| Commit message (Collapse) | Author | Age | Files | Lines |
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When using list_for_each_entry(_safe) functions, care needs
to be taken that the list passed in are not empty, as these
functions are not empty list safe.
clag scan reported various points where this this pattern
could be caught, and this patch fixes the same.
Additionally the following changes are present in this patch,
- Added an explicit op_ret setting in error case in the
macro MAKE_INODE_HANDLE to address another clang issue reported
- Minor refactoring of some functions in quota code, to address
possible allocation failures in certain functions (which in turn
cause possible empty lists to be passed around)
Change-Id: I1e761a8d218708f714effb56fa643df2a3ea2cc7
Updates: bz#1622665
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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* libglusterfs changes to add new fop
* Fuse changes:
- Changes in fuse bridge xlator to receive and send responses
* posix changes to perform the op on the backend filesystem
* protocol and rpc changes for sending and receiving the fop
* gfapi changes for performing the fop
* tools: glfs-copy-file-range tool for testing copy_file_range fop
- Although, copy_file_range support has been added to the upstream
fuse kernel module, no release has been made yet of a kernel
which contains the support. It is expected to come in the
upcoming release of linux-4.20
So, as of now, executing copy_file_range fop on a fused based
filesystem results in fuse kernel module sending read on the
source fd and write on the destination fd.
Therefore a small gfapi based tool has been written to be able
test the copy_file_range fop. This tool is similar (in functionality)
to the example program given in copy_file_range man page.
So, running regular copy_file_range on a fuse mount point and
running gfapi based glfs-copy-file-range tool gives some idea about
how fast, the copy_file_range (or reflink) can be.
On the local machine this was the result obtained.
mount -t glusterfs workstation:new /mnt/glusterfs
[root@workstation ~]# cd /mnt/glusterfs/
[root@workstation glusterfs]# ls
file
[root@workstation glusterfs]# cd
[root@workstation ~]# time /tmp/a.out /mnt/glusterfs/file /mnt/glusterfs/new
real 0m6.495s
user 0m0.000s
sys 0m1.439s
[root@workstation ~]# time glfs-copy-file-range $(hostname) new /tmp/glfs.log /file /rrr
OPEN_SRC: opening /file is success
OPEN_DST: opening /rrr is success
FSTAT_SRC: fstat on /rrr is success
copy_file_range successful
real 0m0.309s
user 0m0.039s
sys 0m0.017s
This tool needs following arguments
1) hostname
2) volume name
3) log file path
4) source file path (relative to the gluster volume root)
5) destination file path (relative to the gluster volume root)
"glfs-copy-file-range <hostname> <volume> <log file path> <source> <destination>"
- Added a testcase as well to run glfs-copy-file-range tool
* io-stats changes to capture the fop for profiling
* NOTE:
- Added conditional check to see whether the copy_file_range syscall
is available or not. If not, then return ENOSYS.
- Added conditional check for kernel minor version in fuse_kernel.h
and fuse-bridge while referring to copy_file_range. And the kernel
minor version is kept as it is. i.e. 24. Increment it in future
when there is a kernel release which contains the support for
copy_file_range fop in fuse kernel module.
* The document which contains a writeup on this enhancement can be found at
https://docs.google.com/document/d/1BSILbXr_knynNwxSyyu503JoTz5QFM_4suNIh2WwrSc/edit
Change-Id: I280069c814dd21ce6ec3be00a884fc24ab692367
updates: #536
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.
Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation <> in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs
This change although big, is just moving around the headers and
making it correct when including these headers from other sources.
This helps us correctly include libglusterfs includes without
namespace conflicts.
Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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Upcall notifications are received from server via epoll
and same thread is used to forward these notifications
to the application. This may lead to deadlock and hang
in the following scenario.
Consider if as part of handling these callbacks,
application has to do some operations which involve
sending I/Os to gfapi stack which inturn have to wait for
epoll threads to receive repsonse. Thus this may lead to
deadlock if all the epoll threads are waiting to complete
these callback notifications.
