh_data_sync_prepare (frame, this);
- }
-
- return 0;
-}
-
-
-int
-afr_sh_data_trim_sinks (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- afr_self_heal_t *sh = NULL;
- int *sources = NULL;
- int call_count = 0;
- int i = 0;
-
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- sources = sh->sources;
- call_count = sh->active_sinks;
-
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (sources[i] || !local->child_up[i])
- continue;
-
- STACK_WIND_COOKIE (frame, afr_sh_data_trim_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->ftruncate,
- sh->healing_fd, sh->file_size,
- NULL);
-
- if (!--call_count)
- break;
- }
-
- return 0;
+ return type;
}
-int
-afr_sh_inode_set_read_ctx (afr_self_heal_t *sh, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- int ret = 0;
- int i = 0;
-
- priv = this->private;
- sh->source = afr_sh_select_source (sh->sources, priv->child_count);
- if (sh->source < 0) {
- ret = -1;
- goto out;
- }
-
- /* detect changes not visible through pending flags -- JIC */
- for (i = 0; i < priv->child_count; i++) {
- if (i == sh->source || sh->child_errno[i])
- continue;
-
- if (SIZE_DIFFERS (&sh->buf[i], &sh->buf[sh->source]))
- sh->sources[i] = 0;
- }
+static int
+afr_selfheal_data_do (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int source, unsigned char *healed_sinks,
+ struct afr_reply *replies)
+{
+ afr_private_t *priv = NULL;
+ int i = 0;
+ off_t off = 0;
+ size_t block = 128 * 1024;
+ int type = AFR_SELFHEAL_DATA_FULL;
+ int ret = -1;
+ call_frame_t *iter_frame = NULL;
+ char *sinks_str = NULL;
+ char *p = NULL;
+
+ priv = this->private;
+
+ sinks_str = alloca0 (priv->child_count * 8);
+ p = sinks_str;
+ for (i = 0; i < priv->child_count; i++) {
+ if (!healed_sinks[i])
+ continue;
+ p += sprintf (p, "%d ", i);
+ }
+
+ gf_log (this->name, GF_LOG_INFO, "performing data selfheal on %s. "
+ "source=%d sinks=%s",
+ uuid_utoa (fd->inode->gfid), source, sinks_str);
+
+ type = afr_data_self_heal_type_get (priv, healed_sinks, source,
+ replies);
+
+ iter_frame = afr_copy_frame (frame);
+ if (!iter_frame)
+ return -ENOMEM;
+
+ for (off = 0; off < replies[source].poststat.ia_size; off += block) {
+ ret = afr_selfheal_data_block (iter_frame, this, fd, source,
+ healed_sinks, off, block, type,
+ replies);
+ if (ret < 0)
+ goto out;
+
+ AFR_STACK_RESET (iter_frame);
+ }
+
+ afr_selfheal_data_restore_time (frame, this, fd->inode, source,
+ healed_sinks, replies);
+
+ ret = afr_selfheal_data_fsync (frame, this, fd, healed_sinks);
- afr_reset_children (sh->fresh_children, priv->child_count);
- afr_get_fresh_children (sh->success_children, sh->sources,
- sh->fresh_children, priv->child_count);
- afr_inode_set_read_ctx (this, sh->inode, sh->source,
- sh->fresh_children);
out:
- return ret;
+ if (iter_frame)
+ AFR_STACK_DESTROY (iter_frame);
+ return ret;
}
-void
-afr_sh_data_fix (call_frame_t *frame, xlator_t *this)
-{
- int source = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- source = sh->source;
- sh->block_size = this->ctx->page_size;
- sh->file_size = sh->buf[source].ia_size;
-
- if (FILE_HAS_HOLES (&sh->buf[source]))
- sh->file_has_holes = 1;
-
- if (sh->background && sh->unwind && !sh->unwound) {
- sh->unwind (sh->orig_frame, this, sh->op_ret, sh->op_errno,
- sh->op_failed);
- sh->unwound = _gf_true;
- }
- afr_sh_mark_source_sinks (frame, this);
- if (sh->active_sinks == 0) {
- gf_log (this->name, GF_LOG_INFO,
- "no active sinks for performing self-heal on file %s",
- local->loc.path);
- afr_sh_data_finish (frame, this);
- return;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "self-healing file %s from subvolume %s to %d other",
- local->loc.path, priv->children[sh->source]->name,
- sh->active_sinks);
- afr_sh_data_trim_sinks (frame, this);
-}
-
-int
-afr_sh_data_fxattrop_fstat_done (call_frame_t *frame, xlator_t *this)
+static int
+__afr_selfheal_truncate_sinks (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, unsigned char *healed_sinks,
+ struct afr_reply *replies, uint64_t size)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int nsources = 0;
- int ret = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- gf_log (this->name, GF_LOG_DEBUG, "Pending matrix for: %s",
- lkowner_utoa (&frame->root->lk_owner));
-
- nsources = afr_build_sources (this, sh->xattr, sh->buf, sh->pending_matrix,
- sh->sources, sh->success_children,
- AFR_DATA_TRANSACTION, NULL, _gf_true);
- if ((nsources == 0) && !sh->sync_done) {
- gf_log (this->name, GF_LOG_DEBUG,
- "No self-heal needed for %s",
- local->loc.path);
-
- local->govinda_gOvinda = 0;
- afr_sh_data_finish (frame, this);
- return 0;
- }
-
- if ((nsources == -1)
- && (priv->favorite_child != -1)
- && (sh->child_errno[priv->favorite_child] == 0)) {
-
- gf_log (this->name, GF_LOG_DEBUG,
- "Picking favorite child %s as authentic source to "
- "resolve conflicting data of %s",
- priv->children[priv->favorite_child]->name,
- local->loc.path);
-
- sh->sources[priv->favorite_child] = 1;
-
- nsources = afr_sh_source_count (sh->sources,
- priv->child_count);
- }
-
- if (nsources == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to self-heal contents of '%s' (possible "
- "split-brain). Please delete the file from all but "
- "the preferred subvolume.", local->loc.path);
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ unsigned char *larger_sinks = 0;
+ int i = 0;
- local->govinda_gOvinda = 1;
- afr_sh_data_fail (frame, this);
- return 0;
- }
+ local = frame->local;
+ priv = this->private;
- local->govinda_gOvinda = 0;
- ret = afr_sh_inode_set_read_ctx (sh, this);
- if (ret) {
- gf_log (this->name, GF_LOG_DEBUG,
- "No active sources found.");
+ larger_sinks = alloca0 (priv->child_count);
+ for (i = 0; i < priv->child_count; i++) {
+ if (healed_sinks[i] && replies[i].poststat.ia_size > size)
+ larger_sinks[i] = 1;
+ }
- afr_sh_data_fail (frame, this);
- return 0;
- }
+ AFR_ONLIST (larger_sinks, frame, attr_cbk, ftruncate, fd, size, NULL);
- if (sh->sync_done) {
- afr_sh_data_setattr (frame, this);
- } else {
- afr_sh_data_fix (frame, this);
- }
- return 0;
+ for (i = 0; i < priv->child_count; i++)
+ if (healed_sinks[i] && local->replies[i].op_ret == -1)
+ /* truncate() failed. Do NOT consider this server
+ as successfully healed. Mark it so.
+ */
+ healed_sinks[i] = 0;
+ return 0;
}
-int
-afr_lookup_select_read_child_by_txn_type (xlator_t *this, afr_local_t *local,
- dict_t **xattr,
- afr_transaction_type txn_type)
-{
- afr_private_t *priv = NULL;
- int read_child = -1;
- int32_t **pending_matrix = NULL;
- int32_t *sources = NULL;
- int32_t *success_children = NULL;
- struct iatt *bufs = NULL;
- int32_t nsources = 0;
- int32_t prev_read_child = -1;
- int32_t config_read_child = -1;
- int32_t subvol_status = 0;
-
- priv = this->private;
- bufs = local->cont.lookup.bufs;
- success_children = local->cont.lookup.success_children;
-
- pending_matrix = afr_matrix_create (priv->child_count,
- priv->child_count);
- if (NULL == pending_matrix)
- goto out;
-
- sources = local->cont.lookup.sources;
- memset (sources, 0, sizeof (*sources) * priv->child_count);
-
- nsources = afr_build_sources (this, xattr, bufs, pending_matrix,
- sources, success_children, txn_type,
- &subvol_status, _gf_false);
- if (subvol_status & SPLIT_BRAIN) {
- gf_log (this->name, GF_LOG_WARNING, "%s: Possible split-brain",
- local->loc.path);
- switch (txn_type) {
- case AFR_DATA_TRANSACTION:
- afr_set_split_brain (this,
- local->cont.lookup.inode,
- _gf_true);
- nsources = 1;
- sources[success_children[0]] = 1;
- break;
- case AFR_ENTRY_TRANSACTION:
- read_child = afr_get_no_xattr_dir_read_child (this,
- success_children,
- bufs);
- sources[read_child] = 1;
- nsources = 1;
- break;
- default:
- break;
- }
- }
- if (nsources < 0)
- goto out;
-
- prev_read_child = local->read_child_index;
- config_read_child = priv->read_child;
- read_child = afr_select_read_child_from_policy (success_children,
- priv->child_count,
- prev_read_child,
- config_read_child,
- sources);
-out:
- afr_matrix_cleanup (pending_matrix, priv->child_count);
- gf_log (this->name, GF_LOG_DEBUG, "returning read_child: %d",
- read_child);
- return read_child;
+/*
+ * If by chance there are multiple sources with differing sizes, select
+ * the largest file as the source.
+ *
+ * This can only happen if data was directly modified in the backend.
+ */
+static int
+__afr_selfheal_data_finalize_source (xlator_t *this, unsigned char *sources,
+ unsigned char *sinks,
+ unsigned char *healed_sinks,
+ unsigned char *locked_on,
+ struct afr_reply *replies)
+{
+ int i = 0;
+ afr_private_t *priv = NULL;
+ uint64_t size = 0;
+ int source = -1;
+ int locked_count = 0;
+ int sources_count = 0;
+ int healed_sinks_count = 0;
+
+ priv = this->private;
+
+ locked_count = AFR_COUNT (locked_on, priv->child_count);
+ sources_count = AFR_COUNT (sources, priv->child_count);
+ healed_sinks_count = AFR_COUNT (healed_sinks, priv->child_count);
+
+ if (locked_count == healed_sinks_count || !sources_count) {
+ /* split brain */
+ return -EIO;
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!sources[i])
+ continue;
+ if (size <= replies[i].poststat.ia_size) {
+ size = replies[i].poststat.ia_size;
+ source = i;
+ }
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!sources[i])
+ continue;
+ if (replies[i].poststat.ia_size < size) {
+ sources[i] = 0;
+ sinks[i] = 1;
+ }
+ }
+
+ return source;
}
-int
-afr_sh_data_special_file_fix (call_frame_t *frame, xlator_t *this)
+/*
+ * __afr_selfheal_data_prepare:
+ *
+ * This function inspects the on-disk xattrs and determines which subvols
+ * are sources and sinks.
+ *
+ * The return value is the index of the subvolume to be used as the source
+ * for self-healing, or -1 if no healing is necessary/split brain.
