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-rw-r--r--gluster/gfapi/gfapi.py16
-rw-r--r--test/functional/libgfapi-python-tests.py2
-rw-r--r--test/unit/gluster/test_gfapi.py2
3 files changed, 13 insertions, 7 deletions
diff --git a/gluster/gfapi/gfapi.py b/gluster/gfapi/gfapi.py
index c01d534..eedc03b 100644
--- a/gluster/gfapi/gfapi.py
+++ b/gluster/gfapi/gfapi.py
@@ -626,7 +626,7 @@ class DirEntry(object):
class Volume(object):
def __init__(self, host, volname,
- proto="tcp", port=24007, log_file=None, log_level=7):
+ proto="tcp", port=24007, log_file="/dev/null", log_level=7):
"""
Create a Volume object instance.
@@ -638,7 +638,7 @@ class Volume(object):
:param port: Port number where gluster management daemon is listening.
:param log_file: Path to log file. When this is set to None, a new
logfile will be created in default log directory
- i.e /var/log/glusterfs
+ i.e /var/log/glusterfs. The default is "/dev/null"
:param log_level: Integer specifying the degree of verbosity.
Higher the value, more verbose the logging.
@@ -762,22 +762,28 @@ class Volume(object):
Higher the value, more verbose the logging.
"""
if self.fs:
- ret = api.glfs_set_logging(self.fs, self.log_file, self.log_level)
+ ret = api.glfs_set_logging(self.fs, log_file, log_level)
if ret < 0:
err = ctypes.get_errno()
raise LibgfapiException("glfs_set_logging(%s, %s) failed: %s" %
- (self.log_file, self.log_level,
+ (log_file, log_level,
os.strerror(err)))
self.log_file = log_file
self.log_level = log_level
+ def disable_logging(self):
+ """
+ Sends logs to /dev/null effectively disabling them
+ """
+ self.set_logging("/dev/null", self.log_level)
+
@validate_mount
def get_volume_id(self):
"""
Returns the volume ID (of type uuid.UUID) for the currently mounted
volume.
"""
- if self.volid != None:
+ if self.volid is not None:
return self.volid
size = 16
buf = ctypes.create_string_buffer(size)
diff --git a/test/functional/libgfapi-python-tests.py b/test/functional/libgfapi-python-tests.py
index 58bda89..8f631d4 100644
--- a/test/functional/libgfapi-python-tests.py
+++ b/test/functional/libgfapi-python-tests.py
@@ -1095,7 +1095,7 @@ class TestVolumeInit(unittest.TestCase):
# Create volume object instance
vol = Volume(HOST, VOLNAME)
# Check attribute init
- self.assertEqual(vol.log_file, None)
+ self.assertEqual(vol.log_file, "/dev/null")
self.assertEqual(vol.log_level, 7)
self.assertEqual(vol.host, HOST)
self.assertEqual(vol.volname, VOLNAME)
diff --git a/test/unit/gluster/test_gfapi.py b/test/unit/gluster/test_gfapi.py
index 4b58597..4216f96 100644
--- a/test/unit/gluster/test_gfapi.py
+++ b/test/unit/gluster/test_gfapi.py
@@ -449,7 +449,7 @@ class TestVolume(unittest.TestCase):
_m_set_logging = Mock(return_value=-1)
with patch("gluster.gfapi.api.glfs_set_logging", _m_set_logging):
self.assertRaises(LibgfapiException, v.set_logging, "/dev/null", 7)
- _m_set_logging.assert_called_once_with(v.fs, None, 7)
+ _m_set_logging.assert_called_once_with(v.fs, "/dev/null", 7)
def test_chmod_success(self):
mock_glfs_chmod = Mock()
-rw-r--r--xlators/cluster/afr/src/afr-inode-write.c2693
-rw-r--r--xlators/cluster/afr/src/afr-inode-write.h73
-rw-r--r--xlators/cluster/afr/src/afr-lk-common.c1667
-rw-r--r--xlators/cluster/afr/src/afr-mem-types.h49
-rw-r--r--xlators/cluster/afr/src/afr-open.c337
-rw-r--r--xlators/cluster/afr/src/afr-read-txn.c239
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-common.c1472
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-common.h66
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-data.c1297
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-entry.c2259
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-metadata.c899
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-name.c457
-rw-r--r--xlators/cluster/afr/src/afr-self-heal.h179
-rw-r--r--xlators/cluster/afr/src/afr-self-heald.c1256
-rw-r--r--xlators/cluster/afr/src/afr-self-heald.h72
-rw-r--r--xlators/cluster/afr/src/afr-transaction.c2171
-rw-r--r--xlators/cluster/afr/src/afr-transaction.h61
-rw-r--r--xlators/cluster/afr/src/afr.c2790
-rw-r--r--xlators/cluster/afr/src/afr.h1207
-rw-r--r--xlators/cluster/afr/src/pump.c2473
-rw-r--r--xlators/cluster/afr/src/pump.h81
-rw-r--r--xlators/cluster/dht/src/Makefile.am33
-rw-r--r--xlators/cluster/dht/src/dht-common.c6665
-rw-r--r--xlators/cluster/dht/src/dht-common.h864
-rw-r--r--xlators/cluster/dht/src/dht-diskusage.c414
-rw-r--r--xlators/cluster/dht/src/dht-hashfn.c147
-rw-r--r--xlators/cluster/dht/src/dht-helper.c1216
-rw-r--r--xlators/cluster/dht/src/dht-inode-read.c1139
-rw-r--r--xlators/cluster/dht/src/dht-inode-write.c1017
-rw-r--r--xlators/cluster/dht/src/dht-layout.c1078
-rw-r--r--xlators/cluster/dht/src/dht-linkfile.c428
-rw-r--r--xlators/cluster/dht/src/dht-mem-types.h35
-rw-r--r--xlators/cluster/dht/src/dht-rebalance.c1908
-rw-r--r--xlators/cluster/dht/src/dht-rename.c1219
-rw-r--r--xlators/cluster/dht/src/dht-selfheal.c1297
-rw-r--r--xlators/cluster/dht/src/dht-shared.c780
-rw-r--r--xlators/cluster/dht/src/dht.c269
-rw-r--r--xlators/cluster/dht/src/nufa.c1012
-rw-r--r--xlators/cluster/dht/src/switch.c904
-rw-r--r--xlators/cluster/dht/src/unittest/dht_layout_mock.c63
-rw-r--r--xlators/cluster/dht/src/unittest/dht_layout_unittest.c124
-rw-r--r--xlators/cluster/ha/src/Makefile.am9
-rw-r--r--xlators/cluster/ha/src/ha-helpers.c43
-rw-r--r--xlators/cluster/ha/src/ha-mem-types.h26
-rw-r--r--xlators/cluster/ha/src/ha.c1358
-rw-r--r--xlators/cluster/ha/src/ha.h32
-rw-r--r--xlators/cluster/map/src/Makefile.am9
-rw-r--r--xlators/cluster/map/src/map-helper.c29
-rw-r--r--xlators/cluster/map/src/map-mem-types.h24
-rw-r--r--xlators/cluster/map/src/map.c1911
-rw-r--r--xlators/cluster/map/src/map.h25
-rw-r--r--xlators/cluster/nsr-client/Makefile.am (renamed from xlators/cluster/unify/Makefile.am)0
-rw-r--r--xlators/cluster/nsr-client/src/Makefile.am33
-rw-r--r--xlators/cluster/nsr-client/src/fop-template.c113
-rwxr-xr-xxlators/cluster/nsr-client/src/gen-fops.py57
-rw-r--r--xlators/cluster/nsr-client/src/nsrc.c243
-rw-r--r--xlators/cluster/nsr-recon/Makefile.am (renamed from xlators/storage/bdb/Makefile.am)0
-rw-r--r--xlators/cluster/nsr-recon/src/Makefile.am23
-rw-r--r--xlators/cluster/nsr-recon/src/recon_driver.c3130
-rw-r--r--xlators/cluster/nsr-recon/src/recon_driver.h325
-rw-r--r--xlators/cluster/nsr-recon/src/recon_xlator.c1010
-rw-r--r--xlators/cluster/nsr-recon/src/recon_xlator.h92
-rw-r--r--xlators/cluster/nsr-server/Makefile.am3
-rw-r--r--xlators/cluster/nsr-server/src/Makefile.am43
-rw-r--r--xlators/cluster/nsr-server/src/all-templates.c345
-rwxr-xr-xxlators/cluster/nsr-server/src/codegen.py174
-rw-r--r--xlators/cluster/nsr-server/src/etcd-api.c831
-rw-r--r--xlators/cluster/nsr-server/src/etcd-api.h214
-rw-r--r--xlators/cluster/nsr-server/src/etcd-sim.c280
-rwxr-xr-xxlators/cluster/nsr-server/src/gen-fops.py120
-rw-r--r--xlators/cluster/nsr-server/src/leader.c138
-rw-r--r--xlators/cluster/nsr-server/src/nsr-internal.h101
-rw-r--r--xlators/cluster/nsr-server/src/nsr.c812
-rw-r--r--xlators/cluster/nsr-server/src/recon_notify.c389
-rw-r--r--xlators/cluster/nsr-server/src/yajl.c175
-rw-r--r--xlators/cluster/nsr-server/src/yajl/yajl_common.h75
-rw-r--r--xlators/cluster/nsr-server/src/yajl/yajl_gen.h157
-rw-r--r--xlators/cluster/nsr-server/src/yajl/yajl_parse.h226
-rw-r--r--xlators/cluster/nsr-server/src/yajl/yajl_tree.h177
-rw-r--r--xlators/cluster/nsr-server/src/yajl/yajl_version.h23
-rw-r--r--xlators/cluster/nsr-server/src/yajl_alloc.c49
-rw-r--r--xlators/cluster/nsr-server/src/yajl_alloc.h34
-rw-r--r--xlators/cluster/nsr-server/src/yajl_buf.c103
-rw-r--r--xlators/cluster/nsr-server/src/yajl_buf.h57
-rw-r--r--xlators/cluster/nsr-server/src/yajl_bytestack.h69
-rw-r--r--xlators/cluster/nsr-server/src/yajl_encode.c220
-rw-r--r--xlators/cluster/nsr-server/src/yajl_encode.h34
-rw-r--r--xlators/cluster/nsr-server/src/yajl_gen.c350
-rw-r--r--xlators/cluster/nsr-server/src/yajl_lex.c763
-rw-r--r--xlators/cluster/nsr-server/src/yajl_lex.h117
-rw-r--r--xlators/cluster/nsr-server/src/yajl_parser.c492
-rw-r--r--xlators/cluster/nsr-server/src/yajl_parser.h78
-rw-r--r--xlators/cluster/nsr-server/src/yajl_tree.c501
-rw-r--r--xlators/cluster/nsr-server/src/yajl_version.c7
-rw-r--r--xlators/cluster/stripe/src/Makefile.am15
-rw-r--r--xlators/cluster/stripe/src/stripe-helpers.c677
-rw-r--r--xlators/cluster/stripe/src/stripe-mem-types.h31
-rw-r--r--xlators/cluster/stripe/src/stripe.c8278
-rw-r--r--xlators/cluster/stripe/src/stripe.h288
-rw-r--r--xlators/cluster/unify/src/Makefile.am16
-rw-r--r--xlators/cluster/unify/src/unify-self-heal.c1225
-rw-r--r--xlators/cluster/unify/src/unify.c4451
-rw-r--r--xlators/cluster/unify/src/unify.h132
-rw-r--r--xlators/debug/Makefile.am2
-rw-r--r--xlators/debug/error-gen/src/Makefile.am9
-rw-r--r--xlators/debug/error-gen/src/error-gen-mem-types.h20
-rw-r--r--xlators/debug/error-gen/src/error-gen.c2952
-rw-r--r--xlators/debug/error-gen/src/error-gen.h48
-rw-r--r--xlators/debug/io-stats/Makefile.am3
-rw-r--r--xlators/debug/io-stats/src/Makefile.am18
-rw-r--r--xlators/debug/io-stats/src/io-stats-mem-types.h24
-rw-r--r--xlators/debug/io-stats/src/io-stats.c3099
-rw-r--r--xlators/debug/trace/src/Makefile.am8
-rw-r--r--xlators/debug/trace/src/trace-mem-types.h21
-rw-r--r--xlators/debug/trace/src/trace.c5433
-rw-r--r--xlators/debug/trace/src/trace.h61
-rw-r--r--xlators/encryption/Makefile.am2
-rw-r--r--xlators/encryption/crypt/Makefile.am3
-rw-r--r--xlators/encryption/crypt/src/Makefile.am24
-rw-r--r--xlators/encryption/crypt/src/atom.c962
-rw-r--r--xlators/encryption/crypt/src/crypt-common.h141
-rw-r--r--xlators/encryption/crypt/src/crypt-mem-types.h44
-rw-r--r--xlators/encryption/crypt/src/crypt.c4522
-rw-r--r--xlators/encryption/crypt/src/crypt.h908
-rw-r--r--xlators/encryption/crypt/src/data.c769
-rw-r--r--xlators/encryption/crypt/src/keys.c302
-rw-r--r--xlators/encryption/crypt/src/metadata.c605
-rw-r--r--xlators/encryption/crypt/src/metadata.h74
-rw-r--r--xlators/encryption/rot-13/src/Makefile.am7
-rw-r--r--xlators/encryption/rot-13/src/rot-13.c91
-rw-r--r--xlators/encryption/rot-13/src/rot-13.h20
-rw-r--r--xlators/features/Makefile.am5
-rw-r--r--xlators/features/barrier/Makefile.am3
-rw-r--r--xlators/features/barrier/src/Makefile.am16
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-rw-r--r--xlators/features/barrier/src/barrier.c658
-rw-r--r--xlators/features/barrier/src/barrier.h91
-rw-r--r--xlators/features/changelog/Makefile.am3
-rw-r--r--xlators/features/changelog/lib/Makefile.am3
-rw-r--r--xlators/features/changelog/lib/examples/c/get-changes.c87
-rw-r--r--xlators/features/changelog/lib/examples/python/changes.py32
-rw-r--r--xlators/features/changelog/lib/examples/python/libgfchangelog.py64
-rw-r--r--xlators/features/changelog/lib/src/Makefile.am38
-rw-r--r--xlators/features/changelog/lib/src/changelog.h31
-rw-r--r--xlators/features/changelog/lib/src/gf-changelog-helpers.c180
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-rw-r--r--xlators/features/changelog/lib/src/gf-changelog-process.c571
-rw-r--r--xlators/features/changelog/lib/src/gf-changelog.c571
-rw-r--r--xlators/features/changelog/lib/src/gf-history-changelog.c274
-rw-r--r--xlators/features/changelog/src/Makefile.am21
-rw-r--r--xlators/features/changelog/src/changelog-default-fops.c561
-rw-r--r--xlators/features/changelog/src/changelog-encoders.c182
-rw-r--r--xlators/features/changelog/src/changelog-encoders.h48
-rw-r--r--xlators/features/changelog/src/changelog-fops.h157
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-rw-r--r--xlators/features/changelog/src/changelog-helpers.h578
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-rw-r--r--xlators/features/changelog/src/changelog-notifier.c314
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-rw-r--r--xlators/features/compress/Makefile.am3
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-rw-r--r--xlators/features/compress/src/cdc-helper.c547
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-rw-r--r--xlators/features/compress/src/cdc.c361