To address it, instead of using epoll thread itself,
make use of synctask to send those notificaitons to the
application.
Change-Id: If614e0d09246e4279b9d1f40d883a32a39c8fd90
updates: bz#1648768
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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translators like readdir-ahead selectively retain entry information of
iatt (gfid and type) when rest of the iatt is invalidated (for write
invalidating ia_size, (m)(c)times etc). Fuse-bridge uses this
information and sends only entry information in readdirplus
response. However such option doesn't exist in gfapi. This patch
modifies gfapi to populate the stat by forcing an extra lookup.
Thanks to Shyamsundar Ranganathan <srangana@redhat.com> and Prashanth
Pai <ppai@redhat.com> for tests.
Change-Id: Ieb5f8fc76359c327627b7d8420aaf20810e53000
Fixes: bz#1630804
Signed-off-by: Raghavendra Gowdappa <rgowdapp@redhat.com>
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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This patch fixes below issues in gfapi lease code-path
* 'glfs_setfsleasid' should allow NULL input to be
able to reset leaseid
* Applications should be allowed to (un)register for
upcall notifications of type GLFS_EVENT_LEASE_RECALL
* APIs added to read contents of GLFS_EVENT_LEASE_RECALL
argument which is of type "struct glfs_upcall_lease"
Change-Id: I3320ddf235cc82fad561e13b9457ebd64db6c76b
updates: #350
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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When compiling in other architectures there appear many warnings. Some
of them are actual problems that prevent gluster to work correctly on
those architectures.
Change-Id: Icdc7107a2bc2da662903c51910beddb84bdf03c0
fixes: bz#1632717
Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
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2 extra symbols were in the alias file, that are not exported
this is cleaned up with this patch.
Change-Id: I1ab54b9fb6b0d455884fbbfd89820c60bb861e6f
Updates: bz#1193929
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu <nigelb@redhat.com>
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strncpy may not be very efficient for short strings copied into
a large buffer: If the length of src is less than n,
strncpy() writes additional null bytes to dest to ensure
that a total of n bytes are written.
Instead, use snprintf().
Also, save the result of strlen() and re-use it when possible.
Compile-tested only!
Change-Id: I4ecfb359cf0efaafeab245a8138f526b21613231
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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glfs-fops.c
1391414 Uninitialized pointer read
List head needed initialization
glusterfsd-mgmt.c
graph.c
1382431 Buffer not null terminated
1382417 Dereference before null check
1382347 Buffer not null terminated
Cleaned usage of volfile_checksum member of gf_volfile_t struct
across the code base.
glusterd-tier.c
1382426 Resource leak
1370955 Dereference before null check
The function fixed needs more work, but with tier almost being
deprecated, addressed some parts of the reported coverity issues
as appropriate.
Tested using the following test cases:
./tests/basic/tier/new-tier-cmds.t
./tests/basic/tier/tier.t
./tests/basic/tier/bug-1214222-directories_missing_after_attach_tier.t
./tests/basic/tier/tier_lookup_heal.t
./tests/basic/tier/tier-heald.t
./tests/basic/tier/tier-snapshot.t
./tests/features/glfs-lease.t
Change-Id: I396f1c34bb112bb22d2745ed279e1a4850cac4af
Updates: bz#789278
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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After unlink/rename, the nonexistent inode should be remove from inode table,
that's better than put to lru list.
Change-Id: I5a40df188f3f42a2c864cfb4404b22b288fdcc12
fixes: bz#1612750
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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Please review, it's not always just the comments that were fixed.
I've had to revert of course all calls to creat() that were changed
to create() ...
Only compile-tested!