+ */
+static int
+__afr_selfheal_data_prepare (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ unsigned char *locked_on, unsigned char *sources,
+ unsigned char *sinks, unsigned char *healed_sinks,
+ struct afr_reply *replies)
{
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
- int i = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- for (i = 0; i < priv->child_count ; i++)
- if (1 == local->child_up[i])
- sh->success[i] = 1;
+ int ret = -1;
+ int source = -1;
+ afr_private_t *priv = NULL;
+ int i = 0;
- afr_sh_data_erase_pending (frame, this);
+ priv = this->private;
- return 0;
-}
+ ret = afr_selfheal_unlocked_discover (frame, fd->inode, fd->inode->gfid,
+ replies);
+ if (ret)
+ return ret;
-int
-afr_sh_data_fstat_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- struct iatt *buf, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int call_count = -1;
- int child_index = (long) cookie;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret != -1) {
- gf_log (this->name, GF_LOG_TRACE,
- "fstat of %s on %s succeeded",
- local->loc.path,
- priv->children[child_index]->name);
-
- sh->buf[child_index] = *buf;
- sh->success_children[sh->success_count] = child_index;
- sh->success_count++;
- } else {
- gf_log (this->name, GF_LOG_ERROR, "%s: fstat failed "
- "on %s, reason %s", local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- sh->child_errno[child_index] = op_errno;
- }
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- /* Previous versions of glusterfs might have set
- * the pending data xattrs which need to be erased
- */
- if (!afr_sh_data_proceed (sh->success_count)) {
- gf_log (this->name, GF_LOG_ERROR, "inspecting metadata "
- "succeeded on < %d children, aborting "
- "self-heal for %s", AFR_SH_MIN_PARTICIPANTS,
- local->loc.path);
- afr_sh_data_fail (frame, this);
- goto out;
- }
- if (IA_ISREG (sh->type))
- afr_sh_data_fxattrop_fstat_done (frame, this);
- else
- afr_sh_data_special_file_fix (frame, this);
- }
-out:
- return 0;
-}
+ ret = afr_selfheal_find_direction (frame, this, replies,
+ AFR_DATA_TRANSACTION,
+ locked_on, sources, sinks);
+ if (ret)
+ return ret;
+ source = __afr_selfheal_data_finalize_source (this, sources, sinks,
+ healed_sinks, locked_on,
+ replies);
+ if (source < 0)
+ return -EIO;
-int
-afr_sh_data_fstat (call_frame_t *frame, xlator_t *this)
-{
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int i = 0;
- int child = 0;
- int32_t *fstat_children = NULL;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- fstat_children = memdup (sh->success_children,
- sizeof (*fstat_children) * priv->child_count);
- if (!fstat_children) {
- afr_sh_data_fail (frame, this);
- goto out;
- }
- call_count = sh->success_count;
- local->call_count = call_count;
-
- memset (sh->buf, 0, sizeof (*sh->buf) * priv->child_count);
- afr_reset_children (sh->success_children, priv->child_count);
- sh->success_count = 0;
- for (i = 0; i < priv->child_count; i++) {
- child = fstat_children[i];
- if (child == -1)
- break;
- STACK_WIND_COOKIE (frame, afr_sh_data_fstat_cbk,
- (void *) (long) child,
- priv->children[child],
- priv->children[child]->fops->fstat,
- sh->healing_fd, NULL);
- --call_count;
- }
- GF_ASSERT (!call_count);
-out:
- if (fstat_children)
- GF_FREE (fstat_children);
- return 0;
-}
+ for (i = 0; i < priv->child_count; i++)
+ /* Initialize the healed_sinks[] array optimistically to
+ the intersection of to-be-healed (i.e sinks[]) and
+ the list of servers which are up (i.e locked_on[]).
-void
-afr_sh_common_fxattrop_resp_handler (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret,
- int32_t op_errno, dict_t *xattr)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int child_index = (long) cookie;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- LOCK (&frame->lock);
- {
- if (op_ret != -1) {
- gf_log (this->name, GF_LOG_TRACE,
- "fxattrop of %s on %s succeeded",
- local->loc.path,
- priv->children[child_index]->name);
-
- sh->xattr[child_index] = dict_ref (xattr);
- sh->success_children[sh->success_count] = child_index;
- sh->success_count++;
- } else {
- gf_log (this->name, GF_LOG_ERROR, "fxattrop of %s "
- "failed on %s, reason %s", local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- sh->child_errno[child_index] = op_errno;
- }
- }
- UNLOCK (&frame->lock);
-}
+ As we encounter failures in the healing process, we
+ will unmark the respective servers in the healed_sinks[]
+ array.
+ */
+ healed_sinks[i] = sinks[i] && locked_on[i];
-int
-afr_sh_data_fxattrop_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- dict_t *xattr, dict_t *xdata)
-{
- int call_count = -1;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- afr_sh_common_fxattrop_resp_handler (frame, cookie, this, op_ret,
- op_errno, xattr);
-
- call_count = afr_frame_return (frame);
- if (call_count == 0) {
- if (!afr_sh_data_proceed (sh->success_count)) {
- gf_log (this->name, GF_LOG_ERROR, "%s, inspecting "
- "change log succeeded on < %d children",
- local->loc.path, AFR_SH_MIN_PARTICIPANTS);
- afr_sh_data_fail (frame, this);
- goto out;
- }
- afr_sh_data_fstat (frame, this);
- }
-out:
- return 0;
+ return source;
}
-int
-afr_sh_data_fxattrop (call_frame_t *frame, xlator_t *this)
-{
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- dict_t *xattr_req = NULL;
- int32_t *zero_pending = NULL;
- int call_count = 0;
- int i = 0;
- int ret = 0;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- call_count = afr_up_children_count (local->child_up,
- priv->child_count);
-
- local->call_count = call_count;
-
- xattr_req = dict_new();
- if (!xattr_req) {
- ret = -1;
- goto out;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- zero_pending = GF_CALLOC (3, sizeof (*zero_pending),
- gf_afr_mt_int32_t);
- if (!zero_pending) {
- ret = -1;
- goto out;
- }
- ret = dict_set_dynptr (xattr_req, priv->pending_key[i],
- zero_pending,
- 3 * sizeof (*zero_pending));
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "Unable to set dict value");
- goto out;
- } else {
- zero_pending = NULL;
- }
- }
-
- afr_reset_xattr (sh->xattr, priv->child_count);
- afr_reset_children (sh->success_children, priv->child_count);
- memset (sh->child_errno, 0,
- sizeof (*sh->child_errno) * priv->child_count);
- sh->success_count = 0;
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i]) {
- STACK_WIND_COOKIE (frame, afr_sh_data_fxattrop_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fxattrop,
- sh->healing_fd, GF_XATTROP_ADD_ARRAY,
- xattr_req, NULL);
-
- if (!--call_count)
- break;
- }
- }
-
+static int
+__afr_selfheal_data (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ unsigned char *locked_on)
+{
+ afr_private_t *priv = NULL;
+ int ret = -1;
+ unsigned char *sources = NULL;
+ unsigned char *sinks = NULL;
+ unsigned char *data_lock = NULL;
+ unsigned char *healed_sinks = NULL;
+ struct afr_reply *locked_replies = NULL;
+ int source = -1;
+ gf_boolean_t compat = _gf_false;
+ unsigned char *compat_lock = NULL;
+
+ priv = this->private;
+
+ sources = alloca0 (priv->child_count);
+ sinks = alloca0 (priv->child_count);
+ healed_sinks = alloca0 (priv->child_count);
+ data_lock = alloca0 (priv->child_count);
+ compat_lock = alloca0 (priv->child_count);
+
+ locked_replies = alloca0 (sizeof (*locked_replies) * priv->child_count);
+
+ ret = afr_selfheal_inodelk (frame, this, fd->inode, this->name, 0, 0,
+ data_lock);
+ {
+ if (ret < 2) {
+ ret = -ENOTCONN;
+ goto unlock;
+ }
+
+ ret = __afr_selfheal_data_prepare (frame, this, fd, data_lock,
+ sources, sinks, healed_sinks,
+ locked_replies);
+ if (ret < 0)
+ goto unlock;
+
+ source = ret;
+
+ ret = __afr_selfheal_truncate_sinks (frame, this, fd, healed_sinks,
+ locked_replies,
+ locked_replies[source].poststat.ia_size);
+ if (ret < 0)
+ goto unlock;
+
+ ret = 0;
+
+ /* Locking from (LLONG_MAX - 2) to (LLONG_MAX - 1) is for
+ compatibility with older self-heal clients which do not
+ hold a lock in the @priv->sh_domain domain to guard
+ against concurrent ongoing self-heals
+ */
+ afr_selfheal_inodelk (frame, this, fd->inode, this->name,
+ LLONG_MAX - 2, 1, compat_lock);
+ compat = _gf_true;
+ }
+unlock:
+ afr_selfheal_uninodelk (frame, this, fd->inode, this->name, 0, 0,
+ data_lock);
+ if (ret < 0)
+ goto out;
+
+ ret = afr_selfheal_data_do (frame, this, fd, source, healed_sinks,
+ locked_replies);
+ if (ret)
+ goto out;
+
+ ret = afr_selfheal_undo_pending (frame, this, fd->inode, sources, sinks,
+ healed_sinks, AFR_DATA_TRANSACTION,
+ locked_replies, data_lock);
out:
- if (xattr_req)
- dict_unref (xattr_req);
-
- if (ret) {
- if (zero_pending)
- GF_FREE (zero_pending);
- afr_sh_data_fail (frame, this);
- }
-
- return 0;
-}
-
-int
-afr_sh_data_big_lock_success (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- sh->data_lock_held = _gf_true;
- afr_sh_data_fxattrop (frame, this);
- return 0;
+ if (compat)
+ afr_selfheal_uninodelk (frame, this, fd->inode, this->name,
+ LLONG_MAX - 2, 1, compat_lock);
+ return ret;
}
-int
-afr_sh_data_post_blocking_inodelk_cbk (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- sh = &local->self_heal;
-
- if (int_lock->lock_op_ret < 0) {
- gf_log (this->name, GF_LOG_ERROR, "Blocking data inodelks "
- "failed for %s. by %s",
- local->loc.path, lkowner_utoa (&frame->root->lk_owner));
-
- sh->data_lock_failure_handler (frame, this);
- } else {
- gf_log (this->name, GF_LOG_DEBUG, "Blocking data inodelks "
- "done for %s by %s. Proceding to self-heal",
- local->loc.path, lkowner_utoa (&frame->root->lk_owner));
-
- sh->data_lock_success_handler (frame, this);
- }
-
- return 0;
-}
-
-int
-afr_sh_data_post_nonblocking_inodelk_cbk (call_frame_t *frame, xlator_t *this)
-{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- int_lock = &local->internal_lock;
- sh = &local->self_heal;
-
- if (int_lock->lock_op_ret < 0) {
- gf_log (this->name, GF_LOG_DEBUG, "Non Blocking data inodelks "
- "failed for %s. by %s",
- local->loc.path, lkowner_utoa (&frame->root->lk_owner));
-
- int_lock->lock_cbk = afr_sh_data_post_blocking_inodelk_cbk;
- afr_blocking_lock (frame, this);
- } else {
-
- gf_log (this->name, GF_LOG_DEBUG, "Non Blocking data inodelks "
- "done for %s by %s. Proceeding to self-heal",
- local->loc.path, lkowner_utoa (&frame->root->lk_owner));
- sh->data_lock_success_handler (frame, this);
- }
-
- return 0;
-}
-
-int
-afr_sh_data_lock_rec (call_frame_t *frame, xlator_t *this, off_t start, off_t len)
+static fd_t *
+afr_selfheal_data_open (xlator_t *this, inode_t *inode)
{
- afr_internal_lock_t *int_lock = NULL;
- afr_local_t *local = NULL;
+ loc_t loc = {0,};
+ int ret = 0;
+ fd_t *fd = NULL;
- local = frame->local;
- int_lock = &local->internal_lock;
+ fd = fd_create (inode, 0);
+ if (!fd)
+ return NULL;
- int_lock->transaction_lk_type = AFR_SELFHEAL_LK;
- int_lock->selfheal_lk_type = AFR_DATA_SELF_HEAL_LK;
+ loc.inode = inode_ref (inode);
+ uuid_copy (loc.gfid, inode->gfid);
- afr_set_lock_number (frame, this);
+ ret = syncop_open (this, &loc, O_RDWR|O_LARGEFILE, fd);
+ if (ret) {
+ fd_unref (fd);
+ fd = NULL;
+ } else {
+ fd_bind (fd);
+ }
- int_lock->lk_flock.l_start = start;
- int_lock->lk_flock.l_len = len;
- int_lock->lk_flock.l_type = F_WRLCK;
- int_lock->lock_cbk = afr_sh_data_post_nonblocking_inodelk_cbk;
+ loc_wipe (&loc);
- afr_nonblocking_inodelk (frame, this);
-
- return 0;
-}
-
-int
-afr_post_sh_big_lock_success (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- GF_ASSERT (sh->old_loop_frame);
- sh_loop_finish (sh->old_loop_frame, this);
- sh->old_loop_frame = NULL;
- sh->data_lock_held = _gf_true;
- sh->sync_done = _gf_true;
- afr_sh_data_fxattrop (frame, this);
- return 0;
+ return fd;
}
-int
-afr_post_sh_big_lock_failure (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- GF_ASSERT (sh->old_loop_frame);
- sh_loop_finish (sh->old_loop_frame, this);
- sh->old_loop_frame = NULL;
- afr_sh_set_timestamps (frame, this);
- return 0;
-}
-
-
-int
-afr_sh_data_lock (call_frame_t *frame, xlator_t *this,
- off_t start, off_t len,
- afr_lock_cbk_t success_handler,
- afr_lock_cbk_t failure_handler)
-{
- afr_local_t * local = NULL;
- afr_self_heal_t * sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- sh->data_lock_success_handler = success_handler;
- sh->data_lock_failure_handler = failure_handler;
- return afr_sh_data_lock_rec (frame, this, start, len);
-}
int
-afr_sh_data_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, fd_t *fd, dict_t *xdata)
+afr_selfheal_data (call_frame_t *frame, xlator_t *this, inode_t *inode)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int child_index = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- child_index = (long) cookie;
-
- /* TODO: some of the open's might fail.