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-rw-r--r--xlators/features/filter/src/Makefile.am11
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-rw-r--r--xlators/features/gfid-access/Makefile.am (renamed from xlators/bindings/python/Makefile.am)0
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-rw-r--r--xlators/features/glupy/Makefile.am3
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-rw-r--r--xlators/features/index/Makefile.am3
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-rw-r--r--xlators/features/index/src/index-mem-types.h22
-rw-r--r--xlators/features/index/src/index.c1275
-rw-r--r--xlators/features/index/src/index.h59
-rw-r--r--xlators/features/locks/src/Makefile.am17
-rw-r--r--xlators/features/locks/src/clear.c423
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-rw-r--r--xlators/features/quota/src/quotad-helpers.c113
-rw-r--r--xlators/features/quota/src/quotad-helpers.h24
-rw-r--r--xlators/features/quota/src/quotad.c210
-rw-r--r--xlators/features/read-only/Makefile.am3
-rw-r--r--xlators/features/read-only/src/Makefile.am22
-rw-r--r--xlators/features/read-only/src/read-only-common.c239
-rw-r--r--xlators/features/read-only/src/read-only-common.h115
-rw-r--r--xlators/features/read-only/src/read-only.c77
-rw-r--r--xlators/features/read-only/src/worm.c89
-rw-r--r--xlators/features/trash/src/Makefile.am11
-rw-r--r--xlators/features/trash/src/trash-mem-types.h22
-rw-r--r--xlators/features/trash/src/trash.c1973
-rw-r--r--xlators/features/trash/src/trash.h79
-rw-r--r--xlators/lib/src/libxlator.c527
-rw-r--r--xlators/lib/src/libxlator.h157
-rw-r--r--xlators/meta/src/Makefile.am5
-rw-r--r--xlators/meta/src/meta-mem-types.h25
-rw-r--r--xlators/meta/src/meta.c88
-rw-r--r--xlators/meta/src/meta.h20
-rw-r--r--xlators/meta/src/misc.c20
-rw-r--r--xlators/meta/src/misc.h20
-rw-r--r--xlators/meta/src/tree.c43
-rw-r--r--xlators/meta/src/tree.h20
-rw-r--r--xlators/meta/src/view.c20
-rw-r--r--xlators/meta/src/view.h20
-rw-r--r--xlators/mgmt/Makefile.am3
-rw-r--r--xlators/mgmt/glusterd/Makefile.am3
-rw-r--r--xlators/mgmt/glusterd/src/Makefile.am50
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-brick-ops.c2010
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-etcd.c87
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-etcd.h23
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-geo-rep.c4671
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handler.c4401
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handshake.c1365
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-hooks.c559
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-hooks.h89
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-locks.c656
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-locks.h51
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-log-ops.c271
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mem-types.h75
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mgmt-handler.c936
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mgmt.c1899
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mgmt.h45
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mountbroker.c692
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mountbroker.h42
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-op-sm.c6474
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-op-sm.h314
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-pmap.c492
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-pmap.h54
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-quota.c1451
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-rebalance.c770
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-replace-brick.c2033
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-rpc-ops.c2018
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-sm.c1161
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-sm.h217
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot.c5787
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.c4103
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.h173
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-syncop.c1699
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-syncop.h71
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c11544
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.h758
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volgen.c4597
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volgen.h179
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-ops.c2317
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-set.c1558
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.c1668
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.h1019
-rw-r--r--xlators/mount/fuse/src/Makefile.am36
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.c6928
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.h545
-rw-r--r--xlators/mount/fuse/src/fuse-extra.c137
-rw-r--r--xlators/mount/fuse/src/fuse-extra.h42
-rw-r--r--xlators/mount/fuse/src/fuse-helpers.c610
-rw-r--r--xlators/mount/fuse/src/fuse-mem-types.h28
-rw-r--r--xlators/mount/fuse/src/fuse-resolve.c726
-rw-r--r--xlators/mount/fuse/utils/Makefile.am2
-rwxr-xr-xxlators/mount/fuse/utils/mount.glusterfs.in691
-rwxr-xr-xxlators/mount/fuse/utils/mount_glusterfs.in608
-rw-r--r--xlators/nfs/Makefile.am3
-rw-r--r--xlators/nfs/server/Makefile.am3
-rw-r--r--xlators/nfs/server/src/Makefile.am24
-rw-r--r--xlators/nfs/server/src/acl3.c843
-rw-r--r--xlators/nfs/server/src/acl3.h42
-rw-r--r--xlators/nfs/server/src/mount3.c2781
-rw-r--r--xlators/nfs/server/src/mount3.h131
-rw-r--r--xlators/nfs/server/src/mount3udp_svc.c189
-rw-r--r--xlators/nfs/server/src/nfs-common.c465
-rw-r--r--xlators/nfs/server/src/nfs-common.h81
-rw-r--r--xlators/nfs/server/src/nfs-fops.c1697
-rw-r--r--xlators/nfs/server/src/nfs-fops.h248
-rw-r--r--xlators/nfs/server/src/nfs-generics.c345
-rw-r--r--xlators/nfs/server/src/nfs-generics.h168
-rw-r--r--xlators/nfs/server/src/nfs-inodes.c608
-rw-r--r--xlators/nfs/server/src/nfs-inodes.h76
-rw-r--r--xlators/nfs/server/src/nfs-mem-types.h53
-rw-r--r--xlators/nfs/server/src/nfs.c1905
-rw-r--r--xlators/nfs/server/src/nfs.h137
-rw-r--r--xlators/nfs/server/src/nfs3-fh.c188
-rw-r--r--xlators/nfs/server/src/nfs3-fh.h103
-rw-r--r--xlators/nfs/server/src/nfs3-helpers.c3881
-rw-r--r--xlators/nfs/server/src/nfs3-helpers.h340
-rw-r--r--xlators/nfs/server/src/nfs3.c5628
-rw-r--r--xlators/nfs/server/src/nfs3.h287
-rw-r--r--xlators/nfs/server/src/nlm4.c2546
-rw-r--r--xlators/nfs/server/src/nlm4.h112
-rw-r--r--xlators/nfs/server/src/nlmcbk_svc.c116
-rw-r--r--xlators/performance/Makefile.am2
-rw-r--r--xlators/performance/io-cache/src/Makefile.am10
-rw-r--r--xlators/performance/io-cache/src/io-cache.c2932
-rw-r--r--xlators/performance/io-cache/src/io-cache.h376
-rw-r--r--xlators/performance/io-cache/src/ioc-inode.c325
-rw-r--r--xlators/performance/io-cache/src/ioc-mem-types.h29
-rw-r--r--xlators/performance/io-cache/src/page.c1508
-rw-r--r--xlators/performance/io-threads/src/Makefile.am9
-rw-r--r--xlators/performance/io-threads/src/io-threads.c1818
-rw-r--r--xlators/performance/io-threads/src/io-threads.h116
-rw-r--r--xlators/performance/io-threads/src/iot-mem-types.h22
-rw-r--r--xlators/performance/md-cache/Makefile.am1
-rw-r--r--xlators/performance/md-cache/src/Makefile.am25
-rw-r--r--xlators/performance/md-cache/src/md-cache-mem-types.h24
-rw-r--r--xlators/performance/md-cache/src/md-cache.c2303
-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/Makefile.am3
-rw-r--r--xlators/performance/quick-read/src/Makefile.am15
-rw-r--r--xlators/performance/quick-read/src/quick-read-mem-types.h27
-rw-r--r--xlators/performance/quick-read/src/quick-read.c1148
-rw-r--r--xlators/performance/quick-read/src/quick-read.h81
-rw-r--r--xlators/performance/read-ahead/src/Makefile.am9
-rw-r--r--xlators/performance/read-ahead/src/page.c801
-rw-r--r--xlators/performance/read-ahead/src/read-ahead-mem-types.h26
-rw-r--r--xlators/performance/read-ahead/src/read-ahead.c1734
-rw-r--r--xlators/performance/read-ahead/src/read-ahead.h156
-rw-r--r--xlators/performance/readdir-ahead/Makefile.am3
-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/stat-prefetch/src/Makefile.am11
-rw-r--r--xlators/performance/stat-prefetch/src/stat-prefetch.c508
-rw-r--r--xlators/performance/stat-prefetch/src/stat-prefetch.h32
-rw-r--r--xlators/performance/symlink-cache/src/Makefile.am9
-rw-r--r--xlators/performance/symlink-cache/src/symlink-cache.c80
-rw-r--r--xlators/performance/write-behind/src/Makefile.am9
-rw-r--r--xlators/performance/write-behind/src/write-behind-mem-types.h26
-rw-r--r--xlators/performance/write-behind/src/write-behind.c2944
-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/Makefile.am4
-rw-r--r--xlators/protocol/auth/Makefile.am1
-rw-r--r--xlators/protocol/auth/addr/Makefile.am1
-rw-r--r--xlators/protocol/auth/addr/src/Makefile.am14
-rw-r--r--xlators/protocol/auth/addr/src/addr.c230
-rw-r--r--xlators/protocol/auth/login/Makefile.am1
-rw-r--r--xlators/protocol/auth/login/src/Makefile.am12
-rw-r--r--xlators/protocol/auth/login/src/login.c128
-rw-r--r--xlators/protocol/client/Makefile.am2
-rw-r--r--xlators/protocol/client/src/Makefile.am18
-rw-r--r--xlators/protocol/client/src/client-callback.c56
-rw-r--r--xlators/protocol/client/src/client-handshake.c1979
-rw-r--r--xlators/protocol/client/src/client-helpers.c349
-rw-r--r--xlators/protocol/client/src/client-lk.c573
-rw-r--r--xlators/protocol/client/src/client-mem-types.h25
-rw-r--r--xlators/protocol/client/src/client-protocol.c6968
-rw-r--r--xlators/protocol/client/src/client-protocol.h174
-rw-r--r--xlators/protocol/client/src/client-rpc-fops.c6299
-rw-r--r--xlators/protocol/client/src/client.c2908
-rw-r--r--xlators/protocol/client/src/client.h262
-rw-r--r--xlators/protocol/client/src/saved-frames.c198
-rw-r--r--xlators/protocol/client/src/saved-frames.h79
-rw-r--r--xlators/protocol/server/Makefile.am2
-rw-r--r--xlators/protocol/server/src/Makefile.am28
-rw-r--r--xlators/protocol/server/src/authenticate.c253
-rw-r--r--xlators/protocol/server/src/authenticate.h51
-rw-r--r--xlators/protocol/server/src/server-dentry.c413
-rw-r--r--xlators/protocol/server/src/server-handshake.c783
-rw-r--r--xlators/protocol/server/src/server-helpers.c1859
-rw-r--r--xlators/protocol/server/src/server-helpers.h109
-rw-r--r--xlators/protocol/server/src/server-mem-types.h30
-rw-r--r--xlators/protocol/server/src/server-protocol.c8300
-rw-r--r--xlators/protocol/server/src/server-protocol.h151
-rw-r--r--xlators/protocol/server/src/server-resolve.c598
-rw-r--r--xlators/protocol/server/src/server-rpc-fops.c6273
-rw-r--r--xlators/protocol/server/src/server.c1248
-rw-r--r--xlators/protocol/server/src/server.h196
-rw-r--r--xlators/storage/Makefile.am8
-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.c2450
-rw-r--r--xlators/storage/bd/src/bd.h173
-rw-r--r--xlators/storage/bdb/src/Makefile.am18
-rw-r--r--xlators/storage/bdb/src/bctx.c394
-rw-r--r--xlators/storage/bdb/src/bdb-ll.c1455
-rw-r--r--xlators/storage/bdb/src/bdb.c3371
-rw-r--r--xlators/storage/bdb/src/bdb.h439
-rw-r--r--xlators/storage/posix/src/Makefile.am18
-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.c881
-rw-r--r--xlators/storage/posix/src/posix-handle.h228
-rw-r--r--xlators/storage/posix/src/posix-helpers.c1553
-rw-r--r--xlators/storage/posix/src/posix-mem-types.h27
-rw-r--r--xlators/storage/posix/src/posix.c6568
-rw-r--r--xlators/storage/posix/src/posix.h183
-rw-r--r--xlators/system/Makefile.am1
-rw-r--r--xlators/system/posix-acl/Makefile.am1
-rw-r--r--xlators/system/posix-acl/src/Makefile.am23
-rw-r--r--xlators/system/posix-acl/src/posix-acl-mem-types.h24
-rw-r--r--xlators/system/posix-acl/src/posix-acl-xattr.c180
-rw-r--r--xlators/system/posix-acl/src/posix-acl-xattr.h26
-rw-r--r--xlators/system/posix-acl/src/posix-acl.c2204
-rw-r--r--xlators/system/posix-acl/src/posix-acl.h30
497 files changed, 268024 insertions, 67220 deletions
diff --git a/xlators/Makefile.am b/xlators/Makefile.am
index 2abb52194..f60fa85ce 100644
--- a/xlators/Makefile.am
+++ b/xlators/Makefile.am
@@ -1,3 +1,4 @@