Change-Id: I7d02e82d9766e272a7fd9cc68e51901d69e5aab5
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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*** CID 1391419: Control flow issues (DEADCODE)
glusterfs/api/src/glfs-fops.c: 5224 in glfs_recall_lease_upcall()
*** CID 1391414: Memory - illegal accesses (UNINIT)
glusterfs/glusterfs/api/src/glfs-fops.c: 5137 in glfs_recall_lease_fd()
Fixes: #789278
Change-Id: Ie16103e7e321724d3cf1bdcb815c2e2467b9a366
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
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fix inconsistent use in headers of:
struct glfs and glfs_t
struct glfs_fd and glfs_fd_t
struct glfs_object and glfs_object_t
add typedefs to headers for various struct glfs_foos, and use them, e.g.:
struct glfs_upcall and glfs_upcall_t
fix inconsistent type naming for 'enum glfs_lock_mode_t'. (All other
enum decls are 'enum glfs_foo' not 'enum_glfs_foo_t'), and add
typedefs for all enums, and use them.
style, replace tabs with spaces and follow return value style, i.e.:
int
pub_glfs_foo()
instead of:
int pub_glfs_foo()
Update copyright dates, substantial new work has been done since 2012
Change-Id: I0a9654486ea132efde7977b655799fb37887b1d5
Updates: bz#1193929
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
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Currently plugins for cloudsync will be using it to write back data
downloaded from remote store/cloud.
Change-Id: I59f10bebed21b19568c94cbf29e3d536d5570749
Updates: #387
Signed-off-by: Susant Palai <spalai@redhat.com>
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lots of breakage in symbol versions:
symbols added in 4.1 incorrectly, and
symbols added in 4.1 but labeled 4.0.0, and
symbols added in 3.13 incorrectly
Not noticed until someone tried to build 3.13.2 on FreeBSD 11.1,
despite the fact that we build on FreeBSD 10.3 IIRC, somehow the
3.13 errors aren't a build error there.
Note: in rereading the Ulrich Drepper write-up I noticed that when
a symbol version is changed, you are supposed to leave the old
symbol in its original section in addition to adding it to its new
section. Adding back those symbols to their original sections.
Reported-by: Roman Serbski <mefystofel@gmail.com>
Change-Id: I9a883546d08e0847f7228d8ea5943bc54275b319
fixes: bz#1575716
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
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Due to missing curly braces we end up calling the callback
function even when state is GLFD_CLOSE. This patch adds the
curly braces so both the log and actual callback is skipped.
Introduced in 19568 in commit b04066721bf4a240f61b83bd87bbb27437c5fe4f
Change-Id: I0b15cfe222841cfcb12f17723284acb3838d64d7
fixes: bz#1575294
Signed-off-by: Thomas Hindoe Paaboel Andersen <phomes@gmail.com>
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Right now there are two types of upcalls
* poll method
* registering callback
But callback can be registered per fs and same callback fn shall be used
for any lease recall with object handle as argument as done for cache
invalidation.
TODO: RECALL LEASE for each glfd (for future reference)
(may be needed fo Samba as they do not deal with
object handles.
In case of RECALL_LEASE, we could associate separate
cbk function for each glfd either by
- extending pub_glfs_lease to accept new args (recall_cbk_fn, cookie)
- or by defining new API "glfs_register_recall_cbk_fn (glfd, recall_cbk_fn, cookie)
. In such cases, flag it and instead of calling below upcall functions, define
a new one to go through the glfd list and invoke each of theirs recall_cbk_fn.
Plus added following as well
* passed lease id to dict in required arguments
* added flag check in pub_glfs_open
Updates: #350
Change-Id: I07a971f0f26ec6aae0b9f9a5613504317dee153b
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Signed-off-by: Poornima G <pgurusid@redhat.com>
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
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duplicatation of exported functions in gfapi.map. Only the newest one
is needed. Both the legacy and current symbols are exported.
glfs_io_cbk34 typedef should not be in a public header file. The old
application was compiled with the original glfs_io_cbk. Outside of
libgfapi, nothing now uses/needs this old typedef, move it into the
C file that needs it.
Similarly glfs_realpath34() decl should not be in glfs.h. Period. Old
applications were compiled with the then glfs_realpath() decl and
linked with glfs_realpath@@GFAPI_3_4.0. New applications should only
call glfs_realpath() and it will be linked to the new/current
glfs_realpath().