- In that case, modify cleanup fn to send flush on those
- fd's which are already open */
-
- LOCK (&frame->lock);
- {
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "open of %s failed on child %s (%s)",
- local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- sh->op_failed = 1;
- } else {
- gf_log (this->name, GF_LOG_TRACE,
- "open of %s succeeded on child %s",
- local->loc.path,
- priv->children[child_index]->name);
- }
- }
- UNLOCK (&frame->lock);
+ afr_private_t *priv = NULL;
+ unsigned char *locked_on = NULL;
+ int ret = 0;
+ fd_t *fd = NULL;
- call_count = afr_frame_return (frame);
+ priv = this->private;
- if (call_count == 0) {
- if (sh->op_failed) {
- afr_sh_data_fail (frame, this);
- return 0;
- }
+ fd = afr_selfheal_data_open (this, inode);
+ if (!fd)
+ return -EIO;
- gf_log (this->name, GF_LOG_TRACE,
- "fd for %s opened, commencing sync",
- local->loc.path);
+ locked_on = alloca0 (priv->child_count);
- afr_sh_data_lock (frame, this, 0, 0,
- afr_sh_data_big_lock_success,
- afr_sh_data_fail);
- }
+ ret = afr_selfheal_tryinodelk (frame, this, inode, priv->sh_domain, 0, 0,
+ locked_on);
+ {
+ if (ret < 2) {
+ /* Either less than two subvols available, or another
+ selfheal (from another server) is in progress. Skip
+ for now in any case there isn't anything to do.
+ */
+ ret = -ENOTCONN;
+ goto unlock;
+ }
- return 0;
-}
+ ret = __afr_selfheal_data (frame, this, fd, locked_on);
+ }
+unlock:
+ afr_selfheal_uninodelk (frame, this, inode, priv->sh_domain, 0, 0, locked_on);
+ if (fd)
+ fd_unref (fd);
-int
-afr_sh_data_open (call_frame_t *frame, xlator_t *this)
-{
- int i = 0;
- int call_count = 0;
- fd_t *fd = NULL;
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- call_count = afr_up_children_count (local->child_up, priv->child_count);
- local->call_count = call_count;
-
- fd = fd_create (local->loc.inode, frame->root->pid);
- sh->healing_fd = fd;
-
- /* open sinks */
- for (i = 0; i < priv->child_count; i++) {
- if(!local->child_up[i])
- continue;
-
- STACK_WIND_COOKIE (frame, afr_sh_data_open_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->open,
- &local->loc,
- O_RDWR|O_LARGEFILE, fd, NULL);
-
- if (!--call_count)
- break;
- }
-
- return 0;
-}
-
-
-int
-afr_self_heal_data (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = this->private;
-
- local = frame->local;
- sh = &local->self_heal;
-
- if (sh->do_data_self_heal &&
- afr_data_self_heal_enabled (priv->data_self_heal)) {
- afr_sh_data_open (frame, this);
- } else {
- gf_log (this->name, GF_LOG_TRACE,
- "not doing data self heal on %s",
- local->loc.path);
- afr_sh_data_done (frame, this);
- }
-
- return 0;
+ return ret;
}
diff --git a/xlators/cluster/afr/src/afr-self-heal-entry.c b/xlators/cluster/afr/src/afr-self-heal-entry.c
index 9fa128e42..9605d69f4 100644
--- a/xlators/cluster/afr/src/afr-self-heal-entry.c
+++ b/xlators/cluster/afr/src/afr-self-heal-entry.c
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
+ Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
@@ -8,2395 +8,624 @@
cases as published by the Free Software Foundation.
*/
-#include <libgen.h>
-#include <unistd.h>
-#include <fnmatch.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include <signal.h>
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
-#include "glusterfs.h"
-#include "inode.h"
#include "afr.h"
-#include "dict.h"
-#include "xlator.h"
-#include "hashfn.h"
-#include "logging.h"
-#include "stack.h"
-#include "list.h"
-#include "call-stub.h"
-#include "defaults.h"
-#include "common-utils.h"
-#include "compat-errno.h"
-#include "compat.h"
+#include "afr-self-heal.h"
#include "byte-order.h"
-
#include "afr-transaction.h"
-#include "afr-self-heal.h"
-#include "afr-self-heal-common.h"
-
-#define AFR_INIT_SH_FRAME_VALS(_frame, _local, _sh, _sh_frame, _sh_local, _sh_sh)\
- do {\
- _local = _frame->local;\
- _sh = &_local->self_heal;\
- _sh_frame = _sh->sh_frame;\
- _sh_local = _sh_frame->local;\
- _sh_sh = &_sh_local->self_heal;\
- } while (0);
-
-int
-afr_sh_entry_impunge_create_file (call_frame_t *impunge_frame, xlator_t *this,
- int child_index);
-int
-afr_sh_entry_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
-
- sh->completion_cbk (frame, this);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_unlock (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_internal_lock_t *int_lock = NULL;
-
- local = frame->local;
- int_lock = &local->internal_lock;
-
- int_lock->lock_cbk = afr_sh_entry_done;
- afr_unlock (frame, this);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_finish (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- gf_log (this->name, GF_LOG_TRACE,
- "finishing entry selfheal of %s", local->loc.path);
-
- afr_sh_entry_unlock (frame, this);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_erase_pending_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret,
- int32_t op_errno, dict_t *xattr, dict_t *xdata)
-{
- long i = 0;
- int call_count = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_local_t *orig_local = NULL;
- call_frame_t *orig_frame = NULL;
- afr_private_t *priv = NULL;
- int32_t read_child = -1;
-
- local = frame->local;
- priv = this->private;
- sh = &local->self_heal;
- i = (long)cookie;
-
-
- afr_children_add_child (sh->fresh_children, i, priv->child_count);
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "%s: failed to erase pending xattrs on %s (%s)",
- local->loc.path, priv->children[i]->name,
- strerror (op_errno));
- }
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0) {
- if (sh->source == -1) {
- //this happens if the forced merge option is set
- read_child = sh->fresh_children[0];
- } else {
- read_child = sh->source;
- }
- afr_inode_set_read_ctx (this, sh->inode, read_child,
- sh->fresh_children);
- orig_frame = sh->orig_frame;
- orig_local = orig_frame->local;
-
- if (sh->source != -1) {
- orig_local->cont.lookup.buf.ia_nlink = sh->buf[sh->source].ia_nlink;
- }
-
- afr_sh_entry_finish (frame, this);
- }
-
- return 0;
-}
-
-
-int
-afr_sh_entry_erase_pending (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int i = 0;
- dict_t **erase_xattr = NULL;
- int need_unwind = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- if (sh->entries_skipped) {
- need_unwind = 1;
- sh->op_failed = _gf_true;
- goto out;
- }
- afr_sh_pending_to_delta (priv, sh->xattr, sh->delta_matrix, sh->success,
- priv->child_count, AFR_ENTRY_TRANSACTION);
-
- erase_xattr = GF_CALLOC (sizeof (*erase_xattr), priv->child_count,
- gf_afr_mt_dict_t);
-
- for (i = 0; i < priv->child_count; i++) {
- if (sh->xattr[i]) {
- call_count++;
-
- erase_xattr[i] = get_new_dict();
- dict_ref (erase_xattr[i]);
- }
- }
-
- if (call_count == 0)
- need_unwind = 1;
-
- afr_sh_delta_to_xattr (priv, sh->delta_matrix, erase_xattr,
- priv->child_count, AFR_ENTRY_TRANSACTION);
-
- local->call_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (!erase_xattr[i])
- continue;
-
- gf_log (this->name, GF_LOG_TRACE,
- "erasing pending flags from %s on %s",
- local->loc.path, priv->children[i]->name);
-
- STACK_WIND_COOKIE (frame, afr_sh_entry_erase_pending_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->xattrop,
- &local->loc,
- GF_XATTROP_ADD_ARRAY, erase_xattr[i],
- NULL);
- if (!--call_count)
- break;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (erase_xattr[i]) {
- dict_unref (erase_xattr[i]);
- }
- }
- GF_FREE (erase_xattr);
-
-out:
- if (need_unwind)
- afr_sh_entry_finish (frame, this);
-
- return 0;
-}
-
static int
-next_active_source (call_frame_t *frame, xlator_t *this,
- int current_active_source)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int source = -1;
- int next_active_source = -1;
- int i = 0;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- source = sh->source;
-
- if (source != -1) {
- if (current_active_source != source)
- next_active_source = source;
- goto out;
- }
-
- /*
- the next active sink becomes the source for the
- 'conservative decision' of merging all entries
- */
-
- for (i = 0; i < priv->child_count; i++) {
- if ((sh->sources[i] == 0)
- && (local->child_up[i] == 1)
- && (i > current_active_source)) {
-
- next_active_source = i;
- break;
- }
- }
-out:
- return next_active_source;
-}
-
-
-
-static int
-next_active_sink (call_frame_t *frame, xlator_t *this,
- int current_active_sink)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int next_active_sink = -1;
- int i = 0;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- /*
- the next active sink becomes the source for the
- 'conservative decision' of merging all entries
- */
-
- for (i = 0; i < priv->child_count; i++) {
- if ((sh->sources[i] == 0)
- && (local->child_up[i] == 1)
- && (i > current_active_sink)) {
-
- next_active_sink = i;
- break;
- }
- }
-
- return next_active_sink;
-}
-
-int
-afr_sh_entry_impunge_all (call_frame_t *frame, xlator_t *this);
-
-int
-afr_sh_entry_impunge_subvol (call_frame_t *frame, xlator_t *this);
-
-int
-afr_sh_entry_expunge_all (call_frame_t *frame, xlator_t *this);
-
-int
-afr_sh_entry_expunge_subvol (call_frame_t *frame, xlator_t *this,
- int active_src);
-
-int
-afr_sh_entry_expunge_entry_done (call_frame_t *frame, xlator_t *this,
- int active_src, int32_t op_ret,
- int32_t op_errno)
-{
- int call_count = 0;
-
- call_count = afr_frame_return (frame);
-
- if (call_count == 0)
- afr_sh_entry_expunge_subvol (frame, this, active_src);
-
- return 0;
-}
-
-int
-afr_sh_entry_expunge_parent_setattr_cbk (call_frame_t *expunge_frame,
- void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- struct iatt *preop, struct iatt *postop,
- dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- call_frame_t *frame = NULL;
- int active_src = (long) cookie;
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
- expunge_sh = &expunge_local->self_heal;
- frame = expunge_sh->sh_frame;
- local = frame->local;
- sh = &local->self_heal;
-
- if (op_ret != 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "setattr on parent directory of %s on subvolume %s failed: %s",
- expunge_local->loc.path,
- priv->children[active_src]->name, strerror (op_errno));
- }
-
- AFR_STACK_DESTROY (expunge_frame);
- sh->expunge_done (frame, this, active_src, op_ret, op_errno);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_remove_cbk (call_frame_t *expunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- int active_src = 0;
- int32_t valid = 0;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
- expunge_sh = &expunge_local->self_heal;
-
- active_src = (long) cookie;
-
- if (op_ret == 0) {
- gf_log (this->name, GF_LOG_DEBUG,
- "removed %s on %s",
- expunge_local->loc.path,
- priv->children[active_src]->name);
- } else {
- gf_log (this->name, GF_LOG_INFO,
- "removing %s on %s failed (%s)",
- expunge_local->loc.path,
- priv->children[active_src]->name,
- strerror (op_errno));
- }
-