-SUBDIRS = cluster storage protocol performance debug features encryption mount
+SUBDIRS = cluster storage protocol performance debug features encryption mount nfs mgmt system \
+ playground
-CLEANFILES =
+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 7f32d7f29..000000000
--- a/xlators/bindings/python/src/python.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- Copyright (c) 2007-2009 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
-};
-
-struct xlator_mops mops = {
-};
-
-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/Makefile.am b/xlators/cluster/Makefile.am
index a6ddb3564..6e883e565 100644
--- a/xlators/cluster/Makefile.am
+++ b/xlators/cluster/Makefile.am
@@ -1,3 +1,3 @@
-SUBDIRS = unify stripe afr dht ha map
+SUBDIRS = stripe afr dht nsr-server nsr-recon nsr-client
CLEANFILES =
diff --git a/xlators/cluster/afr/src/Makefile.am b/xlators/cluster/afr/src/Makefile.am
index 1bde9e5ba..ea5a90abb 100644
--- a/xlators/cluster/afr/src/Makefile.am
+++ b/xlators/cluster/afr/src/Makefile.am
@@ -1,20 +1,38 @@
-xlator_LTLIBRARIES = afr.la
+xlator_LTLIBRARIES = afr.la pump.la
xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/cluster
-afr_la_LDFLAGS = -module -avoidversion
+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-lk-common.c \
+ afr-read-txn.c \
+ $(top_builddir)/xlators/lib/src/libxlator.c
-afr_la_SOURCES = afr.c afr-dir-read.c afr-dir-write.c afr-inode-read.c afr-inode-write.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_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
-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
+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-mem-types.h \
+ afr-common.c afr-self-heald.h pump.h \
+ $(top_builddir)/xlators/lib/src/libxlator.h
+
+AM_CPPFLAGS = $(GF_CPPFLAGS) \
+ -I$(top_srcdir)/libglusterfs/src -I$(top_srcdir)/xlators/lib/src \
+ -I$(top_srcdir)/rpc/rpc-lib/src
-AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS) \
- -I$(top_srcdir)/libglusterfs/src -shared -nostartfiles $(GF_CFLAGS)
+AM_CFLAGS = -Wall $(GF_CFLAGS)
-CLEANFILES =
+CLEANFILES =
uninstall-local:
rm -f $(DESTDIR)$(xlatordir)/replicate.so
install-data-hook:
- ln -sf afr.so $(DESTDIR)$(xlatordir)/replicate.so \ No newline at end of file
+ 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
new file mode 100644
index 000000000..164a651ba
--- /dev/null
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -0,0 +1,3629 @@
+/*
+ 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 <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 "statedump.h"
+#include "inode.h"
+
+#include "fd.h"
+
+#include "afr-inode-read.h"
+#include "afr-inode-write.h"
+#include "afr-dir-read.h"
+#include "afr-dir-write.h"
+#include "afr-transaction.h"
+#include "afr-self-heal.h"
+#include "afr-self-heald.h"
+
+
+call_frame_t *
+afr_copy_frame (call_frame_t *base)
+{
+ 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;
+ }
+
+ return frame;
+}
+
+/*
+ * 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)
+{
+ 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;
+
+ 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_inode_read_subvol_set_small (inode_t *inode, xlator_t *this,
+ unsigned char *data, unsigned char *metadata,
+ int event)
+{
+ afr_private_t *priv = NULL;
+ uint16_t datamap = 0;
+ uint16_t metadatamap = 0;
+ uint64_t val = 0;
+ int i = 0;
+
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (data[i])
+ datamap |= (1 << i);
+ if (metadata[i])
+ metadatamap |= (1 << i);
+ }
+
+ val = ((uint64_t) metadatamap) |
+ (((uint64_t) datamap) << 16) |
+ (((uint64_t) event) << 32);
+
+ return __inode_ctx_set (inode, this, &val);
+}
+
+
+int
+__afr_inode_read_subvol_reset_small (inode_t *inode, xlator_t *this)
+{
+ 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_inode_read_subvol_get (inode_t *inode, xlator_t *this,
+ unsigned char *data, unsigned char *metadata,
+ int *event_p)
+{
+ afr_private_t *priv = NULL;
+ int ret = -1;
+
+ 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;
+}
+
+
+int
+__afr_inode_read_subvol_set (inode_t *inode, xlator_t *this, unsigned char *data,
+ unsigned char *metadata, int event)
+{
+ afr_private_t *priv = NULL;
+ int ret = -1;
+
+ priv = this->private;
+
+ if (priv->child_count <= 16)
+ ret = __afr_inode_read_subvol_set_small (inode, this, data,
+ metadata, event);
+ else
+ ret = -1;
+
+ return ret;
+}
+
+
+int
+__afr_inode_read_subvol_reset (inode_t *inode, xlator_t *this)
+{
+ afr_private_t *priv = NULL;
+ int ret = -1;
+
+ priv = this->private;
+
+ if (priv->child_count <= 16)
+ ret = __afr_inode_read_subvol_reset_small (inode, this);
+ else
+ ret = -1;
+
+ return ret;
+}
+
+
+int
+afr_inode_read_subvol_get (inode_t *inode, xlator_t *this, unsigned char *data,
+ unsigned char *metadata, int *event_p)
+{
+ int ret = -1;
+
+ LOCK(&inode->lock);
+ {
+ ret = __afr_inode_read_subvol_get (inode, this, data,
+ metadata, event_p);
+ }
+ UNLOCK(&inode->lock);
+
+ return ret;
+}
+
+
+int
+afr_inode_read_subvol_set (inode_t *inode, xlator_t *this, unsigned char *data,
+ unsigned char *metadata, int event)
+{
+ int ret = -1;
+
+ LOCK(&inode->lock);
+ {
+ ret = __afr_inode_read_subvol_set (inode, this, data, metadata,
+ event);
+ }
+ UNLOCK(&inode->lock);
+
+ return ret;
+}
+
+
+int
+afr_inode_read_subvol_reset (inode_t *inode, xlator_t *this)
+{
+ int ret = -1;
+
+ LOCK(&inode->lock);
+ {
+ ret = __afr_inode_read_subvol_reset (inode, this);
+ }
+ UNLOCK(&inode->lock);
+
+ return ret;
+}
+
+
+int
+afr_accused_fill (xlator_t *this, dict_t *xdata, unsigned char *accused,
+ afr_transaction_type type)
+{
+ 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;
+
+ 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;
+}
+
+
+int
+afr_accuse_smallfiles (xlator_t *this, struct afr_reply *replies,
+ unsigned char *data_accused)
+{
+ int i = 0;
+ afr_private_t *priv = NULL;
+ uint64_t maxsize = 0;
+
+ 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;
+}
+
+
+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;
+}
+
+
+
+int
+afr_refresh_selfheal_done (int ret, call_frame_t *heal, void *opaque)
+{
+ if (heal)
+ STACK_DESTROY (heal->root);
+ return 0;
+}
+
+int
+afr_inode_refresh_err (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int err = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->replies[i].valid && !local->replies[i].op_ret) {
+ err = 0;
+ goto ret;
+ }
+ }
+
+ err = afr_final_errno (local, priv);
+ret:
+ return -err;
+}
+
+
+int
+afr_refresh_selfheal_wrap (void *opaque)
+{
+ call_frame_t *frame = opaque;
+ afr_local_t *local = NULL;
+ xlator_t *this = NULL;
+ int err = 0;
+
+ local = frame->local;
+ this = frame->this;
+
+ afr_selfheal (frame->this, local->refreshinode->gfid);
+
+ afr_selfheal_unlocked_discover (frame, local->refreshinode,
+ local->refreshinode->gfid,
+ local->replies);
+
+ afr_replies_interpret (frame, this, local->refreshinode);
+
+ err = afr_inode_refresh_err (frame, this);
+
+ afr_replies_wipe (local, this->private);
+
+ local->refreshfn (frame, this, err);
+
+ return 0;
+}
+
+
+gf_boolean_t
+afr_selfheal_enabled (xlator_t *this)
+{
+ afr_private_t *priv = NULL;
+ gf_boolean_t data = _gf_false;
+
+ priv = this->private;
+
+ gf_string2boolean (priv->data_self_heal, &data);
+
+ return data || priv->metadata_self_heal || priv->entry_self_heal;
+}
+
+
+
+int
+afr_inode_refresh_done (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *heal = NULL;
+ afr_local_t *local = NULL;
+ int ret = 0;
+ int err = 0;
+
+ local = frame->local;
+
+ ret = afr_replies_interpret (frame, this, local->refreshinode);
+
+ err = afr_inode_refresh_err (frame, this);
+
+ afr_replies_wipe (local, this->private);
+
+ 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;
+}
+
+
+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)
+{
+ afr_local_t *local = NULL;
+ int call_child = (long) cookie;
+ int call_count = 0;
+
+ local = frame->local;
+
+ 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;
+}
+
+
+int
+afr_inode_refresh_subvol (call_frame_t *frame, xlator_t *this, int i,
+ inode_t *inode, dict_t *xdata)
+{
+ loc_t loc = {0, };
+ afr_private_t *priv = NULL;
+
+ priv = this->private;
+
+ 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;
+}
+
+
+int
+afr_inode_refresh_do (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = 0;
+ int i = 0;
+ dict_t *xdata = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ afr_replies_wipe (local, priv);
+
+ xdata = dict_new ();
+ if (!xdata) {
+ afr_inode_refresh_done (frame, this);
+ return 0;
+ }
+
+ if (afr_xattr_req_prepare (this, xdata) != 0) {
+ dict_unref (xdata);
+ afr_inode_refresh_done (frame, this);
+ return 0;
+ }
+
+ 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;
+}
+
+
+int
+afr_inode_refresh (call_frame_t *frame, xlator_t *this, inode_t *inode,
+ afr_inode_refresh_cbk_t refreshfn)
+{
+ afr_local_t *local = NULL;
+
+ 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;
+}
+
+
+int
+afr_xattr_req_prepare (xlator_t *this, dict_t *xattr_req)
+{
+ int i = 0;
+ afr_private_t *priv = NULL;
+ int ret = 0;
+
+ priv = this->private;
+
+ 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;
+}
+
+int
+afr_lookup_xattr_req_prepare (afr_local_t *local, xlator_t *this,
+ dict_t *xattr_req, loc_t *loc)
+{
+ int ret = -ENOMEM;
+
+ local->xattr_req = dict_new ();
+ if (!local->xattr_req)
+ goto out;
+ if (xattr_req)
+ dict_copy (xattr_req, local->xattr_req);
+
+ 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);
+ }
+
+ 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);
+ }
+
+ 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:
+ return ret;
+}
+
+
+int
+afr_hash_child (inode_t *inode, int32_t child_count, int hashmode)
+{
+ uuid_t gfid_copy = {0,};
+ pid_t pid;
+
+ if (!hashmode) {
+ return -1;
+ }
+
+ 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;
+}
+
+
+int
+afr_read_subvol_select_by_policy (inode_t *inode, xlator_t *this,
+ unsigned char *readable)
+{
+ afr_private_t *priv = NULL;
+ int read_subvol = -1;
+ int i = 0;
+
+ priv = this->private;
+
+ /* first preference - explicitly specified or local subvolume */
+ if (priv->read_child >= 0 && readable[priv->read_child])
+ return priv->read_child;
+
+ /* 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;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (readable[i])
+ return i;
+ }
+
+ /* no readable subvolumes, either split brain or all subvols down */
+
+ return -1;
+}
+
+
+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 (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;
+}
+
+
+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;
+
+ priv = this->private;
+
+ readable = alloca0 (priv->child_count);
+ data_readable = alloca0 (priv->child_count);
+ metadata_readable = alloca0 (priv->child_count);
+ intersection = alloca0 (priv->child_count);
+
+ afr_inode_read_subvol_type_get (inode, this, readable, &event, type);
+
+ afr_inode_read_subvol_get (inode, this, data_readable, metadata_readable,
+ &event);
+
+ AFR_INTERSECT (intersection, data_readable, metadata_readable,
+ priv->child_count);
+
+ 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;
+ int i = 0;
+
+ priv = this->private;
+
+ afr_matrix_cleanup (local->pending, priv->child_count);
+
+ GF_FREE (local->internal_lock.locked_nodes);
+
+ for (i = 0; local->internal_lock.inodelk[i].domain; i++) {
+ GF_FREE (local->internal_lock.inodelk[i].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.eager_lock);
+ GF_FREE (local->transaction.fop_subvols);
+ GF_FREE (local->transaction.failed_subvols);
+
+ GF_FREE (local->transaction.basename);
+ GF_FREE (local->transaction.new_basename);
+
+ 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)
+{
+ afr_private_t * priv = NULL;
+
+ if (!local)
+ return;
+
+ 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);
+
+ priv = this->private;
+
+ loc_wipe (&local->loc);
+ loc_wipe (&local->newloc);
+
+ if (local->fd)
+ fd_unref (local->fd);
+
+ if (local->xattr_req)
+ dict_unref (local->xattr_req);
+
+ if (local->dict)
+ dict_unref (local->dict);
+
+ afr_replies_wipe (local, priv);