Change-Id: Icd5b0c9e9b68f0c133f14447b09ace35f33dbab2
fixes: bz#1564235
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
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Updates: #389
Change-Id: Ic71632722effe4b8855d5de3e65688efd9afe1e3
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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Updates: #389
Change-Id: I8faea0828921fb17f05f7321c3cb01747373f21e
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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Updates: #389
Change-Id: I4153df72d5eeecefa7579170899db4c340128bea
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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As nfs-ganesha, a wcc data contains pre/post attributes is return
in read/write rpc reply. nfs-ganesha get those attributes by
two getattr between the real read/write right now.
But, gluster has return pre/post attributes from glusterfsd,
those attributes are skipped in syncop/gfapi, if gfapi return them,
the upper user (nfs-ganesha) can use them directly without any
duplicate getattr.
Updates: #389
Change-Id: I7b643ae4241cfe2aeb17063de00192d81674024a
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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The inode_set_need_lookup is removed from fuse_readdirp_cbk at
http://lists.gluster.org/pipermail/gluster-devel/2017-August/053505.html
https://review.gluster.org/#/c/17985/
Remove the same logical from glfd_entry_refresh too.
Change-Id: Ic0d7b59d4d4ed8315bf4c5e87e8e1133bcf95401
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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Following APIs glfs_h_lease(), glfs_lease() added, so that gfapi applications
can set and get lease which enables more efficient client side caching.
Updates: #350
Change-Id: Iede85be9af1d4df969b890d0937ed0afa4ca6596
Signed-off-by: Poornima G <pgurusid@redhat.com>
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
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The current API for byte-range locks [glfs_posix_lock()] doesn't
allow applications to specify whether it is advisory or mandatory
type locks. This particular change is to introduce an extended
byte-range lock API with an additional argument for including
the byte-range lock mode to be one among advisory(default) or
mandatory. Patch also includes a gfapi test case which make use
of this new api to acquire mandatory locks.
Ref: https://github.com/gluster/glusterfs-specs/blob/master/done/GlusterFS%203.8/Mandatory%20Locks.md
Change-Id: Ia09042c755d891895d96da857321abc4ce03e20c
Updates #393
Signed-off-by: Anoop C S <anoopcs@redhat.com>
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updates #220
Change-Id: I6e25dbb69b2c7021e00073e8f025d212db7de0be
Signed-off-by: Amar Tumballi <amarts@redhat.com>
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This patch fixes coverity issues 176
[1] : https://download.gluster.org/pub/gluster/glusterfs/static-analysis/
master/glusterfs-coverity/2017-10-30-9aa574a5/html/
Change-Id: I473323db27218ac784b8eae773a1efe911fcfec0
BUG: 789278
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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Polling continuously for upcall events is not optimal.
Hence new APIs have been added to allow applications to
register and unregister upcall events it is interested in
along with callback function to be invoked in case of any
such upcalls sent by backend server.
@TODO: Make changes in upcall xlator so that events are
sent to only those clients which either registered callbacks
or started polling. Shall be addressed in separate patch.
Updates: #315
Change-Id: I40473fd5cf689172ff2d7bb2869756b7fd5bc761
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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To be able to backport the API glfd_set_lk_owner() to
existing stable (3.10, 3.12) releases, change its symbol
version to 3.10.7 (upcoming 3.10 release).
Also sticking to the norms of the gfapi library, changing
the routine name to glfs_fd_set_lkowner()
BUG: 1499641
Change-Id: I43d002a24f493770a3daa774dbda2b7ea6d49e37
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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We need a provision to be able to set lkowner (which is
used to distinguish locks maintained by server) in gfapi.
Since the same lk_owner need to be used to be able to
flush the lock while closing the fd, store the lkowner
in the glfd structure itself.
A new API has been added to be able to set lkowner in glfd.