- valid = GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME;
-
- STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_parent_setattr_cbk,
- (void *) (long) active_src,
- priv->children[active_src],
- priv->children[active_src]->fops->setattr,
- &expunge_sh->parent_loc,
- &expunge_sh->parentbuf,
- valid, NULL);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_unlink (call_frame_t *expunge_frame, xlator_t *this,
- int active_src)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
-
- gf_log (this->name, GF_LOG_TRACE,
- "expunging file %s on %s",
- expunge_local->loc.path, priv->children[active_src]->name);
-
- STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_remove_cbk,
- (void *) (long) active_src,
- priv->children[active_src],
- priv->children[active_src]->fops->unlink,
- &expunge_local->loc, 0, NULL);
-
- return 0;
-}
-
-
-
-int
-afr_sh_entry_expunge_rmdir (call_frame_t *expunge_frame, xlator_t *this,
- int active_src)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "expunging directory %s on %s",
- expunge_local->loc.path, priv->children[active_src]->name);
-
- STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_remove_cbk,
- (void *) (long) active_src,
- priv->children[active_src],
- priv->children[active_src]->fops->rmdir,
- &expunge_local->loc, 1, NULL);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_remove (call_frame_t *expunge_frame, xlator_t *this,
- int active_src, struct iatt *buf,
- struct iatt *parentbuf)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- call_frame_t *frame = NULL;
- int type = 0;
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
- loc_t *loc = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
- expunge_sh = &expunge_local->self_heal;
- frame = expunge_sh->sh_frame;
- local = frame->local;
- sh = &local->self_heal;
- loc = &expunge_local->loc;
-
- type = buf->ia_type;
- if (loc->parent && uuid_is_null (loc->parent->gfid))
- uuid_copy (loc->pargfid, parentbuf->ia_gfid);
-
- switch (type) {
- case IA_IFSOCK:
- case IA_IFREG:
- case IA_IFBLK:
- case IA_IFCHR:
- case IA_IFIFO:
- case IA_IFLNK:
- afr_sh_entry_expunge_unlink (expunge_frame, this, active_src);
- break;
- case IA_IFDIR:
- afr_sh_entry_expunge_rmdir (expunge_frame, this, active_src);
- break;
- default:
- gf_log (this->name, GF_LOG_ERROR,
- "%s has unknown file type on %s: 0%o",
- expunge_local->loc.path,
- priv->children[active_src]->name, type);
- goto out;
- break;
- }
-
- return 0;
-out:
- AFR_STACK_DESTROY (expunge_frame);
- sh->expunge_done (frame, this, active_src, -1, EINVAL);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_lookup_cbk (call_frame_t *expunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *buf, dict_t *x,
- struct iatt *postparent)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- call_frame_t *frame = NULL;
- int active_src = 0;
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
- expunge_sh = &expunge_local->self_heal;
- frame = expunge_sh->sh_frame;
- active_src = (long) cookie;
- local = frame->local;
- sh = &local->self_heal;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "lookup of %s on %s failed (%s)",
- expunge_local->loc.path,
- priv->children[active_src]->name,
- strerror (op_errno));
- goto out;
- }
-
- afr_sh_entry_expunge_remove (expunge_frame, this, active_src, buf,
- postparent);
-
- return 0;
-out:
- AFR_STACK_DESTROY (expunge_frame);
- sh->expunge_done (frame, this, active_src, op_ret, op_errno);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_purge (call_frame_t *expunge_frame, xlator_t *this,
- int active_src)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
-
- gf_log (this->name, GF_LOG_TRACE,
- "looking up %s on %s",
- expunge_local->loc.path, priv->children[active_src]->name);
-
- STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_lookup_cbk,
- (void *) (long) active_src,
- priv->children[active_src],
- priv->children[active_src]->fops->lookup,
- &expunge_local->loc, NULL);
-
- return 0;
-}
-
-int
-afr_sh_entry_expunge_entry_cbk (call_frame_t *expunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *buf, dict_t *x,
- struct iatt *postparent)
-{
- afr_private_t *priv = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- int source = 0;
- call_frame_t *frame = NULL;
- int active_src = 0;
- int need_expunge = 0;
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
-
- priv = this->private;
- expunge_local = expunge_frame->local;
- expunge_sh = &expunge_local->self_heal;
- frame = expunge_sh->sh_frame;
- active_src = expunge_sh->active_source;
- source = (long) cookie;
- local = frame->local;
- sh = &local->self_heal;
-
- if (op_ret == -1 && op_errno == ENOENT)
- need_expunge = 1;
- else if (op_ret == -1)
- goto out;
-
- if (!uuid_is_null (expunge_sh->entrybuf.ia_gfid) &&
- !uuid_is_null (buf->ia_gfid) &&
- (uuid_compare (expunge_sh->entrybuf.ia_gfid, buf->ia_gfid) != 0)) {
- char uuidbuf1[64];
- char uuidbuf2[64];
- gf_log (this->name, GF_LOG_DEBUG,
- "entry %s found on %s with mismatching gfid (%s/%s)",
- expunge_local->loc.path,
- priv->children[source]->name,
- uuid_utoa_r (expunge_sh->entrybuf.ia_gfid, uuidbuf1),
- uuid_utoa_r (buf->ia_gfid, uuidbuf2));
- need_expunge = 1;
- }
-
- if (need_expunge) {
- gf_log (this->name, GF_LOG_INFO,
- "missing entry %s on %s",
- expunge_local->loc.path,
- priv->children[source]->name);
-
- if (postparent)
- expunge_sh->parentbuf = *postparent;
-
- afr_sh_entry_expunge_purge (expunge_frame, this, active_src);
-
- return 0;
- }
+afr_selfheal_entry_delete (call_frame_t *frame, xlator_t *this, inode_t *dir,
+ const char *name, inode_t *inode, int child,
+ struct afr_reply *replies)
+{
+ afr_private_t *priv = NULL;
+ xlator_t *subvol = NULL;
+ int ret = 0;
+ loc_t loc = {0, };
+ char g[64];
+
+ priv = this->private;
+
+ subvol = priv->children[child];
+
+ loc.parent = inode_ref (dir);
+ uuid_copy (loc.pargfid, dir->gfid);
+ loc.name = name;
+ loc.inode = inode_ref (inode);
+
+ if (replies[child].valid && replies[child].op_ret == 0) {
+ switch (replies[child].poststat.ia_type) {
+ case IA_IFDIR:
+ gf_log (this->name, GF_LOG_WARNING,
+ "expunging dir %s/%s (%s) on %s",
+ uuid_utoa (dir->gfid), name,
+ uuid_utoa_r (replies[child].poststat.ia_gfid, g),
+ subvol->name);
+ ret = syncop_rmdir (subvol, &loc, 1);
+ break;
+ default:
+ gf_log (this->name, GF_LOG_WARNING,
+ "expunging file %s/%s (%s) on %s",
+ uuid_utoa (dir->gfid), name,
+ uuid_utoa_r (replies[child].poststat.ia_gfid, g),
+ subvol->name);
+ ret = syncop_unlink (subvol, &loc);
+ break;
+ }
+ }
+
+ loc_wipe (&loc);
+
+ return ret;
+}
+
+
+int
+afr_selfheal_recreate_entry (call_frame_t *frame, xlator_t *this, int dst,
+ int source, inode_t *dir, const char *name,
+ inode_t *inode, struct afr_reply *replies)
+{
+ int ret = 0;
+ loc_t loc = {0,};
+ loc_t srcloc = {0,};
+ afr_private_t *priv = NULL;
+ dict_t *xdata = NULL;
+ struct iatt *iatt = NULL;
+ char *linkname = NULL;
+ mode_t mode = 0;
+ struct iatt newent = {0,};
+
+ priv = this->private;
+
+ xdata = dict_new();
+ if (!xdata)
+ return -ENOMEM;
+
+ loc.parent = inode_ref (dir);
+ uuid_copy (loc.pargfid, dir->gfid);
+ loc.name = name;
+ loc.inode = inode_ref (inode);
+
+ ret = afr_selfheal_entry_delete (frame, this, dir, name, inode, dst,
+ replies);
+ if (ret)
+ goto out;
+
+ ret = dict_set_static_bin (xdata, "gfid-req",
+ replies[source].poststat.ia_gfid, 16);
+ if (ret)
+ goto out;
+
+ iatt = &replies[source].poststat;
+
+ srcloc.inode = inode_ref (inode);
+ uuid_copy (srcloc.gfid, iatt->ia_gfid);
+
+ mode = st_mode_from_ia (iatt->ia_prot, iatt->ia_type);
+
+ switch (iatt->ia_type) {
+ case IA_IFDIR:
+ ret = syncop_mkdir (priv->children[dst], &loc, mode, xdata, 0);
+ break;
+ case IA_IFLNK:
+ ret = syncop_lookup (priv->children[dst], &srcloc, 0, 0, 0, 0);
+ if (ret == 0) {
+ ret = syncop_link (priv->children[dst], &srcloc, &loc);
+ } else {
+ ret = syncop_readlink (priv->children[source], &srcloc,
+ &linkname, 4096);
+ if (ret <= 0)
+ goto out;
+ ret = syncop_symlink (priv->children[dst], &loc, linkname,
+ xdata, NULL);
+ }
+ break;
+ default:
+ ret = dict_set_int32 (xdata, GLUSTERFS_INTERNAL_FOP_KEY, 1);
+ if (ret)
+ goto out;
+ ret = syncop_mknod (priv->children[dst], &loc, mode,
+ iatt->ia_rdev, xdata, &newent);
+ if (ret == 0 && iatt->ia_size && !newent.ia_size) {
+ /* New entry created. Mark @dst pending on all sources */
+ ret = 1;
+ }
+ break;
+ }
out:
- if (op_ret == 0) {
- gf_log (this->name, GF_LOG_TRACE,
- "%s exists under %s",
- expunge_local->loc.path,
- priv->children[source]->name);
- } else {
- gf_log (this->name, GF_LOG_INFO,
- "looking up %s under %s failed (%s)",
- expunge_local->loc.path,
- priv->children[source]->name,
- strerror (op_errno));
- }
-
- AFR_STACK_DESTROY (expunge_frame);
- sh->expunge_done (frame, this, active_src, op_ret, op_errno);
-
- return 0;
+ if (xdata)
+ dict_unref (xdata);
+ loc_wipe (&loc);
+ loc_wipe (&srcloc);
+ return ret;
}
-int
-afr_sh_entry_expunge_entry (call_frame_t *frame, xlator_t *this,
- gf_dirent_t *entry)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int ret = -1;
- call_frame_t *expunge_frame = NULL;
- afr_local_t *expunge_local = NULL;
- afr_self_heal_t *expunge_sh = NULL;
- int active_src = 0;
- int source = 0;
- int op_errno = 0;
- char *name = NULL;
- int op_ret = -1;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- active_src = sh->active_source;
- source = sh->source;
- sh->expunge_done = afr_sh_entry_expunge_entry_done;
-
- name = entry->d_name;
-
- if ((strcmp (name, ".") == 0)
- || (strcmp (name, "..") == 0)
- || ((strcmp (local->loc.path, "/") == 0)
- && (strcmp (name, GF_REPLICATE_TRASH_DIR) == 0))) {
-
- gf_log (this->name, GF_LOG_TRACE,
- "skipping inspection of %s under %s",
- name, local->loc.path);
- op_ret = 0;
- goto out;
- }
-
- gf_log (this->name, GF_LOG_TRACE,
- "inspecting existence of %s under %s",
- name, local->loc.path);
-
- expunge_frame = copy_frame (frame);
- if (!expunge_frame) {
- op_errno = ENOMEM;
- goto out;
- }
-
- AFR_LOCAL_ALLOC_OR_GOTO (expunge_local, out);
-
- expunge_frame->local = expunge_local;
- expunge_sh = &expunge_local->self_heal;
- expunge_sh->sh_frame = frame;
- expunge_sh->active_source = active_src;
- expunge_sh->entrybuf = entry->d_stat;
- loc_copy (&expunge_sh->parent_loc, &local->loc);
-
- ret = afr_build_child_loc (this, &expunge_local->loc, &local->loc,
- name);
- if (ret != 0) {
- op_errno = EINVAL;
- goto out;
- }
-
- gf_log (this->name, GF_LOG_TRACE,
- "looking up %s on %s", expunge_local->loc.path,
- priv->children[source]->name);
-
- STACK_WIND_COOKIE (expunge_frame,
- afr_sh_entry_expunge_entry_cbk,
- (void *) (long) source,
- priv->children[source],
- priv->children[source]->fops->lookup,
- &expunge_local->loc, NULL);
-
- ret = 0;
-out:
- if (ret == -1)