+ GF_FREE(local->replies);
+
+ GF_FREE (local->child_up);
+
+ GF_FREE (local->read_attempted);
+
+ GF_FREE (local->readable);
+
+ if (local->inode)
+ inode_unref (local->inode);
+
+ if (local->parent)
+ inode_unref (local->parent);
+
+ if (local->parent2)
+ inode_unref (local->parent2);
+
+ if (local->refreshinode)
+ inode_unref (local->refreshinode);
+
+ { /* getxattr */
+ GF_FREE (local->cont.getxattr.name);
+ }
+
+ { /* lk */
+ GF_FREE (local->cont.lk.locked_nodes);
+ }
+
+ { /* create */
+ if (local->cont.create.fd)
+ fd_unref (local->cont.create.fd);
+ if (local->cont.create.params)
+ dict_unref (local->cont.create.params);
+ }
+
+ { /* mknod */
+ if (local->cont.mknod.params)
+ dict_unref (local->cont.mknod.params);
+ }
+
+ { /* mkdir */
+ if (local->cont.mkdir.params)
+ dict_unref (local->cont.mkdir.params);
+ }
+
+ { /* symlink */
+ if (local->cont.symlink.params)
+ dict_unref (local->cont.symlink.params);
+ }
+
+ { /* writev */
+ GF_FREE (local->cont.writev.vector);
+ if (local->cont.writev.iobref)
+ iobref_unref (local->cont.writev.iobref);
+ }
+
+ { /* setxattr */
+ if (local->cont.setxattr.dict)
+ dict_unref (local->cont.setxattr.dict);
+ }
+
+ { /* fsetxattr */
+ if (local->cont.fsetxattr.dict)
+ dict_unref (local->cont.fsetxattr.dict);
+ }
+
+ { /* removexattr */
+ GF_FREE (local->cont.removexattr.name);
+ }
+ { /* xattrop */
+ if (local->cont.xattrop.xattr)
+ dict_unref (local->cont.xattrop.xattr);
+ }
+ { /* fxattrop */
+ if (local->cont.fxattrop.xattr)
+ dict_unref (local->cont.fxattrop.xattr);
+ }
+ { /* symlink */
+ GF_FREE (local->cont.symlink.linkpath);
+ }
+
+ { /* opendir */
+ GF_FREE (local->cont.opendir.checksum);
+ }
+
+ { /* readdirp */
+ if (local->cont.readdir.dict)
+ dict_unref (local->cont.readdir.dict);
+ }
+
+ if (local->xdata_req)
+ dict_unref (local->xdata_req);
+
+ if (local->xdata_rsp)
+ dict_unref (local->xdata_rsp);
+}
+
+
+int
+afr_frame_return (call_frame_t *frame)
+{
+ afr_local_t *local = NULL;
+ int call_count = 0;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ call_count = --local->call_count;
+ }
+ UNLOCK (&frame->lock);
+
+ return call_count;
+}
+
+
+gf_boolean_t
+afr_is_entry_possibly_under_txn (afr_local_t *local, xlator_t *this)
+{
+ int i = 0;
+ int tmp = 0;
+ afr_private_t *priv = NULL;
+
+ priv = this->private;
+
+ 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;
+ }
+
+ return _gf_false;
+}
+
+
+/*
+ * 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_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_lookup_done (call_frame_t *frame, xlator_t *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;
+
+ priv = this->private;
+ local = frame->local;
+ replies = local->replies;
+
+ locked_entry = afr_is_entry_possibly_under_txn (local, this);
+
+ readable = alloca0 (priv->child_count);
+
+ afr_inode_read_subvol_get (local->loc.parent, this, readable,
+ NULL, &event);
+
+ /* 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);
+}
+
+/*
+ * 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_higher_errno (int32_t old_errno, int32_t new_errno)
+{
+ 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;
+
+ return new_errno;
+}
+
+
+int
+afr_final_errno (afr_local_t *local, afr_private_t *priv)
+{
+ int i = 0;
+ int op_errno = 0;
+ int tmp_errno = 0;
+
+ 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);
+ }
+
+ return op_errno;
+}
+
+static int
+get_pathinfo_host (char *pathinfo, char *hostname, size_t size)
+{
+ char *start = NULL;
+ char *end = NULL;
+ int ret = -1;
+ int i = 0;
+
+ if (!pathinfo)
+ goto out;
+
+ start = strchr (pathinfo, ':');
+ if (!start)
+ goto out;
+ end = strrchr (pathinfo, ':');
+ if (start == end)
+ goto out;
+
+ memset (hostname, 0, size);
+ i = 0;
+ while (++start != end)
+ hostname[i++] = *start;
+ ret = 0;
+out:
+ return ret;
+}
+
+int
+afr_local_pathinfo (char *pathinfo, gf_boolean_t *local)
+{
+ int ret = 0;
+ char pathinfohost[1024] = {0};
+ char localhost[1024] = {0};
+ xlator_t *this = THIS;
+
+ *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;
+ }
+
+ ret = gethostname (localhost, sizeof (localhost));
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "gethostname() failed, "
+ "reason: %s", strerror (errno));
+ goto out;
+ }
+
+ if (!strcmp (localhost, pathinfohost))
+ *local = _gf_true;
+out:
+ return ret;
+}
+
+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 ret = 0;
+ char *pathinfo = NULL;
+ gf_boolean_t is_local = _gf_false;
+ afr_private_t *priv = NULL;
+ int32_t child_index = -1;
+
+ if (op_ret != 0) {
+ goto out;
+ }
+
+ priv = this->private;
+ child_index = (int32_t)(long)cookie;
+
+ 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;
+ }
+
+ /*
+ * 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:
+ STACK_DESTROY(frame->root);
+ return 0;
+}
+
+static void
+afr_attempt_local_discovery (xlator_t *this, int32_t child_index)
+{
+ call_frame_t *newframe = NULL;
+ loc_t tmploc = {0,};
+ afr_private_t *priv = this->private;
+
+ newframe = create_frame(this,this->ctx->pool);
+ if (!newframe) {
+ return;
+ }
+
+ 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);
+}
+
+
+int
+afr_lookup_selfheal_wrap (void *opaque)
+{
+ call_frame_t *frame = opaque;
+ afr_local_t *local = NULL;
+ xlator_t *this = NULL;
+ inode_t *inode = NULL;
+
+ local = frame->local;
+ this = frame->this;
+
+ afr_selfheal_name (frame->this, local->loc.pargfid, local->loc.name);
+
+ afr_replies_wipe (local, this->private);
+
+ 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);
+
+ return 0;
+}
+
+
+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_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;
+
+ 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 != -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);
+ }
+
+ return 0;
+}
+
+
+
+static void
+afr_discover_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = -1;
+ int op_errno = 0;
+ int read_subvol = 0;
+
+ priv = this->private;
+ local = frame->local;
+
+ 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;
+ }
+
+ op_errno = afr_final_errno (frame->local, this->private);
+
+ if (local->op_ret < 0) {
+ local->op_errno = op_errno;
+ local->op_ret = -1;
+ goto unwind;
+ }
+
+ afr_replies_interpret (frame, this, local->inode);
+
+ 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);
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (!local->replies[i].valid ||
+ local->replies[i].op_ret == -1)
+ continue;
+ read_subvol = i;
+ break;
+ }
+ }
+
+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);
+}
+
+
+int
+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;
+
+ 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 != -1) {
+ local->replies[child_index].poststat = *buf;
+ local->replies[child_index].postparent = *postparent;
+ if (xdata)
+ local->replies[child_index].xdata = dict_ref (xdata);
+ }
+
+ 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_discover_done (frame, this);
+ }
+
+ return 0;
+}
+
+
+int
+afr_discover_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;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (err) {
+ 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;
+ }
+
+ 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;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (lookup, frame, -1, local->op_errno, 0, 0, 0, 0);
+ return 0;
+}
+
+
+int
+afr_discover (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
+{
+ int op_errno = ENOMEM;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int event = 0;
+
+ priv = this->private;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ if (!local->call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
+
+ 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);
+
+ 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);
+
+ if (uuid_is_null (loc->inode->gfid)) {
+ afr_discover_do (frame, this, 0);
+ return 0;
+ }
+
+ afr_read_subvol_get (loc->inode, this, NULL, &event,
+ AFR_DATA_TRANSACTION);
+
+ if (event != local->event_generation)
+ afr_inode_refresh (frame, this, loc->inode, afr_discover_do);
+ else
+ afr_discover_do (frame, this, 0);
+
+ 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;
+
+ local = frame->local;
+ priv = this->private;
+
+ 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;
+ }
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_lookup_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->lookup,
+ &local->loc, local->xattr_req);
+ if (!--call_count)
+ break;
+ }
+ }
+ return 0;
+out:
+ AFR_STACK_UNWIND (lookup, frame, -1, local->op_errno, 0, 0, 0, 0);
+ return 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:
+ AFR_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
+
+ return 0;
+}
+
+
+/* {{{ 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)
+{
+ afr_private_t * priv = NULL;
+ 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);
+
+ priv = this->private;
+
+ ret = __fd_ctx_get (fd, this, &ctx);
+
+ if (ret == 0)
+ goto out;
+
+ fd_ctx = GF_CALLOC (1, sizeof (afr_fd_ctx_t),
+ gf_afr_mt_afr_fd_ctx_t);
+ if (!fd_ctx) {
+ 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,
+ gf_afr_mt_int32_t);
+ if (!fd_ctx->opened_on) {
+ ret = -ENOMEM;
+ 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);
+ if (!fd_ctx->lock_piggyback) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ fd_ctx->lock_acquired = GF_CALLOC (sizeof (*fd_ctx->lock_acquired),
+ priv->child_count,
+ gf_afr_mt_char);
+ if (!fd_ctx->lock_acquired) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ pthread_mutex_init (&fd_ctx->delay_lock, NULL);
+
+ INIT_LIST_HEAD (&fd_ctx->eager_locked);
+
+ ret = __fd_ctx_set (fd, this, (uint64_t)(long) fd_ctx);
+ if (ret)
+ gf_log (this->name, GF_LOG_DEBUG,
+ "failed to set fd ctx (%p)", fd);
+out:
+ return ret;
+}
+
+
+int
+afr_fd_ctx_set (xlator_t *this, fd_t *fd)
+{
+ int ret = -1;
+
+ LOCK (&fd->lock);
+ {
+ ret = __afr_fd_ctx_set (this, fd);
+ }
+ UNLOCK (&fd->lock);
+
+ return ret;
+}
+
+/* {{{ flush */
+
+int
+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;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret != -1) {
+ 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);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (flush, frame, local->op_ret,
+ local->op_errno, local->xdata_rsp);
+
+ return 0;
+}
+
+static int
+afr_flush_wrapper (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
+{
+ int i = 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = -1;
+
+ priv = this->private;
+ 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_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->flush,
+ local->fd, xdata);
+ if (!--call_count)
+ break;
+
+ }
+ }
+
+ return 0;
+}
+
+int
+afr_flush (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ call_stub_t *stub = NULL;
+ int op_errno = ENOMEM;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ if (!local->call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
+
+ local->fd = fd_ref(fd);
+
+ stub = fop_flush_stub (frame, afr_flush_wrapper, fd, xdata);
+ if (!stub)
+ goto out;
+
+ afr_delayed_changelog_wake_resume (this, fd, stub);
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (flush, frame, -1, op_errno, NULL);
+ return 0;
+}
+
+/* }}} */
+
+
+int
+afr_cleanup_fd_ctx (xlator_t *this, fd_t *fd)
+{
+ uint64_t ctx = 0;
+ afr_fd_ctx_t *fd_ctx = NULL;
+ int ret = 0;
+ int i = 0;
+
+ ret = fd_ctx_get (fd, this, &ctx);
+ if (ret < 0)
+ goto out;
+
+ fd_ctx = (afr_fd_ctx_t *)(long) ctx;
+
+ if (fd_ctx) {
+ //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));
+
+ for (i = 0; i < AFR_NUM_CHANGE_LOGS; i++)
+ GF_FREE (fd_ctx->pre_op_done[i]);
+
+ GF_FREE (fd_ctx->opened_on);
+
+ GF_FREE (fd_ctx->lock_piggyback);
+
+ GF_FREE (fd_ctx->lock_acquired);
+
+ pthread_mutex_destroy (&fd_ctx->delay_lock);
+
+ GF_FREE (fd_ctx);
+ }
+
+out:
+ return 0;
+}
+
+
+int
+afr_release (xlator_t *this, fd_t *fd)
+{
+ afr_cleanup_fd_ctx (this, fd);
+
+ return 0;
+}
+
+
+/* {{{ 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)
+{
+ afr_local_t *local = NULL;
+ int call_count = -1;
+ int child_index = (long) cookie;
+ int read_subvol = 0;