Change-Id: I67591d6b9a89c20b9617d52616513ff9e6c06b47
BUG: 1499641
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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glfs_free releases different types of data depends on memory type.
Drop the depends of memory type of memory accounting,
new macro GLFS_CALLOC/GLFS_MALLOC/GLFS_REALLOC/GLFS_FREE are added
to support assign release function dynamically, it adds a separate
memory header named glfs_mem_header for gfapi.
Updates: #312
Change-Id: Ie608e5227cbaa05d3f4681a515e83a50d5b17c3f
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
Reviewed-on: https://review.gluster.org/18092
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Issue:
The caller of glfs_setxattr sends a buffer to set as the value.
We create a dict in which the pointer to the value is set.
Underlying layers like md-cache take a ref on this dict to store
the value for a longer time. But the moment setxattr is complete,
the caller of glfs_setxattr can free the value memory.
Solution:
memcpy the setxattr value to the gluster buffer.
Change-Id: I58753fe702e8b7d0f6c4f058714c65d0ad5d7a0a
BUG: 1477488
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: https://review.gluster.org/17967
Reviewed-by: soumya k <skoduri@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
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From https://download.gluster.org/pub/gluster/glusterfs/static-analysis/master/glusterfs-coverity/2017-05-03-6484558c/html/
fixes coverity#189, 248, 250, 488, 546
Change-Id: I7c4aa5bf6c367344602748dfd736de27f341cca2
BUG: 789278
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: https://review.gluster.org/17161
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Its known that readdirplus operation fetches stat as well for each of the
dirents. But often applications may need extra information, like for eg.,
NFS-Ganesha which operates on handles needs handles for each of those
dirents returned. So this would require extra calls to the backend, in this
case LOOKUP (which is very expensive operation) resulting in very low
readdir performance.
To address that introducing this new API using which applications can
make request for any extra information to be returned as part of
readdirplus response.
Currently this new api returns stat and handles as demanded by application.
The synopsis of the API is noted in glfs.h.
@todo:
* Enhance test script using this new API
Below were the perf results on single brick volume with and without
these changes -
Dataset used -
10*100 directories and each directory containing 100 empty files.
I used NFS-Ganesha application to test these changes -
>for i in {1..5}; do systemctl restart nfs-ganesha; sleep 10; mount -t nfs -o vers=4 localhost:/brick_vol /mnt; cd /mnt; echo "ITERATION$i"; date; find . > tmp-nfs.log; date; cd /; umount /mnt; sleep 2; done;
Without these changes -
ITERATION1
Mon Mar 20 17:22:26 IST 2017
Mon Mar 20 17:23:18 IST 2017
ITERATION2
Mon Mar 20 17:23:39 IST 2017
Mon Mar 20 17:24:28 IST 2017
ITERATION3
Mon Mar 20 17:24:49 IST 2017
Mon Mar 20 17:25:36 IST 2017
ITERATION4
Mon Mar 20 17:30:57 IST 2017
Mon Mar 20 17:31:37 IST 2017
ITERATION5
Mon Mar 20 17:31:57 IST 2017
Mon Mar 20 17:32:40 IST 2017
[root@dhcp35-197 /]#
On an average ~46.2 sec
With these changes applied -
ITERATION1
Mon Mar 20 17:35:03 IST 2017
Mon Mar 20 17:35:15 IST 2017
ITERATION2
Mon Mar 20 17:35:36 IST 2017
Mon Mar 20 17:35:46 IST 2017
ITERATION3
Mon Mar 20 17:36:06 IST 2017
Mon Mar 20 17:36:17 IST 2017
ITERATION4
Mon Mar 20 17:41:38 IST 2017
Mon Mar 20 17:41:49 IST 2017
ITERATION5
Mon Mar 20 17:42:10 IST 2017
Mon Mar 20 17:42:20 IST 2017
On an average ~10.8 sec
Updates #174
BUG: 1442950
Change-Id: I0f74f74dc62085ca4c4a23c38e3edc84bd850876
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: https://review.gluster.org/15663
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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In the APIs to do I/Os using anonymous fd, there
is a ref taken for inode which hasn't been unreferenced
post the operation. This shall result in the leak.