- sh->expunge_done (frame, this, active_src, op_ret, op_errno);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_readdir_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- gf_dirent_t *entries, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- gf_dirent_t *entry = NULL;
- off_t last_offset = 0;
- int active_src = 0;
- int entry_count = 0;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- active_src = sh->active_source;
-
- if (op_ret <= 0) {
- if (op_ret < 0) {
- gf_log (this->name, GF_LOG_INFO,
- "readdir of %s on subvolume %s failed (%s)",
- local->loc.path,
- priv->children[active_src]->name,
- strerror (op_errno));
- } else {
- gf_log (this->name, GF_LOG_TRACE,
- "readdir of %s on subvolume %s complete",
- local->loc.path,
- priv->children[active_src]->name);
- }
-
- afr_sh_entry_expunge_all (frame, this);
- return 0;
- }
-
- list_for_each_entry (entry, &entries->list, list) {
- last_offset = entry->d_off;
- entry_count++;
- }
-
- gf_log (this->name, GF_LOG_TRACE,
- "readdir'ed %d entries from %s",
- entry_count, priv->children[active_src]->name);
-
- sh->offset = last_offset;
- local->call_count = entry_count;
-
- list_for_each_entry (entry, &entries->list, list) {
- afr_sh_entry_expunge_entry (frame, this, entry);
- }
-
- return 0;
-}
-
-int
-afr_sh_entry_expunge_subvol (call_frame_t *frame, xlator_t *this,
- int active_src)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- STACK_WIND (frame, afr_sh_entry_expunge_readdir_cbk,
- priv->children[active_src],
- priv->children[active_src]->fops->readdirp,
- sh->healing_fd, sh->block_size, sh->offset, NULL);
-
- return 0;
-}
-
-
-int
-afr_sh_entry_expunge_all (call_frame_t *frame, xlator_t *this)
+static int
+afr_selfheal_newentry_mark (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ int source, struct afr_reply *replies,
+ unsigned char *sources, unsigned char *newentry)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- int active_src = -1;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- sh->offset = 0;
-
- if (sh->source == -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no active sources for %s to expunge entries",
- local->loc.path);
- goto out;
- }
-
- active_src = next_active_sink (frame, this, sh->active_source);
- sh->active_source = active_src;
-
- if (sh->op_failed) {
- goto out;
- }
-
- if (active_src == -1) {
- /* completed creating missing files on all subvolumes */
- goto out;
- }
+ int ret = 0;
+ int i = 0;
+ afr_private_t *priv = NULL;
+ dict_t *xattr = NULL;
+ int **changelog = NULL;
+ int idx = 0;
- gf_log (this->name, GF_LOG_TRACE,
- "expunging entries of %s on %s to other sinks",
- local->loc.path, priv->children[active_src]->name);
+ priv = this->private;
- afr_sh_entry_expunge_subvol (frame, this, active_src);
+ idx = afr_index_for_transaction_type (AFR_DATA_TRANSACTION);
- return 0;
-out:
- afr_sh_entry_impunge_all (frame, this);
- return 0;
+ uuid_copy (inode->gfid, replies[source].poststat.ia_gfid);
-}
+ changelog = afr_matrix_create (priv->child_count, AFR_NUM_CHANGE_LOGS);
+ xattr = dict_new();
+ if (!xattr)
+ return -ENOMEM;
-int
-afr_sh_entry_impunge_entry_done (call_frame_t *frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
-{
- int call_count = 0;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- if (op_ret < 0)
- sh->entries_skipped = _gf_true;
- call_count = afr_frame_return (frame);
- if (call_count == 0)
- afr_sh_entry_impunge_subvol (frame, this);
-
- return 0;
-}
+ for (i = 0; i < priv->child_count; i++) {
+ if (!newentry[i])
+ continue;
+ changelog[i][idx] = hton32(1);
+ }
-void
-afr_sh_entry_call_impunge_done (call_frame_t *impunge_frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
-{
- afr_local_t *impunge_local = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- call_frame_t *frame = NULL;
+ afr_set_pending_dict (priv, xattr, changelog);
- AFR_INIT_SH_FRAME_VALS (impunge_frame, impunge_local, impunge_sh,
- frame, local, sh);
+ for (i = 0; i < priv->child_count; i++) {
+ if (!sources[i])
+ continue;
+ afr_selfheal_post_op (frame, this, inode, i, xattr);
+ }
- AFR_STACK_DESTROY (impunge_frame);
- sh->impunge_done (frame, this, op_ret, op_errno);
+ dict_unref (xattr);
+ return ret;
}
-int
-afr_sh_entry_impunge_setattr_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- struct iatt *preop, struct iatt *postop,
- dict_t *xdata)
-{
- int call_count = 0;
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- int child_index = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- child_index = (long) cookie;
-
- if (op_ret == 0) {
- gf_log (this->name, GF_LOG_DEBUG,
- "setattr done for %s on %s",
- impunge_local->loc.path,
- priv->children[child_index]->name);
- } else {
- gf_log (this->name, GF_LOG_INFO,
- "setattr (%s) on %s failed (%s)",
- impunge_local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- }
-
- call_count = afr_frame_return (impunge_frame);
- if (call_count == 0) {
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- 0, op_errno);
- }
-
- return 0;
-}
-int
-afr_sh_entry_impunge_parent_setattr_cbk (call_frame_t *setattr_frame,
- void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- struct iatt *preop, struct iatt *postop,
- dict_t *xdata)
-{
- int call_count = 0;
- afr_local_t *setattr_local = NULL;
-
- setattr_local = setattr_frame->local;
- if (op_ret != 0) {
- gf_log (this->name, GF_LOG_INFO,
- "setattr on parent directory (%s) failed: %s",
- setattr_local->loc.path, strerror (op_errno));
- }
-
- call_count = afr_frame_return (setattr_frame);
- if (call_count == 0)
- AFR_STACK_DESTROY (setattr_frame);
- return 0;
+static int
+__afr_selfheal_heal_dirent (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ char *name, inode_t *inode, int source,
+ unsigned char *sources, unsigned char *healed_sinks,
+ unsigned char *locked_on, struct afr_reply *replies)
+{
+ int ret = 0;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ unsigned char *newentry = NULL;
+
+ priv = this->private;
+ newentry = alloca0 (priv->child_count);
+
+ if (!replies[source].valid)
+ return -EIO;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!healed_sinks[i])
+ continue;
+ if (replies[source].op_ret == -1 &&
+ replies[source].op_errno == ENOENT) {
+ ret = afr_selfheal_entry_delete (frame, this, fd->inode,
+ name, inode, i, replies);
+ } else {
+ if (!uuid_compare (replies[i].poststat.ia_gfid,
+ replies[source].poststat.ia_gfid))
+ continue;
+
+ ret = afr_selfheal_recreate_entry (frame, this, i, source,
+ fd->inode, name, inode,
+ replies);
+ if (ret > 0) {
+ newentry[i] = 1;
+ ret = 0;
+ }
+ }
+ if (ret < 0)
+ break;
+ }
+
+ if (AFR_COUNT (newentry, priv->child_count))
+ afr_selfheal_newentry_mark (frame, this, inode, source, replies,
+ sources, newentry);
+ return ret;
}
-int
-afr_sh_entry_impunge_setattr (call_frame_t *impunge_frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_local_t *setattr_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- call_frame_t *setattr_frame = NULL;
- int32_t valid = 0;
- int32_t op_errno = 0;
- int child_index = 0;
- int call_count = 0;
- int i = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "setting ownership of %s on %s to %d/%d",
- impunge_local->loc.path,
- priv->children[child_index]->name,
- impunge_sh->entrybuf.ia_uid,
- impunge_sh->entrybuf.ia_gid);
-
- setattr_frame = copy_frame (impunge_frame);
- if (!setattr_frame) {
- op_errno = ENOMEM;
- goto out;
- }
- AFR_LOCAL_ALLOC_OR_GOTO (setattr_frame->local, out);
- setattr_local = setattr_frame->local;
- call_count = afr_errno_count (NULL, impunge_sh->child_errno,
- priv->child_count, 0);
- loc_copy (&setattr_local->loc, &impunge_sh->parent_loc);
- impunge_local->call_count = call_count;
- setattr_local->call_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (impunge_sh->child_errno[i])
- continue;
- valid = GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME;
- STACK_WIND_COOKIE (setattr_frame,
- afr_sh_entry_impunge_parent_setattr_cbk,
- (void *) (long) i, priv->children[i],
- priv->children[i]->fops->setattr,
- &setattr_local->loc,
- &impunge_sh->parentbuf, valid, NULL);
-
- valid = GF_SET_ATTR_UID | GF_SET_ATTR_GID |
- GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME;
- STACK_WIND_COOKIE (impunge_frame,
- afr_sh_entry_impunge_setattr_cbk,
- (void *) (long) i, priv->children[i],
- priv->children[i]->fops->setattr,
- &impunge_local->loc,
- &impunge_sh->entrybuf, valid, NULL);
- call_count--;
- }
- GF_ASSERT (!call_count);
- return 0;
-out:
- if (setattr_frame)
- AFR_STACK_DESTROY (setattr_frame);
- afr_sh_entry_call_impunge_done (impunge_frame, this, 0, op_errno);
- return 0;
-}
-int
-afr_sh_entry_impunge_xattrop_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- dict_t *xattr, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- int child_index = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
-
- child_index = (long) cookie;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "%s: failed to perform xattrop on %s (%s)",
- impunge_local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- goto out;
- }
-
- afr_sh_entry_impunge_setattr (impunge_frame, this);
- return 0;
-out:
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- -1, op_errno);
- return 0;
-}
-
-void
-afr_sh_prepare_new_entry_pending_matrix (int32_t **pending,
- int *child_errno,
- struct iatt *buf,
- unsigned int child_count)
+static int
+__afr_selfheal_merge_dirent (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ char *name, inode_t *inode, unsigned char *sources,
+ unsigned char *healed_sinks, unsigned char *locked_on,
+ struct afr_reply *replies)
{
- int midx = 0;
- int idx = 0;
- int i = 0;
-
- midx = afr_index_for_transaction_type (AFR_METADATA_TRANSACTION);
- if (IA_ISDIR (buf->ia_type))
- idx = afr_index_for_transaction_type (AFR_ENTRY_TRANSACTION);
- else if (IA_ISREG (buf->ia_type))
- idx = afr_index_for_transaction_type (AFR_DATA_TRANSACTION);
- else
- idx = -1;
- for (i = 0; i < child_count; i++) {
- if (child_errno[i])
- continue;
- pending[i][midx] = hton32 (1);
- if (idx == -1)
- continue;
- pending[i][idx] = hton32 (1);
- }
-}
+ int ret = 0;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int source = -1;
-int
-afr_sh_entry_impunge_perform_xattrop (call_frame_t *impunge_frame,
- xlator_t *this)
-{
- int active_src = 0;
- dict_t *xattr = NULL;
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int32_t op_errno = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- active_src = impunge_sh->active_source;
-
- afr_sh_prepare_new_entry_pending_matrix (impunge_local->pending,
- impunge_sh->child_errno,
- &impunge_sh->entrybuf,
- priv->child_count);
- xattr = dict_new ();
- if (!xattr) {
- op_errno = ENOMEM;
- goto out;
- }
-
- afr_set_pending_dict (priv, xattr, impunge_local->pending);
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_xattrop_cbk,
- (void *) (long) active_src,
- priv->children[active_src],
- priv->children[active_src]->fops->xattrop,