+ call_stub_t *stub = NULL;
+
+ local = frame->local;
+
+ read_subvol = afr_data_subvol_get (local->inode, this, 0, 0);
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0) {
+ if (local->op_ret == -1) {
+ local->op_ret = 0;
+
+ local->cont.inode_wfop.prebuf = *prebuf;
+ local->cont.inode_wfop.postbuf = *postbuf;
+
+ if (xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ }
+
+ 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) {
+ /* 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;
+}
+
+
+int
+afr_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync,
+ dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ call_count = local->call_count;
+ if (!call_count) {
+ op_errno = ENOTCONN;
+ goto out;
+ }
+
+ local->fd = fd_ref (fd);
+
+ if (afr_fd_has_witnessed_unstable_write (this, fd)) {
+ /* don't care. we only wanted to CLEAR the bit */
+ }
+
+ local->inode = inode_ref (fd->inode);
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_fsync_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->fsync,
+ fd, datasync, xdata);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL);
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ fsync */
+
+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;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0) {
+ local->op_ret = 0;
+ if (!local->xdata_rsp && xdata)
+ 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 (fsyncdir, frame, local->op_ret,
+ local->op_errno, local->xdata_rsp);
+
+ return 0;
+}
+
+
+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_local_t *local = NULL;
+ int i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_fsyncdir_cbk,
+ priv->children[i],
+ priv->children[i]->fops->fsyncdir,
+ fd, datasync, xdata);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (fsyncdir, frame, -1, op_errno, NULL);
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ xattrop */
+
+int32_t
+afr_xattrop_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ dict_t *xattr, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ 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;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (xattrop, frame, local->op_ret, local->op_errno,
+ local->cont.xattrop.xattr, local->xdata_rsp);
+
+ return 0;
+}
+
+
+int32_t
+afr_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_xattrop_cbk,
+ priv->children[i],
+ priv->children[i]->fops->xattrop,
+ loc, optype, xattr, xdata);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (xattrop, frame, -1, op_errno, NULL, NULL);
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ fxattrop */
+
+int32_t
+afr_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)
+{
+ afr_local_t *local = NULL;
+
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0) {
+ 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;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (fxattrop, frame, local->op_ret, local->op_errno,
+ local->cont.fxattrop.xattr, local->xdata_rsp);
+
+ return 0;
+}
+
+
+int32_t
+afr_fxattrop (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = 0;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_fxattrop_cbk,
+ priv->children[i],
+ priv->children[i]->fops->fxattrop,
+ fd, optype, xattr, xdata);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (fxattrop, frame, -1, op_errno, NULL, NULL);
+
+ return 0;
+}
+
+/* }}} */
+
+
+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_local_t *local = NULL;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0)
+ local->op_ret = 0;
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (inodelk, frame, local->op_ret,
+ local->op_errno, xdata);
+
+ return 0;
+}
+
+
+int32_t
+afr_inodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, int32_t cmd,
+ struct gf_flock *flock, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_inodelk_cbk,
+ priv->children[i],
+ priv->children[i]->fops->inodelk,
+ volume, loc, cmd, flock, xdata);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ 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_local_t *local = NULL;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0)
+ local->op_ret = 0;
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (finodelk, frame, local->op_ret,
+ local->op_errno, xdata);
+
+ return 0;
+}
+
+
+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_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_finodelk_cbk,
+ priv->children[i],
+ priv->children[i]->fops->finodelk,
+ volume, fd, cmd, flock, xdata);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (finodelk, frame, -1, op_errno, NULL);
+
+ return 0;
+}
+
+
+int32_t
+afr_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;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0)
+ local->op_ret = 0;
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (entrylk, frame, local->op_ret,
+ local->op_errno, xdata);
+
+ return 0;
+}
+
+
+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 i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = 0;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_entrylk_cbk,
+ priv->children[i],
+ priv->children[i]->fops->entrylk,
+ volume, loc, basename, cmd, type, xdata);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (entrylk, frame, -1, op_errno, NULL);
+
+ return 0;
+}
+
+
+
+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;
+ int call_count = -1;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (op_ret == 0)
+ local->op_ret = 0;
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (fentrylk, frame, local->op_ret,
+ local->op_errno, xdata);
+
+ return 0;
+}
+
+
+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 i = 0;
+ int32_t call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_fentrylk_cbk,
+ priv->children[i],
+ priv->children[i]->fops->fentrylk,
+ volume, fd, basename, cmd, type, xdata);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (fentrylk, frame, -1, op_errno, NULL);
+
+ return 0;
+}
+
+
+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_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, local->xdata_rsp);
+
+ return 0;
+}
+
+
+int
+afr_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+{
+ afr_local_t * local = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ int call_count = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ 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]) {
+ STACK_WIND (frame, afr_statfs_cbk,
+ priv->children[i],
+ priv->children[i]->fops->statfs,
+ loc, xdata);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (statfs, frame, -1, op_errno, NULL, NULL);
+
+ return 0;
+}
+
+
+int32_t
+afr_lk_unlock_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;
+ int call_count = -1;
+
+ local = frame->local;
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (lk, frame, local->op_ret, local->op_errno,
+ lock, xdata);
+
+ return 0;
+}
+
+
+int32_t
+afr_lk_unlock (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+ int i = 0;
+ int call_count = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_locked_nodes_count (local->cont.lk.locked_nodes,
+ priv->child_count);
+
+ if (call_count == 0) {
+ AFR_STACK_UNWIND (lk, frame, local->op_ret, local->op_errno,
+ &local->cont.lk.ret_flock, NULL);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ local->cont.lk.user_flock.l_type = F_UNLCK;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->cont.lk.locked_nodes[i]) {
+ STACK_WIND (frame, afr_lk_unlock_cbk,
+ priv->children[i],
+ priv->children[i]->fops->lk,
+ local->fd, F_SETLK,
+ &local->cont.lk.user_flock, NULL);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_lk_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;
+ int child_index = -1;
+/* int ret = 0; */
+
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ if (!child_went_down (op_ret, op_errno) && (op_ret == -1)) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
+
+ afr_lk_unlock (frame, this);
+ return 0;
+ }
+
+ if (op_ret == 0) {
+ local->op_ret = 0;
+ local->op_errno = 0;
+ local->cont.lk.locked_nodes[child_index] = 1;
+ local->cont.lk.ret_flock = *lock;
+ }
+
+ child_index++;
+
+ if (child_index < priv->child_count) {
+ STACK_WIND_COOKIE (frame, afr_lk_cbk, (void *) (long) child_index,
+ priv->children[child_index],
+ priv->children[child_index]->fops->lk,
+ local->fd, local->cont.lk.cmd,
+ &local->cont.lk.user_flock, xdata);
+ } else if (local->op_ret == -1) {
+ /* all nodes have gone down */
+
+ AFR_STACK_UNWIND (lk, frame, -1, ENOTCONN,
+ &local->cont.lk.ret_flock, NULL);
+ } else {
+ AFR_STACK_UNWIND (lk, frame, local->op_ret, local->op_errno,
+ &local->cont.lk.ret_flock, NULL);
+ }
+
+ return 0;
+}
+
+
+int
+afr_lk (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int32_t cmd, struct gf_flock *flock, dict_t *xdata)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+ int32_t op_errno = ENOMEM;
+
+ priv = this->private;
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+
+ local->cont.lk.locked_nodes = GF_CALLOC (priv->child_count,
+ sizeof (*local->cont.lk.locked_nodes),
+ gf_afr_mt_char);
+
+ if (!local->cont.lk.locked_nodes) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ local->fd = fd_ref (fd);
+ local->cont.lk.cmd = cmd;
+ local->cont.lk.user_flock = *flock;
+ local->cont.lk.ret_flock = *flock;
+
+ STACK_WIND_COOKIE (frame, afr_lk_cbk, (void *) (long) 0,
+ priv->children[i],
+ priv->children[i]->fops->lk,
+ fd, cmd, flock, xdata);
+
+ return 0;
+out:
+ AFR_STACK_UNWIND (lk, frame, -1, op_errno, NULL, NULL);
+
+ return 0;
+}
+
+int
+afr_forget (xlator_t *this, inode_t *inode)
+{
+ return 0;
+}
+
+int
+afr_priv_dump (xlator_t *this)
+{
+ afr_private_t *priv = NULL;
+ char key_prefix[GF_DUMP_MAX_BUF_LEN];
+ char key[GF_DUMP_MAX_BUF_LEN];
+ int i = 0;
+
+
+ GF_ASSERT (this);
+ priv = this->private;
+
+ GF_ASSERT (priv);
+ 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);
+ for (i = 0; i < priv->child_count; i++) {
+ sprintf (key, "child_up[%d]", i);
+ gf_proc_dump_write(key, "%d", priv->child_up[i]);
+ sprintf (key, "pending_key[%d]", i);
+ gf_proc_dump_write(key, "%s", priv->pending_key[i]);
+ }
+ gf_proc_dump_write("data_self_heal", "%s", priv->data_self_heal);
+ gf_proc_dump_write("metadata_self_heal", "%d", priv->metadata_self_heal);
+ gf_proc_dump_write("entry_self_heal", "%d", priv->entry_self_heal);
+ gf_proc_dump_write("data_change_log", "%d", priv->data_change_log);
+ gf_proc_dump_write("metadata_change_log", "%d", priv->metadata_change_log);
+ gf_proc_dump_write("entry-change_log", "%d", priv->entry_change_log);
+ gf_proc_dump_write("read_child", "%d", priv->read_child);
+ gf_proc_dump_write("favorite_child", "%d", priv->favorite_child);
+ gf_proc_dump_write("wait_count", "%u", priv->wait_count);
+
+ return 0;
+}
+
+
+/**
+ * find_child_index - find the child's index in the array of subvolumes
+ * @this: AFR
+ * @child: child
+ */
+
+static int
+find_child_index (xlator_t *this, xlator_t *child)
+{
+ afr_private_t *priv = NULL;
+ int i = -1;
+
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if ((xlator_t *) child == priv->children[i])
+ break;
+ }
+
+ return i;
+}
+
+int32_t
+afr_notify (xlator_t *this, int32_t event,
+ void *data, void *data2)
+{
+ afr_private_t *priv = NULL;
+ int i = -1;
+ int up_children = 0;
+ int down_children = 0;
+ int propagate = 0;
+ int had_heard_from_all = 0;
+ int have_heard_from_all = 0;
+ int idx = -1;
+ int ret = -1;
+ int call_psh = 0;
+ int up_child = -1;
+ dict_t *input = NULL;
+ dict_t *output = NULL;
+
+ priv = this->private;
+
+ 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]) {
+ had_heard_from_all = 0;
+ }
+ }
+
+ /* parent xlators dont need to know about every child_up, child_down
+ * because of afr ha. If all subvolumes go down, child_down has
+ * to be triggered. In that state when 1 subvolume comes up child_up
+ * needs to be triggered. dht optimizes revalidate lookup by sending
+ * it only to one of its subvolumes. When child up/down happens
+ * for afr's subvolumes dht should be notified by child_modified. The
+ * subsequent revalidate lookup happens on all the dht's subvolumes
+ * which triggers afr self-heals if any.