Change-Id: I75ea952a6b2df58c385f4f53398e5562f255248d
BUG: 1438738
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: https://review.gluster.org/16989
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Coverity reported that "glfd" has a NULL-check at the end of the
function, but is used without checking earlier. Because "glfd" is passed
as parameter to the (internal) function, there is no need to have the
additional NULL-check.
Change-Id: I1390b2ef250fbf624f0bc2b0eda7b7588942aae9
BUG: 789278
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: https://review.gluster.org/17026
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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If fd is unref'd at the end of async call then the unref in cbks would
lead to double unref and possible crash. Removing duplicate unrefs.
Added unref only in failure cases.
A simple test case has been added to test async write case. Need to
extend the same for other async APIs too.
Details:
All glfd based calls in libgfapi, except for glfs_open and glfs_close,
behave in the same way. At the start of the operation, they take a ref
on glfd and fd. At the end of the operation, they unref it. Async calls
are a little different as they unref in the cbk function. A successfull
open call does not unref either the glfd or fd, thereby functioning as a
reference for a OPEN file object. glfs_close makes a syncop_flush call
sandwiched between a fd ref and unref(this can be removed, more on this
below), followed by a call to glfs_mark_glfd_for_deletion which unrefs
glfd and also calls glfs_fd_destroy as a release function thereby doing
a unref on fd too.
Functionally, there is no problem with how everything works when as
described above. However, it is a little non-intuitive that we need to
perform a fd_unref as a consequence of a implicit fd_ref that happens
within glfs_resolve_fd. As we perform a GF_REF_GET(glfd) at the start of
every operation, it would be worthwhile to remove the fd_ref that
glfs_resovle_fd takes and do away with explicit fd_unref()s at the end
of every operation. This is the same reason why we don't need the fd_ref
in glfs_close. This is however not in the scope of this patch.
Change-Id: I86b1d3b2ad846b16ea527d541dc82b5e90b0ba85
BUG: 1391086
Signed-off-by: Raghavendra Talur <rtalur@redhat.com>
Reviewed-on: http://review.gluster.org/15768
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-by: soumya k <skoduri@redhat.com>
Reviewed-by: Prasanna Kumar Kalever <pkalever@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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glfs_realpath() may return memory allocated with malloc(). Depending on
the memory allocator that the application uses, calling free() on the
returned string can cause segmentation faults or other problems.
Functions that allocate memory, need to match the free'ing of the same
memory allocator and memory accounting. glibc/malloc and jemalloc/free
do not match together (other allocators could probably trigger these
problems as well).
Applications need to provide a pre-allocated buffer, or in case
glfs_realpath() allocates the memory, glfs_free() should be used to free
it.
Change-Id: I5d721a7425674aa700db8a7a436cbedb95a5927f
BUG: 1370931
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/15332
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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From the code inspection, have observed that there are fd ref
leaks for few fd-based gfapi fops. 'glfs_resolve_fd' returns
a fd (either existing or migrated) with an extra ref taken.
This needs to be unref'ed at the end of the operation.
Change-Id: Id63394e3e7deafb0c8b06444f2ae847248b126db
BUG: 1379285
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: http://review.gluster.org/15573
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
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When the volume option 'features.cache-invalidation' is enabled, upcall
events are sent from the brick process to the client. Even if the client
is not interested in upcall events itself, md-cache or other xlators may
benefit from them.
By adding a new 'cache_upcalls' boolean in the 'struct glfs', we can
enable the caching of upcalls when the application called
glfs_h_poll_upcall(). NFS-Ganesha sets up a thread for handling upcalls
in the initialization phase, and calls glfs_h_poll_upcall() before any
NFS-client accesses the NFS-export.
In the future there will be a more flexible registration API for
enabling certain kind of upcall events. Until that is available, this
should work just fine.