- &impunge_local->loc, GF_XATTROP_ADD_ARRAY, xattr, NULL);
-
- if (xattr)
- dict_unref (xattr);
- return 0;
-out:
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- -1, op_errno);
- return 0;
-}
+ priv = this->private;
-int
-afr_sh_entry_impunge_newfile_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *stbuf,
- struct iatt *preparent,
- struct iatt *postparent, dict_t *xdata)
-{
- int call_count = 0;
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int child_index = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
-
- child_index = (long) cookie;
-
- if (op_ret == -1) {
- impunge_sh->child_errno[child_index] = op_errno;
- gf_log (this->name, GF_LOG_ERROR,
- "creation of %s on %s failed (%s)",
- impunge_local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- } else {
- impunge_sh->child_errno[child_index] = 0;
- }
-
- call_count = afr_frame_return (impunge_frame);
- if (call_count == 0) {
- if (!afr_errno_count (NULL, impunge_sh->child_errno,
- priv->child_count, 0)) {
- // new_file creation failed every where
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- -1, op_errno);
- goto out;
- }
- afr_sh_entry_impunge_perform_xattrop (impunge_frame, this);
- }
-out:
- return 0;
-}
+ for (i = 0; i < priv->child_count; i++) {
+ if (replies[i].valid && replies[i].op_ret == 0) {
+ source = i;
+ break;
+ }
+ }
-int
-afr_sh_entry_impunge_hardlink_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this, int32_t op_ret,
- int32_t op_errno, inode_t *inode,
- struct iatt *buf, struct iatt *preparent,
- struct iatt *postparent, dict_t *xdata)
-{
- int call_count = 0;
+ if (source == -1) {
+ /* entry got deleted in the mean time? */
+ return 0;
+ }
- call_count = afr_frame_return (impunge_frame);
- if (call_count == 0)
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- op_ret, op_errno);
+ for (i = 0; i < priv->child_count; i++) {
+ if (i == source || !healed_sinks[i])
+ continue;
- return 0;
-}
+ if (replies[i].op_errno != ENOENT)
+ continue;
-int
-afr_sh_entry_impunge_hardlink (call_frame_t *impunge_frame, xlator_t *this,
- int child_index)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- loc_t *loc = NULL;
- struct iatt *buf = NULL;
- loc_t oldloc = {0};
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- loc = &impunge_local->loc;
- buf = &impunge_sh->entrybuf;
-
- oldloc.inode = inode_ref (loc->inode);
- uuid_copy (oldloc.gfid, buf->ia_gfid);
- gf_log (this->name, GF_LOG_DEBUG, "linking missing file %s on %s",
- loc->path, priv->children[child_index]->name);
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_hardlink_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->link,
- &oldloc, loc, NULL);
- loc_wipe (&oldloc);
-
- return 0;
-}
+ ret = afr_selfheal_recreate_entry (frame, this, i, source,
+ fd->inode, name, inode,
+ replies);
+ }
-int
-afr_sh_nameless_lookup_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno, inode_t *inode,
- struct iatt *buf, dict_t *xattr,
- struct iatt *postparent)
-{
- if (op_ret < 0) {
- afr_sh_entry_impunge_create_file (impunge_frame, this,
- (long)cookie);
- } else {
- afr_sh_entry_impunge_hardlink (impunge_frame, this,
- (long)cookie);
- }
- return 0;
+ return ret;
}
-int
-afr_sh_entry_impunge_check_hardlink (call_frame_t *impunge_frame,
- xlator_t *this,
- int child_index, struct iatt *stbuf)
-{
- afr_private_t *priv = NULL;
- call_frame_t *frame = NULL;
- afr_local_t *impunge_local = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- afr_self_heal_t *sh = NULL;
- loc_t *loc = NULL;
- dict_t *xattr_req = NULL;
- loc_t oldloc = {0};
- int ret = -1;
-
- priv = this->private;
- AFR_INIT_SH_FRAME_VALS (impunge_frame, impunge_local, impunge_sh,
- frame, local, sh);
- loc = &impunge_local->loc;
-
- xattr_req = dict_new ();
- if (!xattr_req)
- goto out;
- oldloc.inode = inode_ref (loc->inode);
- uuid_copy (oldloc.gfid, stbuf->ia_gfid);
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_nameless_lookup_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->lookup,
- &oldloc, xattr_req);
- ret = 0;
-out:
- if (xattr_req)
- dict_unref (xattr_req);
- loc_wipe (&oldloc);
- if (ret)
- sh->impunge_done (frame, this, -1, ENOMEM);
- return 0;
-}
-int
-afr_sh_entry_impunge_mknod (call_frame_t *impunge_frame, xlator_t *this,
- int child_index, struct iatt *stbuf)
+static int
+__afr_selfheal_entry_dirent (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ char *name, inode_t *inode, int source,
+ unsigned char *sources, unsigned char *healed_sinks,
+ unsigned char *locked_on, struct afr_reply *replies)
{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- dict_t *dict = NULL;
- int ret = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "creating missing file %s on %s",
- impunge_local->loc.path,
- priv->children[child_index]->name);
-
- dict = dict_new ();
- if (!dict)
- gf_log (this->name, GF_LOG_ERROR, "Out of memory");
-
- GF_ASSERT (!uuid_is_null (stbuf->ia_gfid));
- ret = afr_set_dict_gfid (dict, stbuf->ia_gfid);
- if (ret)
- gf_log (this->name, GF_LOG_INFO, "%s: gfid set failed",
- impunge_local->loc.path);
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_newfile_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->mknod,
- &impunge_local->loc,
- st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type),
- makedev (ia_major (stbuf->ia_rdev),
- ia_minor (stbuf->ia_rdev)), 0, dict);
-
- if (dict)
- dict_unref (dict);
-
- return 0;
-}
-
+ int ret = -1;
-
-int
-afr_sh_entry_impunge_mkdir (call_frame_t *impunge_frame, xlator_t *this,
- int child_index, struct iatt *stbuf)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- dict_t *dict = NULL;
-
- int ret = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
-
- dict = dict_new ();
- if (!dict) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- return 0;
- }
-
- GF_ASSERT (!uuid_is_null (stbuf->ia_gfid));
- ret = afr_set_dict_gfid (dict, stbuf->ia_gfid);
- if (ret)
- gf_log (this->name, GF_LOG_INFO, "%s: gfid set failed",
- impunge_local->loc.path);
-
- gf_log (this->name, GF_LOG_DEBUG,
- "creating missing directory %s on %s",
- impunge_local->loc.path,
- priv->children[child_index]->name);
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_newfile_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->mkdir,
- &impunge_local->loc,
- st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type),
- 0, dict);
-
- if (dict)
- dict_unref (dict);
-
- return 0;
+ if (source < 0)
+ ret = __afr_selfheal_merge_dirent (frame, this, fd, name, inode,
+ sources, healed_sinks,
+ locked_on, replies);
+ else
+ ret = __afr_selfheal_heal_dirent (frame, this, fd, name, inode,
+ source, sources, healed_sinks,
+ locked_on, replies);
+ return ret;
}
-int
-afr_sh_entry_impunge_symlink (call_frame_t *impunge_frame, xlator_t *this,
- int child_index, const char *linkname)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- dict_t *dict = NULL;
- struct iatt *buf = NULL;
- int ret = 0;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
-
- buf = &impunge_local->cont.symlink.buf;
-
- dict = dict_new ();
- if (!dict) {
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- -1, ENOMEM);
- goto out;
- }
-
- GF_ASSERT (!uuid_is_null (buf->ia_gfid));
- ret = afr_set_dict_gfid (dict, buf->ia_gfid);
- if (ret)
- gf_log (this->name, GF_LOG_INFO,
- "%s: dict set gfid failed",
- impunge_local->loc.path);
-
- gf_log (this->name, GF_LOG_DEBUG,
- "creating missing symlink %s -> %s on %s",
- impunge_local->loc.path, linkname,
- priv->children[child_index]->name);
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_newfile_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->symlink,
- linkname, &impunge_local->loc, 0, dict);
-
- if (dict)
- dict_unref (dict);
-out:
- return 0;
+static int
+afr_selfheal_entry_dirent (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int source, unsigned char *sources,
+ unsigned char *healed_sinks, char *name)
+{
+ afr_private_t *priv = NULL;
+ int ret = 0;
+ unsigned char *locked_on = NULL;
+ struct afr_reply *replies = NULL;
+ inode_t *inode = NULL;
+
+ priv = this->private;
+
+ locked_on = alloca0 (priv->child_count);
+
+ replies = alloca0 (priv->child_count * sizeof(*replies));
+
+ ret = afr_selfheal_entrylk (frame, this, fd->inode, this->name,
+ name, locked_on);
+ {
+ if (ret < 2) {
+ ret = -ENOTCONN;
+ goto unlock;
+ }
+
+ inode = afr_selfheal_unlocked_lookup_on (frame, fd->inode, name,
+ replies, locked_on);
+ if (!inode) {
+ ret = -ENOMEM;
+ goto unlock;
+ }
+
+ ret = __afr_selfheal_entry_dirent (frame, this, fd, name, inode,
+ source, sources, healed_sinks,
+ locked_on, replies);
+ }
+unlock:
+ afr_selfheal_unentrylk (frame, this, fd->inode, this->name, name,
+ locked_on);
+ if (inode)
+ inode_unref (inode);
+ return ret;
}
-int
-afr_sh_entry_impunge_symlink_unlink_cbk (call_frame_t *impunge_frame,
- void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- struct iatt *preparent,
- struct iatt *postparent, dict_t *xdata)
+static int
+afr_selfheal_entry_do_subvol (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int child, int source, unsigned char *sources,
+ unsigned char *healed_sinks)
{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int child_index = -1;
- int call_count = -1;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
-
- child_index = (long) cookie;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "unlink of %s on %s failed (%s)",
- impunge_local->loc.path,
- priv->children[child_index]->name,
- strerror (op_errno));
- goto out;
- }
-
- afr_sh_entry_impunge_symlink (impunge_frame, this, child_index,
- impunge_sh->linkname);
-
- return 0;
-out:
- LOCK (&impunge_frame->lock);
- {
- call_count = --impunge_local->call_count;
- }
- UNLOCK (&impunge_frame->lock);
-
- if (call_count == 0)
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- op_ret, op_errno);
+ int ret = 0;
+ gf_dirent_t entries;
+ gf_dirent_t *entry = NULL;
+ off_t offset = 0;
+ call_frame_t *iter_frame = NULL;
+ xlator_t *subvol = NULL;
+ afr_private_t *priv = NULL;
- return 0;
-}
+ priv = this->private;
+ subvol = priv->children[child];
+ INIT_LIST_HEAD (&entries.list);
-int
-afr_sh_entry_impunge_symlink_unlink (call_frame_t *impunge_frame, xlator_t *this,
- int child_index)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
+ iter_frame = afr_copy_frame (frame);
+ if (!iter_frame)
+ return -ENOMEM;
- priv = this->private;
- impunge_local = impunge_frame->local;
+ while ((ret = syncop_readdir (subvol, fd, 131072, offset, &entries))) {
+ if (ret > 0)
+ ret = 0;
+ list_for_each_entry (entry, &entries.list, list) {
+ offset = entry->d_off;
- gf_log (this->name, GF_LOG_DEBUG,
- "unlinking symlink %s with wrong target on %s",
- impunge_local->loc.path,
- priv->children[child_index]->name);
+ if (!strcmp (entry->d_name, ".") ||
+ !strcmp (entry->d_name, ".."))