+ */
+ idx = find_child_index (this, data);
+ if (idx < 0) {
+ gf_log (this->name, GF_LOG_ERROR, "Received child_up "
+ "from invalid subvolume");
+ goto out;
+ }
+
+ switch (event) {
+ case GF_EVENT_CHILD_UP:
+ LOCK (&priv->lock);
+ {
+ /*
+ * This only really counts if the child was never up
+ * (value = -1) or had been down (value = 0). See
+ * comment at GF_EVENT_CHILD_DOWN for a more detailed
+ * explanation.
+ */
+ if (priv->child_up[idx] != 1) {
+ priv->up_count++;
+ priv->event_generation++;
+ }
+ priv->child_up[idx] = 1;
+
+ call_psh = 1;
+ up_child = idx;
+ for (i = 0; i < priv->child_count; i++)
+ if (priv->child_up[i] == 1)
+ up_children++;
+ if (up_children == 1) {
+ gf_log (this->name, GF_LOG_INFO,
+ "Subvolume '%s' came back up; "
+ "going online.", ((xlator_t *)data)->name);
+ } else {
+ event = GF_EVENT_CHILD_MODIFIED;
+ }
+
+ priv->last_event[idx] = event;
+ }
+ UNLOCK (&priv->lock);
+
+ break;
+
+ case GF_EVENT_CHILD_DOWN:
+ LOCK (&priv->lock);
+ {
+ /*
+ * If a brick is down when we start, we'll get a
+ * CHILD_DOWN to indicate its initial state. There
+ * was never a CHILD_UP in this case, so if we
+ * increment "down_count" the difference between than
+ * and "up_count" will no longer be the number of
+ * children that are currently up. This has serious
+ * implications e.g. for quorum enforcement, so we
+ * don't increment these values unless the event
+ * represents an actual state transition between "up"
+ * (value = 1) and anything else.
+ */
+ if (priv->child_up[idx] == 1) {
+ priv->down_count++;
+ priv->event_generation++;
+ }
+ priv->child_up[idx] = 0;
+
+ for (i = 0; i < priv->child_count; i++)
+ if (priv->child_up[i] == 0)
+ down_children++;
+ if (down_children == priv->child_count) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "All subvolumes are down. Going offline "
+ "until atleast one of them comes back up.");
+ } else {
+ event = GF_EVENT_CHILD_MODIFIED;
+ }
+
+ priv->last_event[idx] = event;
+ }
+ UNLOCK (&priv->lock);
+
+ break;
+
+ case GF_EVENT_CHILD_CONNECTING:
+ LOCK (&priv->lock);
+ {
+ priv->last_event[idx] = event;
+ }
+ UNLOCK (&priv->lock);
+
+ break;
+
+ 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;
+
+ default:
+ propagate = 1;
+ break;
+ }
+
+ /* have all subvolumes reported status once by now? */
+ have_heard_from_all = 1;
+ for (i = 0; i < priv->child_count; i++) {
+ if (!priv->last_event[i])
+ have_heard_from_all = 0;
+ }
+
+ /* if all subvols have reported status, no need to hide anything
+ or wait for anything else. Just propagate blindly */
+ if (have_heard_from_all)
+ propagate = 1;
+
+ if (!had_heard_from_all && have_heard_from_all) {
+ /* This is the first event which completes aggregation
+ of events from all subvolumes. If at least one subvol
+ had come up, propagate CHILD_UP, but only this time
+ */
+ event = GF_EVENT_CHILD_DOWN;
+
+ LOCK (&priv->lock);
+ {
+ 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;
+ break;
+ }
+
+ if (priv->last_event[i] ==
+ GF_EVENT_CHILD_CONNECTING) {
+ event = GF_EVENT_CHILD_CONNECTING;
+ /* continue to check other events for CHILD_UP */
+ }
+ }
+ }
+ UNLOCK (&priv->lock);
+ }
+
+ ret = 0;
+ if (propagate)
+ ret = default_notify (this, event, data);
+
+ if (call_psh && priv->shd.iamshd) {
+ afr_selfheal_childup (this, up_child);
+ }
+out:
+ return ret;
+}
+
+
+int
+afr_local_init (afr_local_t *local, afr_private_t *priv, int32_t *op_errno)
+{
+ 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);
+ if (!local->child_up) {
+ if (op_errno)
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ memcpy (local->child_up, priv->child_up,
+ sizeof (*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->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 -1;
+}
+
+int
+afr_internal_lock_init (afr_internal_lock_t *lk, size_t child_count,
+ transaction_lk_type_t lk_type)
+{
+ int ret = -ENOMEM;
+
+ lk->locked_nodes = GF_CALLOC (sizeof (*lk->locked_nodes),
+ child_count, gf_afr_mt_char);
+ if (NULL == lk->locked_nodes)
+ goto out;
+
+ lk->lower_locked_nodes = GF_CALLOC (sizeof (*lk->lower_locked_nodes),
+ child_count, gf_afr_mt_char);
+ if (NULL == lk->lower_locked_nodes)
+ goto out;
+
+ lk->lock_op_ret = -1;
+ lk->lock_op_errno = EUCLEAN;
+ lk->transaction_lk_type = lk_type;
+
+ ret = 0;
+out:
+ return ret;
+}
+
+void
+afr_matrix_cleanup (int32_t **matrix, unsigned int m)
+{
+ int i = 0;
+
+ if (!matrix)
+ goto out;
+ for (i = 0; i < m; i++) {
+ GF_FREE (matrix[i]);
+ }
+
+ GF_FREE (matrix);
+out:
+ return;
+}
+
+int32_t**
+afr_matrix_create (unsigned int m, unsigned int n)
+{
+ int32_t **matrix = NULL;
+ int i = 0;
+
+ matrix = GF_CALLOC (sizeof (*matrix), m, gf_afr_mt_int32_t);
+ if (!matrix)
+ goto out;
+
+ for (i = 0; i < m; i++) {
+ matrix[i] = GF_CALLOC (sizeof (*matrix[i]), n,
+ gf_afr_mt_int32_t);
+ if (!matrix[i])
+ goto out;
+ }
+ return matrix;
+out:
+ afr_matrix_cleanup (matrix, m);
+ return NULL;
+}
+
+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;
+ int ret = -ENOMEM;
+ afr_private_t *priv = NULL;
+
+ priv = this->private;
+ ret = afr_internal_lock_init (&local->internal_lock, priv->child_count,
+ AFR_TRANSACTION_LK);
+ 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_COUNT (local->child_up, priv->child_count);
+ if (priv->optimistic_change_log && child_up_count == priv->child_count)
+ local->optimistic_change_log = 1;
+
+ local->pre_op_compat = priv->pre_op_compat;
+
+ local->transaction.eager_lock =
+ GF_CALLOC (sizeof (*local->transaction.eager_lock),
+ priv->child_count,
+ gf_afr_mt_int32_t);
+
+ if (!local->transaction.eager_lock)
+ 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;
+
+ INIT_LIST_HEAD (&local->transaction.eager_locked);
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
+void
+afr_set_low_priority (call_frame_t *frame)
+{
+ frame->root->pid = LOW_PRIO_PROC_PID;
+}
+
+
+gf_boolean_t
+afr_have_quorum (char *logname, afr_private_t *priv)
+{
+ unsigned int quorum = 0;
+
+ GF_VALIDATE_OR_GOTO(logname,priv,out);
+
+ quorum = priv->quorum_count;
+ if (quorum != AFR_QUORUM_AUTO) {
+ return (priv->up_count >= (priv->down_count + quorum));
+ }
+
+ quorum = priv->child_count / 2 + 1;
+ if (priv->up_count >= (priv->down_count + quorum)) {
+ return _gf_true;
+ }
+
+ /*
+ * Special case for even numbers of nodes: if we have exactly half
+ * and that includes the first ("senior-most") node, then that counts
+ * as quorum even if it wouldn't otherwise. This supports e.g. N=2
+ * while preserving the critical property that there can only be one
+ * such group.
+ */
+ if ((priv->child_count % 2) == 0) {
+ quorum = priv->child_count / 2;
+ if (priv->up_count >= (priv->down_count + quorum)) {
+ if (priv->child_up[0]) {
+ return _gf_true;
+ }
+ }
+ }
+
+out:
+ return _gf_false;
+}
+
+void
+afr_priv_destroy (afr_private_t *priv)
+{
+ int i = 0;
+
+ if (!priv)
+ goto out;
+ inode_unref (priv->root_inode);
+ GF_FREE (priv->last_event);
+ if (priv->pending_key) {
+ for (i = 0; i < priv->child_count; i++)
+ GF_FREE (priv->pending_key[i]);
+ }
+ GF_FREE (priv->pending_key);
+ GF_FREE (priv->children);
+ GF_FREE (priv->child_up);
+ LOCK_DESTROY (&priv->lock);
+
+ GF_FREE (priv);
+out:
+ return;
+}
+
+int
+xlator_subvolume_count (xlator_t *this)
+{
+ int i = 0;
+ xlator_list_t *list = NULL;
+
+ for (list = this->children; list; list = list->next)
+ 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 fd3fc1ba7..fa1da3958 100644
--- a/xlators/cluster/afr/src/afr-dir-read.c
+++ b/xlators/cluster/afr/src/afr-dir-read.c
@@ -1,20 +1,11 @@
/*
- Copyright (c) 2007-2009 Z RESEARCH, Inc. <http://www.zresearch.com>
- 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/>.
+ 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.