+ continue;
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_symlink_unlink_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->unlink,
- &impunge_local->loc, 0, NULL);
+ if (__is_root_gfid (fd->inode->gfid) &&
+ !strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR))
+ continue;
- return 0;
-}
-
-
-int
-afr_sh_entry_impunge_readlink_sink_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- const char *linkname, struct iatt *sbuf, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int child_index = -1;
- int call_count = -1;
- int active_src = -1;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- active_src = impunge_sh->active_source;
-
- child_index = (long) cookie;
-
- if ((op_ret == -1) && (op_errno != ENOENT)) {
- gf_log (this->name, GF_LOG_INFO,
- "readlink of %s on %s failed (%s)",
- impunge_local->loc.path,
- priv->children[active_src]->name,
- strerror (op_errno));
- goto out;
- }
-
- /* symlink doesn't exist on the sink */
-
- if ((op_ret == -1) && (op_errno == ENOENT)) {
- afr_sh_entry_impunge_symlink (impunge_frame, this,
- child_index, impunge_sh->linkname);
- return 0;
- }
-
-
- /* symlink exists on the sink, so check if targets match */
-
- if (strcmp (linkname, impunge_sh->linkname) == 0) {
- /* targets match, nothing to do */
-
- goto out;
- } else {
- /*
- * Hah! Sneaky wolf in sheep's clothing!
- */
- afr_sh_entry_impunge_symlink_unlink (impunge_frame, this,
- child_index);
- return 0;
- }
+ ret = afr_selfheal_entry_dirent (iter_frame, this, fd,
+ source, sources,
+ healed_sinks,
+ entry->d_name);
+ AFR_STACK_RESET (iter_frame);
-out:
- LOCK (&impunge_frame->lock);
- {
- call_count = --impunge_local->call_count;
- }
- UNLOCK (&impunge_frame->lock);
+ if (ret)
+ break;
+ }
- if (call_count == 0)
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- op_ret, op_errno);
+ gf_dirent_free (&entries);
+ if (ret)
+ break;
+ }
- return 0;
+ AFR_STACK_DESTROY (iter_frame);
+ return ret;
}
-
-int
-afr_sh_entry_impunge_readlink_sink (call_frame_t *impunge_frame, xlator_t *this,
- int child_index)
+static int
+afr_selfheal_entry_do (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int source, unsigned char *sources,
+ unsigned char *healed_sinks,
+ struct afr_reply *locked_replies)
{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
+ int i = 0;
+ afr_private_t *priv = NULL;
+ int ret = 0;
- priv = this->private;
- impunge_local = impunge_frame->local;
+ priv = this->private;
- gf_log (this->name, GF_LOG_DEBUG,
- "checking symlink target of %s on %s",
- impunge_local->loc.path, priv->children[child_index]->name);
+ gf_log (this->name, GF_LOG_INFO, "performing entry selfheal on %s",
+ uuid_utoa (fd->inode->gfid));
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_readlink_sink_cbk,
- (void *) (long) child_index,
- priv->children[child_index],
- priv->children[child_index]->fops->readlink,
- &impunge_local->loc, 4096, NULL);
-
- return 0;
+ for (i = 0; i < priv->child_count; i++) {
+ if (i != source && !healed_sinks[i])
+ continue;
+ ret = afr_selfheal_entry_do_subvol (frame, this, fd, i, source,
+ sources, healed_sinks);
+ if (ret)
+ break;
+ }
+ return ret;
}
-int
-afr_sh_entry_impunge_readlink_cbk (call_frame_t *impunge_frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- const char *linkname, struct iatt *sbuf, dict_t *xdata)
+static int
+__afr_selfheal_entry_finalize_source (xlator_t *this, unsigned char *sources,
+ unsigned char *sinks,
+ unsigned char *locked_on,
+ struct afr_reply *replies)
{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int child_index = -1;
- int call_count = -1;
- int active_src = -1;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- active_src = impunge_sh->active_source;
-
- child_index = (long) cookie;
-
- if (op_ret == -1) {
- gf_log (this->name, GF_LOG_INFO,
- "readlink of %s on %s failed (%s)",
- impunge_local->loc.path,
- priv->children[active_src]->name,
- strerror (op_errno));
- goto out;
- }
-
- impunge_sh->linkname = gf_strdup (linkname);
- afr_sh_entry_impunge_readlink_sink (impunge_frame, this, child_index);
-
- return 0;
-
-out:
- LOCK (&impunge_frame->lock);
- {
- call_count = --impunge_local->call_count;
- }
- UNLOCK (&impunge_frame->lock);
+ int i = 0;
+ afr_private_t *priv = NULL;
+ int source = -1;
+ int locked_count = 0;
+ int sources_count = 0;
+ int sinks_count = 0;
- if (call_count == 0)
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- op_ret, op_errno);
+ priv = this->private;
- return 0;
-}
+ locked_count = AFR_COUNT (locked_on, priv->child_count);
+ sources_count = AFR_COUNT (sources, priv->child_count);
+ sinks_count = AFR_COUNT (sinks, priv->child_count);
+ if (locked_count == sinks_count || !sources_count) {
+ return -1;
+ }
-int
-afr_sh_entry_impunge_readlink (call_frame_t *impunge_frame, xlator_t *this,
- int child_index, struct iatt *stbuf)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int active_src = -1;
-
- priv = this->private;
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- active_src = impunge_sh->active_source;
- impunge_local->cont.symlink.buf = *stbuf;
-
- STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_readlink_cbk,
- (void *) (long) child_index,
- priv->children[active_src],
- priv->children[active_src]->fops->readlink,
- &impunge_local->loc, 4096, NULL);
-
- return 0;
-}
+ for (i = 0; i < priv->child_count; i++) {
+ if (sources[i]) {
+ source = i;
+ break;
+ }
+ }
-int
-afr_sh_entry_impunge_create (call_frame_t *impunge_frame, xlator_t *this,
- int child_index)
-{
- call_frame_t *frame = NULL;
- afr_local_t *impunge_local = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- ia_type_t type = IA_INVAL;
- int active_src = 0;
- struct iatt *buf = NULL;
-
- AFR_INIT_SH_FRAME_VALS (impunge_frame, impunge_local, impunge_sh,
- frame, local, sh);
- active_src = impunge_sh->active_source;
- afr_update_loc_gfids (&impunge_local->loc, &impunge_sh->entrybuf,
- &impunge_sh->parentbuf);
-
- buf = &impunge_sh->entrybuf;
- type = buf->ia_type;
-
- switch (type) {
- case IA_IFSOCK:
- case IA_IFREG:
- case IA_IFBLK:
- case IA_IFCHR:
- case IA_IFIFO:
- case IA_IFLNK:
- afr_sh_entry_impunge_check_hardlink (impunge_frame, this,
- child_index, buf);
- break;
- case IA_IFDIR:
- afr_sh_entry_impunge_mkdir (impunge_frame, this,
- child_index, buf);
- break;
- default:
- gf_log (this->name, GF_LOG_ERROR,
- "%s has unknown file type on %s: 0%o",
- impunge_local->loc.path,
- priv->children[active_src]->name, type);
- sh->impunge_done (frame, this, -1, EINVAL);
- break;
- }
-
- return 0;
+ return source;
}
-int
-afr_sh_entry_impunge_create_file (call_frame_t *impunge_frame, xlator_t *this,
- int child_index)
-{
- call_frame_t *frame = NULL;
- afr_local_t *impunge_local = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- ia_type_t type = IA_INVAL;
- int active_src = 0;
- struct iatt *buf = NULL;
-
- AFR_INIT_SH_FRAME_VALS (impunge_frame, impunge_local, impunge_sh,
- frame, local, sh);
- active_src = impunge_sh->active_source;
- buf = &impunge_sh->entrybuf;
- type = buf->ia_type;
-
- switch (type) {
- case IA_IFSOCK:
- case IA_IFREG:
- case IA_IFBLK:
- case IA_IFCHR:
- case IA_IFIFO:
- afr_sh_entry_impunge_mknod (impunge_frame, this,
- child_index, buf);
- break;
- case IA_IFLNK:
- afr_sh_entry_impunge_readlink (impunge_frame, this,
- child_index, buf);
- break;
- default:
- gf_log (this->name, GF_LOG_ERROR,
- "%s has unknown file type on %s: 0%o",
- impunge_local->loc.path,
- priv->children[active_src]->name, type);
- sh->impunge_done (frame, this, -1, EINVAL);
- break;
- }
-
- return 0;
-}
-gf_boolean_t
-afr_sh_need_recreate (afr_self_heal_t *impunge_sh, unsigned int child,
- unsigned int child_count)
+static int
+__afr_selfheal_entry_prepare (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ unsigned char *locked_on, unsigned char *sources,
+ unsigned char *sinks, unsigned char *healed_sinks,
+ struct afr_reply *replies, int *source_p)
{
- gf_boolean_t recreate = _gf_false;
+ int ret = -1;
+ int source = -1;
+ afr_private_t *priv = NULL;
+ int i = 0;
- GF_ASSERT (impunge_sh->child_errno);
+ priv = this->private;
- if (child == impunge_sh->active_source)
- goto out;
+ ret = afr_selfheal_unlocked_discover (frame, fd->inode, fd->inode->gfid,
+ replies);
+ if (ret)
+ return ret;
- if (IA_IFLNK == impunge_sh->entrybuf.ia_type) {
- recreate = _gf_true;
- goto out;
- }
+ ret = afr_selfheal_find_direction (frame, this, replies,
+ AFR_ENTRY_TRANSACTION,
+ locked_on, sources, sinks);
+ if (ret)
+ return ret;
- if (impunge_sh->child_errno[child] == ENOENT)
- recreate = _gf_true;
-out:
- return recreate;
-}
+ source = __afr_selfheal_entry_finalize_source (this, sources, sinks,
+ locked_on, replies);
+ if (source < 0) {
+ /* If source is < 0 (typically split-brain), we perform a
+ conservative merge of entries rather than erroring out */
+ }
+ *source_p = source;
-unsigned int
-afr_sh_recreate_count (afr_self_heal_t *impunge_sh, int *sources,
- unsigned int child_count)
-{
- int count = 0;
- int i = 0;
+ for (i = 0; i < priv->child_count; i++)
+ /* Initialize the healed_sinks[] array optimistically to
+ the intersection of to-be-healed (i.e sinks[]) and
+ the list of servers which are up (i.e locked_on[]).