*/
@@ -24,6 +15,7 @@
#include <sys/time.h>
#include <stdlib.h>
#include <signal.h>
+#include <string.h>
#ifndef _CONFIG_H
#define _CONFIG_H
@@ -42,304 +34,395 @@
#include "common-utils.h"
#include "compat-errno.h"
#include "compat.h"
+#include "checksum.h"
#include "afr.h"
+#include "afr-transaction.h"
int32_t
afr_opendir_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- fd_t *fd)
+ xlator_t *this, int32_t op_ret, int32_t op_errno,
+ fd_t *fd, dict_t *xdata)
{
- afr_local_t * local = NULL;
+ afr_local_t *local = NULL;
+ int call_count = -1;
+ int32_t child_index = 0;
+ afr_fd_ctx_t *fd_ctx = NULL;
+
+ local = frame->local;
+ fd_ctx = local->fd_ctx;
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ 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;
+ fd_ctx->opened_on[child_index] = AFR_FD_OPENED;
+ if (!local->xdata_rsp && xdata)
+ local->xdata_rsp = dict_ref (xdata);
+ }
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0)
+ AFR_STACK_UNWIND (opendir, frame, local->op_ret,
+ local->op_errno, local->fd, NULL);
+ return 0;
+}
- int call_count = -1;
- LOCK (&frame->lock);
- {
- local = frame->local;
+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 i = 0;
+ int call_count = -1;
+ int32_t op_errno = ENOMEM;
+ afr_fd_ctx_t *fd_ctx = NULL;
- if (op_ret == 0)
- local->op_ret = 0;
+ priv = this->private;
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- call_count = afr_frame_return (frame);
+ fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!fd_ctx)
+ goto out;
- if (call_count == 0) {
- AFR_STACK_UNWIND (frame, local->op_ret,
- local->op_errno, local->fd);
- }
+ loc_copy (&local->loc, loc);
+
+ local->fd = fd_ref (fd);
+ local->fd_ctx = fd_ctx;
+
+ call_count = local->call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_opendir_cbk,
+ (void*) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->opendir,
+ loc, fd, NULL);
+
+ if (!--call_count)
+ break;
+ }
+ }
return 0;
+out:
+ AFR_STACK_UNWIND (opendir, frame, -1, op_errno, fd, NULL);
+ return 0;
}
-int32_t
-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;
+#define BACKEND_D_OFF_BITS 63
+#define PRESENT_D_OFF_BITS 63
- int ret = -1;
- int call_count = -1;
+#define ONE 1ULL
+#define MASK (~0ULL)
+#define PRESENT_MASK (MASK >> (64 - PRESENT_D_OFF_BITS))
+#define BACKEND_MASK (MASK >> (64 - BACKEND_D_OFF_BITS))
- int32_t op_ret = -1;
- int32_t op_errno = 0;
+#define TOP_BIT (ONE << (PRESENT_D_OFF_BITS - 1))
+#define SHIFT_BITS (max (0, (BACKEND_D_OFF_BITS - PRESENT_D_OFF_BITS + 1)))
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+static uint64_t
+afr_bits_for (uint64_t num)
+{
+ uint64_t bits = 0, ctrl = 1;
- priv = this->private;
+ while (ctrl < num) {
+ ctrl *= 2;
+ bits ++;
+ }
- child_count = priv->child_count;
+ return bits;
+}
- ALLOC_OR_GOTO (local, afr_local_t, out);
- ret = AFR_LOCAL_INIT (local, priv);
- if (ret < 0) {
- op_errno = -ret;
+int
+afr_itransform (xlator_t *this, int subvol, uint64_t x, uint64_t *y_p)
+{
+ 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;
+ }
+
+ conf = this->private;
+ if (!conf)
+ goto out;
+
+ max = conf->child_count;
+ cnt = subvol;
+
+ if (max == 1) {
+ y = x;
goto out;
}
- frame->local = local;
- local->fd = fd_ref (fd);
+ max_bits = afr_bits_for (max);
- call_count = local->call_count;
-
- for (i = 0; i < child_count; i++) {
- if (local->child_up[i]) {
- STACK_WIND (frame, afr_opendir_cbk,
- priv->children[i],
- priv->children[i]->fops->opendir,
- loc, fd);
+ hi_mask = ~(PRESENT_MASK >> (max_bits + 1));
- if (!--call_count)
- break;
- }
- }
+ 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);
+ }
- op_ret = 0;
out:
- if (op_ret == -1) {
- AFR_STACK_UNWIND (frame, op_ret, op_errno, fd);
- }
+ if (y_p)
+ *y_p = y;
- return 0;
+ 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
- */
-
-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 *buf)
+int
+afr_deitransform (xlator_t *this, uint64_t y, int *subvol_p,
+ uint64_t *x_p)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
+ 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;
+
+ conf = this->private;
+ max = conf->child_count;
+
+ if (max == 1) {
+ x = y;
+ cnt = 0;
+ goto out;
+ }
- int unwind = 1;
- int last_tried = -1;
- int this_try = -1;
+ if (y & TOP_BIT) {
+ /* HUGE d_off */
+ max_bits = afr_bits_for (max);
+ off_mask = (MASK << max_bits);
+ host_mask = ~(off_mask);
- priv = this->private;
- children = priv->children;
+ x = ((y & ~TOP_BIT) & off_mask) << SHIFT_BITS;
- local = frame->local;
+ cnt = y & host_mask;
+ } else {
+ /* small d_off */
+ cnt = y % max;
+ x = y / max;
+ }
- if (op_ret == -1) {
- last_tried = local->cont.readdir.last_tried;
+out:
+ subvol = cnt;
- if (all_tried (last_tried, priv->child_count)) {
- goto out;
- }
+ if (subvol_p)
+ *subvol_p = subvol;
- this_try = ++local->cont.readdir.last_tried;
- unwind = 0;
+ if (x_p)
+ *x_p = x;
- STACK_WIND (frame, afr_readdir_cbk,
- children[this_try],
- children[this_try]->fops->readdir,
- local->fd, local->cont.readdir.size,
- local->cont.readdir.offset);
- }
+ return 0;
+}
-out:
- if (unwind) {
- AFR_STACK_UNWIND (frame, op_ret, op_errno, buf);
- }
- return 0;
+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;
+ 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;
+ }
+
+ list_del_init (&entry->list);
+ afr_itransform (THIS, subvol, entry->d_off, &entry->d_off);
+ list_add_tail (&entry->list, &entries->list);
+
+ if (entry->inode) {
+ gen = 0;
+ afr_inode_read_subvol_get (entry->inode, THIS,
+ data_readable,
+ metadata_readable, &gen);
+
+ if (gen != priv->event_generation ||
+ !data_readable[subvol] ||
+ !metadata_readable[subvol]) {
+
+ inode_unref (entry->inode);
+ entry->inode = NULL;
+ }
+ }
+ }
}
int32_t
-afr_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset)
+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;
+ afr_local_t *local = NULL;
+ gf_dirent_t entries;
- int ret = -1;
+ INIT_LIST_HEAD (&entries.list);
- int32_t op_ret = -1;
- int32_t op_errno = 0;
+ local = frame->local;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- children = priv->children;
+ 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;
- ALLOC_OR_GOTO (local, afr_local_t, out);
- ret = AFR_LOCAL_INIT (local, priv);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
-
- frame->local = local;
-
- call_child = afr_first_up_child (priv);
- if (call_child == -1) {
- op_errno = ENOTCONN;
- gf_log (this->name, GF_LOG_ERROR,
- "no child is up :(");
- goto out;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
}
- local->cont.readdir.last_tried = call_child;
-
- local->fd = fd_ref (fd);
- local->cont.readdir.size = size;
- local->cont.readdir.offset = offset;
+ if (op_ret >= 0)
+ afr_readdir_transform_entries (subvol_entries, (long) cookie,
+ &entries, local->fd);
- STACK_WIND (frame, afr_readdir_cbk,
- children[call_child], children[call_child]->fops->readdir,
- fd, size, offset);
+ AFR_STACK_UNWIND (readdir, frame, op_ret, op_errno, &entries, xdata);
- op_ret = 0;
-out:
- if (op_ret == -1) {
- AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
- }
- return 0;
+ return 0;
}
-int32_t
-afr_getdents_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno,
- dir_entry_t *entry, int32_t count)
+int
+afr_readdir_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
- int unwind = 1;
- int last_tried = -1;
- int this_try = -1;
+ priv = this->private;
+ local = frame->local;
- priv = this->private;
- children = priv->children;
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (readdir, frame, local->op_ret,
+ local->op_errno, 0, 0);
+ return 0;
+ }
- local = frame->local;
+ if (local->op == GF_FOP_READDIR)
+ STACK_WIND_COOKIE (frame, afr_readdir_cbk,
+ (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_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;
+}
- if (op_ret == -1) {
- last_tried = local->cont.getdents.last_tried;
- if (all_tried (last_tried, priv->child_count)) {
- goto out;
- }
+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;
- this_try = ++local->cont.getdents.last_tried;
- unwind = 0;
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- STACK_WIND (frame, afr_getdents_cbk,
- children[this_try],
- children[this_try]->fops->getdents,
- local->fd, local->cont.getdents.size,
- local->cont.getdents.offset, local->cont.getdents.flag);
+ 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 (unwind) {
- AFR_STACK_UNWIND (frame, op_ret, op_errno, entry, count);
- }
-
- return 0;
+ AFR_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL);
+ return 0;
}
int32_t
-afr_getdents (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset, int32_t flag)
+afr_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+ off_t offset, 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;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- children = priv->children;
+ afr_do_readdir (frame, this, fd, size, offset, GF_FOP_READDIR, xdata);
- ALLOC_OR_GOTO (local, afr_local_t, out);
-
- call_child = afr_first_up_child (priv);
- if (call_child == -1) {
- op_errno = ENOTCONN;
- gf_log (this->name, GF_LOG_ERROR,
- "no child is up :(");
- goto out;
- }
+ return 0;
+}
- local->cont.getdents.last_tried = call_child;
- local->fd = fd_ref (fd);
+int32_t
+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);
- local->cont.getdents.size = size;
- local->cont.getdents.offset = offset;
- local->cont.getdents.flag = flag;
-
- frame->local = local;
+ return 0;
+}
- STACK_WIND (frame, afr_getdents_cbk,
- children[call_child], children[call_child]->fops->getdents,
- fd, size, offset, flag);
- op_ret = 0;
-out:
- if (op_ret == -1) {
- AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
- }
+int32_t
+afr_releasedir (xlator_t *this, fd_t *fd)
+{
+ afr_cleanup_fd_ctx (this, fd);
- return 0;
+ return 0;
}
-
-
diff --git a/xlators/cluster/afr/src/afr-dir-read.h b/xlators/cluster/afr/src/afr-dir-read.h
index 6d981fdfd..09456d159 100644
--- a/xlators/cluster/afr/src/afr-dir-read.h
+++ b/xlators/cluster/afr/src/afr-dir-read.h
@@ -1,20 +1,11 @@
/*
- Copyright (c) 2007-2009 Z RESEARCH, Inc. <http://www.zresearch.com>
- 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/>.
+ 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 __DIR_READ_H__
@@ -23,25 +14,23 @@
int32_t
afr_opendir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, fd_t *fd);
+ loc_t *loc, fd_t *fd, dict_t *xdata);
int32_t
-afr_closedir (call_frame_t *frame, xlator_t *this,
- fd_t *fd);
+afr_releasedir (xlator_t *this, fd_t *fd);
int32_t
afr_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset);
+ fd_t *fd, size_t size, off_t offset, dict_t *xdata);
int32_t
-afr_getdents (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset, int32_t flag);
-
+afr_readdirp (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t offset, dict_t *dict);
int32_t
afr_checksum (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags);
+ loc_t *loc, int32_t flags, dict_t *xdata);
#endif /* __DIR_READ_H__ */
diff --git a/xlators/cluster/afr/src/afr-dir-write.c b/xlators/cluster/afr/src/afr-dir-write.c
index af72c6440..465dde54f 100644
--- a/xlators/cluster/afr/src/afr-dir-write.c
+++ b/xlators/cluster/afr/src/afr-dir-write.c
@@ -1,20 +1,11 @@
/*
- Copyright (c) 2007-2009 Z RESEARCH, Inc. <http://www.zresearch.com>
+ Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
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 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.
*/
@@ -43,1744 +34,1446 @@
#include "common-utils.h"
#include "compat-errno.h"
#include "compat.h"
+#include "byte-order.h"
#include "afr.h"
#include "afr-transaction.h"
-
void
-afr_build_parent_loc (loc_t *parent, loc_t *child)
-{
- char *tmp = NULL;
-
- if (!child->parent) {
- loc_copy (parent, child);
- return;
- }
-
- tmp = strdup (child->path);
- parent->path = strdup (dirname (tmp));
- FREE (tmp);
-
- parent->name = strrchr (parent->path, '/');
- if (parent->name)
- parent->name++;
-
- parent->inode = inode_ref (child->parent);
- parent->parent = inode_parent (parent->inode, 0, NULL);
- parent->ino = parent->inode->ino;
-}
-
-
-/* {{{ create */
+afr_mark_entry_pending_changelog (call_frame_t *frame, xlator_t *this);
int
-afr_create_unwind (call_frame_t *frame, xlator_t *this)
+afr_build_parent_loc (loc_t *parent, loc_t *child, int32_t *op_errno)
{
- call_frame_t *main_frame = NULL;
- afr_local_t *local = 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);
+ int ret = -1;
+ char *child_path = NULL;
+
+ if (!child->parent) {
+ if (op_errno)
+ *op_errno = EINVAL;
+ goto out;
+ }
+
+ child_path = gf_strdup (child->path);
+ if (!child_path) {
+ if (op_errno)
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ 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);
- if (main_frame)
- AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
- local->cont.create.fd,
- local->cont.create.inode,
- &local->cont.create.buf);
- return 0;
+ return ret;
}
-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 stat *buf)
+static void
+__afr_dir_write_finalize (call_frame_t *frame, xlator_t *this)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
-
- int call_count = -1;
- int child_index = -1;
+ 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;
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (child_went_down (op_ret, op_errno))
- afr_transaction_child_died (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if ((local->success_count == 0)
- || (child_index == priv->read_child)) {
- local->cont.create.buf = *buf;
- local->cont.create.buf.st_ino =
- afr_itransform (buf->st_ino,
- priv->child_count,
- child_index);
- }
- local->cont.create.inode = inode;
-
- local->success_count++;
+ 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;
}
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
+ 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;
+ }
- call_count = afr_frame_return (frame);
+ 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 (call_count == 0) {
- local->transaction.unwind (frame, this);
+ if (i == parent_read_subvol) {
+ local->cont.dir_fop.preparent =
+ local->replies[i].preparent;
+ local->cont.dir_fop.postparent =
+ local->replies[i].postparent;
+ }
- local->transaction.resume (frame, this);
+ if (i == parent2_read_subvol) {
+ local->cont.dir_fop.prenewparent =
+ local->replies[i].preparent2;
+ local->cont.dir_fop.postnewparent =
+ local->replies[i].postparent2;
+ }
}
-
- return 0;
}
-int
-afr_create_wind (call_frame_t *frame, xlator_t *this)
+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_private_t *priv = NULL;
-
- int call_count = -1;
- int i = 0;
+ 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;
+}
- local = frame->local;
- priv = this->private;
- call_count = afr_up_children_count (priv->child_count, local->child_up);
+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;
- if (call_count == 0) {
- local->transaction.resume (frame, this);
- return 0;
- }
+ local = frame->local;
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[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->cont.create.fd);
- if (!--call_count)
- break;
- }
+ LOCK (&frame->lock);
+ {
+ __afr_dir_write_fill (frame, this, child_index, op_ret,
+ op_errno, buf, preparent, postparent,
+ preparent2, postparent2, xdata);
}
-
- return 0;
-}
+ UNLOCK (&frame->lock);
+ call_count = afr_frame_return (frame);
+ if (call_count == 0) {
+ __afr_dir_write_finalize (frame, this);
-int
-afr_create_done (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t * local = NULL;
-
- local = frame->local;
+ if (afr_txn_nothing_failed (frame, this))
+ local->transaction.unwind (frame, this);
- local->transaction.unwind (frame, this);
+ afr_mark_entry_pending_changelog (frame, this);
- AFR_STACK_DESTROY (frame);
+ local->transaction.resume (frame, this);
+ }
- return 0;
+ return 0;
}
int
-afr_create (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags, mode_t mode, fd_t *fd)
+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_private_t * priv = NULL;
- afr_local_t * local = NULL;
- call_frame_t * transaction_frame = NULL;
+ int call_count = 0;
- int ret = -1;
+ call_count = afr_frame_return (frame);
- int op_ret = -1;
- int op_errno = 0;
+ if (call_count == 0)
+ AFR_STACK_DESTROY (frame);
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ return 0;
+}
- priv = this->private;
- transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- gf_log (this->name, GF_LOG_ERROR,
- "out of memory :(");
+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;
+
+ local = frame->local;
+ priv = this->private;
+
+ new_frame = copy_frame (frame);
+ if (!new_frame)
+ goto out;
+
+ new_local = AFR_FRAME_INIT (new_frame, op_errno);
+ if (!new_local)
goto out;
- }
- ALLOC_OR_GOTO (local, afr_local_t, out);
+ changelog = afr_matrix_create (priv->child_count, AFR_NUM_CHANGE_LOGS);
+ if (!changelog)
+ goto out;
- ret = AFR_LOCAL_INIT (local, priv);
- if (ret < 0) {
- op_errno = -ret;
+ xattr = dict_new ();
+ if (!xattr)
goto out;
- }
-
- transaction_frame->local = local;
-
- loc_copy (&local->loc, loc);
- local->cont.create.flags = flags;
- local->cont.create.mode = mode;
- local->cont.create.fd = fd_ref (fd);
+ idx = afr_index_for_transaction_type (AFR_DATA_TRANSACTION);
- local->transaction.fop = afr_create_wind;
- local->transaction.done = afr_create_done;
- local->transaction.unwind = afr_create_unwind;
+ pending = alloca0 (priv->child_count);
- afr_build_parent_loc (&local->transaction.parent_loc, loc);
-
- local->transaction.main_frame = frame;
- local->transaction.basename = AFR_BASENAME (loc->path);
- local->transaction.pending = AFR_ENTRY_PENDING;
-
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->transaction.pre_op[i] &&
+ !local->transaction.failed_subvols[i]) {
+ call_count ++;
+ continue;
+ }
- op_ret = 0;
-out:
- if (op_ret == -1) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
+ changelog[i][idx] = hton32(1);
+ pending[i] = 1;
}
- return 0;
-}
+ 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);
-/* }}} */
-/* {{{ mknod */
+ afr_set_pending_dict (priv, xattr, changelog);
-int
-afr_mknod_unwind (call_frame_t *frame, xlator_t *this)
-{
- call_frame_t *main_frame = NULL;
- afr_local_t *local = NULL;
+ new_local->call_count = call_count;
- local = frame->local;
+ for (i = 0; i < priv->child_count; i++) {
+ if (pending[i])
+ continue;
- LOCK (&frame->lock);
- {
- if (local->transaction.main_frame) {
- main_frame = local->transaction.main_frame;
- }
- local->transaction.main_frame = NULL;
- }
- UNLOCK (&frame->lock);
+ 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;
+ }
- if (main_frame)
- AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
- local->cont.mknod.inode,
- &local->cont.mknod.buf);
- return 0;
+ new_frame = NULL;
+out:
+ if (new_frame)
+ AFR_STACK_DESTROY (new_frame);
+ if (xattr)
+ dict_unref (xattr);
+ return;
}
-int
-afr_mknod_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct stat *buf)
+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 child_index = -1;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+ int pre_op_count = 0;
+ int failed_count = 0;
- local = frame->local;
- priv = this->private;
+ local = frame->local;
+ priv = this->private;
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (child_went_down (op_ret, op_errno))
- afr_transaction_child_died (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if ((local->success_count == 0)
- || (child_index == priv->read_child)) {
- local->cont.mknod.buf = *buf;
- local->cont.mknod.buf.st_ino =
- afr_itransform (buf->st_ino,
- priv->child_count,
- child_index);
- }
- local->cont.mknod.inode = inode;
+ if (local->op_ret < 0)
+ return;
- local->success_count++;
- }
+ if (local->op != GF_FOP_CREATE && local->op != GF_FOP_MKNOD)
+ return;
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
+ pre_op_count = AFR_COUNT (local->transaction.pre_op, priv->child_count);
+ failed_count = AFR_COUNT (local->transaction.failed_subvols,
+ priv->child_count);
- call_count = afr_frame_return (frame);
+ if (pre_op_count == priv->child_count && !failed_count)
+ return;
- if (call_count == 0) {
- local->transaction.unwind (frame, this);
+ afr_mark_new_entry_changelog (frame, this);
- local->transaction.resume (frame, this);
- }
-
- return 0;
+ return;
}
-int32_t
-afr_mknod_wind (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
+/* {{{ create */
- int call_count = -1;
- int i = 0;
+int
+afr_create_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
- local = frame->local;
- priv = this->private;
+ local = frame->local;
- call_count = afr_up_children_count (priv->child_count, local->child_up);
+ main_frame = afr_transaction_detach_fop_frame (frame);
- if (call_count == 0) {
- local->transaction.resume (frame, this);
+ if (!main_frame)
return 0;
- }
- local->call_count = call_count;
-
- for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[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);
- if (!--call_count)
- break;
- }
- }
-
- 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_mknod_done (call_frame_t *frame, xlator_t *this)
+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_local_t * local = NULL;
-
- local = frame->local;
+ return __afr_dir_write_cbk (frame, cookie, this, op_ret, op_errno, buf,
+ preparent, postparent, NULL, NULL, xdata);
+}
- local->transaction.unwind (frame, this);
- AFR_STACK_DESTROY (frame);
- return 0;
+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_mknod (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, dev_t dev)
+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;
- call_frame_t * transaction_frame = NULL;
+ 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 ret = -1;
+ priv = this->private;
- int op_ret = -1;
- int op_errno = 0;
+ QUORUM_CHECK(create,out);
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame)
+ goto out;
- priv = this->private;
-
- transaction_frame = copy_frame (frame);
- if (!transaction_frame) {
- gf_log (this->name, GF_LOG_ERROR,
- "out of memory :(");
+ local = AFR_FRAME_INIT (transaction_frame, op_errno);
+ if (!local)
goto out;
- }
- ALLOC_OR_GOTO (local, afr_local_t, out);
+ loc_copy (&local->loc, loc);
- ret = AFR_LOCAL_INIT (local, priv);
- if (ret < 0) {
- op_errno = -ret;
+ local->fd_ctx = afr_fd_ctx_get (fd, this);
+ if (!local->fd_ctx)
goto out;
- }
-
- transaction_frame->local = local;
- loc_copy (&local->loc, loc);
+ local->inode = inode_ref (loc->inode);
+ local->parent = inode_ref (loc->parent);
- local->cont.mknod.mode = mode;
- local->cont.mknod.dev = dev;
+ 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;
- local->transaction.fop = afr_mknod_wind;
- local->transaction.done = afr_mknod_done;
- local->transaction.unwind = afr_mknod_unwind;
+ if (xdata)
+ local->xdata_req = dict_copy_with_ref (xdata, NULL);
+ else
+ local->xdata_req = dict_new ();
- afr_build_parent_loc (&local->transaction.parent_loc, loc);
-
- local->transaction.main_frame = frame;
- local->transaction.basename = AFR_BASENAME (loc->path);
- local->transaction.pending = AFR_ENTRY_PENDING;
+ if (!local->xdata_req)
+ goto out;
- afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ 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,
+ &op_errno);
+ if (ret)
+ goto out;
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ int_lock = &local->internal_lock;
+
+ 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;
+
+ int_lock->lockee_count++;
+ ret = afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
- op_ret = 0;
+ return 0;
out:
- if (op_ret == -1) {
- if (transaction_frame)
- AFR_STACK_DESTROY (transaction_frame);
- AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
- }
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
- return 0;
+ AFR_STACK_UNWIND (create, frame, -1, op_errno, NULL, NULL, NULL, NULL,
+ NULL, NULL);
+ return 0;
}
/* }}} */
-/* {{{ mkdir */
-
+/* {{{ mknod */
int
-afr_mkdir_unwind (call_frame_t *frame, xlator_t *this)
+afr_mknod_unwind (call_frame_t *frame, xlator_t *this)
{
- call_frame_t *main_frame = NULL;
- afr_local_t *local = NULL;
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
- local = frame->local;
+ 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 (main_frame, local->op_ret, local->op_errno,
- local->cont.mkdir.inode,
- &local->cont.mkdir.buf);
- 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;
}
int
-afr_mkdir_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct stat *buf)
+afr_mknod_wind_cbk (call_frame_t *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)
{
- afr_local_t * local = NULL;
- afr_private_t * priv = NULL;
-
- int call_count = -1;
- int child_index = -1;
-
- local = frame->local;
- priv = this->private;
-
- child_index = (long) cookie;
-
- LOCK (&frame->lock);
- {
- if (child_went_down (op_ret, op_errno))
- afr_transaction_child_died (frame, this, child_index);
-
- if (op_ret != -1) {
- local->op_ret = op_ret;
-
- if ((local->success_count == 0)
- || (child_index == priv->read_child)) {
- local->cont.mkdir.buf = *buf;
- local->cont.mkdir.buf.st_ino =
- afr_itransform (buf->st_ino, priv->child_count,
- child_index);
- }
- local->cont.mkdir.inode = inode;
-
- local->success_count++;
- }
-
- local->op_errno = op_errno;
- }
- UNLOCK (&frame->lock);
-
- call_count = afr_frame_return (frame);
-