- for (i = 0; i < child_count; i++) {
- if (afr_sh_need_recreate (impunge_sh, i, child_count))
- count++;
- }
+ As we encounter failures in the healing process, we
+ will unmark the respective servers in the healed_sinks[]
+ array.
+ */
+ healed_sinks[i] = sinks[i] && locked_on[i];
- return count;
+ return ret;
}
-int
-afr_sh_entry_call_impunge_recreate (call_frame_t *impunge_frame,
- xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- call_frame_t *frame = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- unsigned int recreate_count = 0;
- int i = 0;
- int active_src = 0;
-
- priv = this->private;
- AFR_INIT_SH_FRAME_VALS (impunge_frame, impunge_local, impunge_sh,
- frame, local, sh);
- active_src = impunge_sh->active_source;
- impunge_sh->entrybuf = impunge_sh->buf[active_src];
- impunge_sh->parentbuf = impunge_sh->parentbufs[active_src];
- recreate_count = afr_sh_recreate_count (impunge_sh, sh->sources,
- priv->child_count);
- if (!recreate_count) {
- afr_sh_entry_call_impunge_done (impunge_frame, this, 0, 0);
- goto out;
- }
- impunge_local->call_count = recreate_count;
- for (i = 0; i < priv->child_count; i++) {
- if (!impunge_local->child_up[i]) {
- impunge_sh->child_errno[i] = ENOTCONN;
- continue;
- }
- if (!afr_sh_need_recreate (impunge_sh, i, priv->child_count)) {
- impunge_sh->child_errno[i] = EEXIST;
- continue;
- }
- }
- for (i = 0; i < priv->child_count; i++) {
- if (!afr_sh_need_recreate (impunge_sh, i, priv->child_count))
- continue;
- (void)afr_sh_entry_impunge_create (impunge_frame, this, i);
- recreate_count--;
- }
- GF_ASSERT (!recreate_count);
-out:
- return 0;
-}
-void
-afr_sh_entry_common_lookup_done (call_frame_t *impunge_frame, xlator_t *this,
- int32_t op_ret, int32_t op_errno)
-{
- afr_private_t *priv = NULL;
- afr_local_t *impunge_local = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- call_frame_t *frame = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- unsigned int gfid_miss_count = 0;
- unsigned int children_up_count = 0;
- uuid_t gfid = {0};
- int active_src = 0;
-
- priv = this->private;
- AFR_INIT_SH_FRAME_VALS (impunge_frame, impunge_local, impunge_sh,
- frame, local, sh);
- active_src = impunge_sh->active_source;
-
- if (op_ret < 0)
- goto done;
- if (impunge_sh->child_errno[active_src]) {
- op_ret = -1;
- op_errno = impunge_sh->child_errno[active_src];
- goto done;
- }
-
- gfid_miss_count = afr_gfid_missing_count (this->name,
- impunge_sh->success_children,
- impunge_sh->buf, priv->child_count,
- impunge_local->loc.path);
- children_up_count = afr_up_children_count (impunge_local->child_up,
- priv->child_count);
- if ((gfid_miss_count == children_up_count) &&
- (children_up_count < priv->child_count)) {
- op_ret = -1;
- op_errno = ENODATA;
- gf_log (this->name, GF_LOG_ERROR, "Not all children are up, "
- "gfid should not be assigned in this state for %s",
- impunge_local->loc.path);
- goto done;
- }
-
- if (gfid_miss_count) {
- afr_update_gfid_from_iatts (gfid, impunge_sh->buf,
- impunge_sh->success_children,
- priv->child_count);
- if (uuid_is_null (gfid)) {
- sh->entries_skipped = _gf_true;
- gf_log (this->name, GF_LOG_INFO, "%s: Skipping entry "
- "self-heal because of gfid absence",
- impunge_local->loc.path);
- goto done;
- }
- afr_sh_common_lookup (impunge_frame, this, &impunge_local->loc,
- afr_sh_entry_common_lookup_done, gfid,
- AFR_LOOKUP_FAIL_CONFLICTS |
- AFR_LOOKUP_FAIL_MISSING_GFIDS,
- NULL);
- } else {
- afr_sh_entry_call_impunge_recreate (impunge_frame, this);
- }
- return;
-done:
- afr_sh_entry_call_impunge_done (impunge_frame, this,
- op_ret, op_errno);
- return;
-}
-
-int
-afr_sh_entry_impunge_entry (call_frame_t *frame, xlator_t *this,
- gf_dirent_t *entry)
-{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_self_heal_t *impunge_sh = NULL;
- int ret = -1;
- call_frame_t *impunge_frame = NULL;
- afr_local_t *impunge_local = NULL;
- int active_src = 0;
- int op_errno = 0;
- int op_ret = -1;
-
- local = frame->local;
- sh = &local->self_heal;
-
- active_src = sh->active_source;
- sh->impunge_done = afr_sh_entry_impunge_entry_done;
-
- if ((strcmp (entry->d_name, ".") == 0)
- || (strcmp (entry->d_name, "..") == 0)
- || ((strcmp (local->loc.path, "/") == 0)
- && (strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR) == 0))) {
-
- gf_log (this->name, GF_LOG_TRACE,
- "skipping inspection of %s under %s",
- entry->d_name, local->loc.path);
- op_ret = 0;
- goto out;
- }
-
- gf_log (this->name, GF_LOG_TRACE,
- "inspecting existence of %s under %s",
- entry->d_name, local->loc.path);
-
- ret = afr_impunge_frame_create (frame, this, active_src,
- &impunge_frame);
- if (ret) {
- op_errno = -ret;
- goto out;
- }
-
- impunge_local = impunge_frame->local;
- impunge_sh = &impunge_local->self_heal;
- ret = afr_build_child_loc (this, &impunge_local->loc, &local->loc,
- entry->d_name);
- loc_copy (&impunge_sh->parent_loc, &local->loc);
- if (ret != 0) {
- op_errno = ENOMEM;
- goto out;
- }
-
- afr_sh_common_lookup (impunge_frame, this, &impunge_local->loc,
- afr_sh_entry_common_lookup_done, NULL,
- AFR_LOOKUP_FAIL_CONFLICTS, NULL);
-
- op_ret = 0;
+static int
+__afr_selfheal_entry (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ unsigned char *locked_on)
+{
+ afr_private_t *priv = NULL;
+ int ret = -1;
+ unsigned char *sources = NULL;
+ unsigned char *sinks = NULL;
+ unsigned char *data_lock = NULL;
+ unsigned char *healed_sinks = NULL;
+ struct afr_reply *locked_replies = NULL;
+ int source = -1;
+
+ priv = this->private;
+
+ sources = alloca0 (priv->child_count);
+ sinks = alloca0 (priv->child_count);
+ healed_sinks = alloca0 (priv->child_count);
+ data_lock = alloca0 (priv->child_count);
+
+ locked_replies = alloca0 (sizeof (*locked_replies) * priv->child_count);
+
+ ret = afr_selfheal_entrylk (frame, this, fd->inode, this->name, NULL,
+ data_lock);
+ {
+ if (ret < 2) {
+ ret = -ENOTCONN;
+ goto unlock;
+ }
+
+ ret = __afr_selfheal_entry_prepare (frame, this, fd, data_lock,
+ sources, sinks, healed_sinks,
+ locked_replies, &source);
+ }
+unlock:
+ afr_selfheal_unentrylk (frame, this, fd->inode, this->name, NULL,
+ data_lock);
+ if (ret < 0)
+ goto out;
+
+ ret = afr_selfheal_entry_do (frame, this, fd, source, sources,
+ healed_sinks, locked_replies);
+ if (ret)
+ goto out;
+
+ ret = afr_selfheal_undo_pending (frame, this, fd->inode, sources, sinks,
+ healed_sinks, AFR_ENTRY_TRANSACTION,
+ locked_replies, data_lock);
out:
- if (ret) {
- if (impunge_frame)
- AFR_STACK_DESTROY (impunge_frame);
- sh->impunge_done (frame, this, op_ret, op_errno);
- }
-
- return 0;
-}
-
-
-int
-afr_sh_entry_impunge_readdir_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- gf_dirent_t *entries, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- gf_dirent_t *entry = NULL;
- off_t last_offset = 0;
- int active_src = 0;
- int entry_count = 0;
-
- priv = this->private;
- local = frame->local;
- sh = &local->self_heal;
-
- active_src = sh->active_source;
-
- if (op_ret <= 0) {
- if (op_ret < 0) {
- gf_log (this->name, GF_LOG_INFO,
- "readdir of %s on subvolume %s failed (%s)",
- local->loc.path,
- priv->children[active_src]->name,
- strerror (op_errno));
- sh->op_failed = 1;
- } else {
- gf_log (this->name, GF_LOG_TRACE,
- "readdir of %s on subvolume %s complete",
- local->loc.path,
- priv->children[active_src]->name);
- }
-
- afr_sh_entry_impunge_all (frame, this);
- return 0;
- }
-
- list_for_each_entry (entry, &entries->list, list) {
- last_offset = entry->d_off;
- entry_count++;
- }
-
- gf_log (this->name, GF_LOG_DEBUG,
- "readdir'ed %d entries from %s",
- entry_count, priv->children[active_src]->name);
-
- sh->offset = last_offset;
- local->call_count = entry_count;
-
- list_for_each_entry (entry, &entries->list, list) {
- afr_sh_entry_impunge_entry (frame, this, entry);
- }
-
- return 0;
+ return ret;
}
-int
-afr_sh_entry_impunge_subvol (call_frame_t *frame, xlator_t *this)
+static fd_t *
+afr_selfheal_data_opendir (xlator_t *this, inode_t *inode)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;