Verificatio of this change is not trivial within our current regression
test framework. The bug report contains a description on how to reliably
reproduce the problem with the glusterfs-coreutils.
Change-Id: I818595c92db50e6e48f7bfe287ee05103a4a30a2
BUG: 1368842
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/15191
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Poornima G <pgurusid@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: soumya k <skoduri@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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Change-Id: I80b016090a4d9d86278a0a5144dd58c0cbfe9bb2
BUG: 1365489
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Reviewed-on: http://review.gluster.org/13927
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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glfs_*timens() functions have the last argument
of struct timespec type that is supposed to be
const. Now using glfs_*timens() in fops, implemented
on top of FUSE library, leads to compiler-time warning
about discarding const qualifier.
Introducing const qualifier does not break ABI,
so let's just fix it.
Change-Id: Iea2a1018de7dce67f67a8229671a5978246de800
BUG: 1365506
Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Reviewed-on: http://review.gluster.org/15119
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
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During poll, upcall entries should be removed from the
upcall_list only under upcall_list_mutex lock. Otherwise
it could result in the list corruption if there are entries
being added during poll resulting in memory leak.
Also addressed a probable leak during any failures with upcall
entry addition.
Change-Id: I468183f961eb6faed9a0a1bcb783705f711641fc
BUG: 1358608
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: http://review.gluster.org/14972
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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glfs_buf_copy collates all iovecs into a iovec with count=1. If
gio->count is not updated it will lead to dereferencing of invalid
address.
Change-Id: I7c58071d5c6515ec6fee3ab36af206fa80cf37c3
BUG: 1352634
Signed-off-by: Raghavendra Talur <rtalur@redhat.com>
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reported-By: Lindsay Mathieson <lindsay.mathieson@gmail.com>
Reported-By: Dmitry Melekhov <dm@belkam.com>
Reported-By: Tom Emerson <TEmerson@cyberitas.com>
Reviewed-on: http://review.gluster.org/14854
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Niels de Vos <ndevos@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
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The glfs_io_async_cbk() is called from the cbk of all the async ops
such as write, read, fsync, ftruncate. In all other cases, expect for
read the value for "iovec" is NULL. From the code, glfs_io_async_cbk
checks the value in common routine which may end up in failures.
Thanks Joe Julian for finding issue and suggesting the fix.
Change-Id: I0be0123da68f9d8fbb5d94ede2d45566a9add6a5
BUG: 1349276
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reported-by: Joe Julian <me@joejulian.name>
Reviewed-on: http://review.gluster.org/14779
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Tested-by: Kaleb KEITHLEY <kkeithle@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Joe Julian <me@joejulian.name>
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We do not seem to be setting errno appropriately in case
of inode_link failures. This errno may be used by any application
(for eg., nfs-ganesha) to determine the error encountered. This
patch addresses the same.
Change-Id: I674f747c73369d0597a9c463e6ea4c85b9091355
BUG: 1334621
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: http://review.gluster.org/14278
Smoke: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
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RCA:
Currently async nature is achieved by submitting a syncop operation to
synctask threads. Consider a scenario where the graph switch is triggered,
the next write fop checks for the next available graph and sets
fs->migration_in_progess and triggers the migration of fds and other
things, which can cause some syncop_lookup operation. While this fop (on
synctask thread) is waiting for syncop_lookup to return, lets say there
are another 17 write async calls submitted, all these writes are blocked
waiting for fs->migration_in_progress to be unset, hence all the 16
synctask threads are blocked waiting for fs->migration_in_progress to be
unset. Now the syncop_lookup returns, but there are no synctask threads to
process the lookup_cbk. If this syncop_lookup doesn't return,
then fs->migration_in_progress can not be unset by the first fop.
Thus causing a deadlock.
To fix this deadlock, changing all the async APIs to use STACK_WIND,
instead of syntask to achieve async nature. glfs_preadv_async is already
implemented using STACK_WIND, now changing all the other async APIs
also to do the same.
This patch as such will not reduce the performance of async IO, the only
thing that can affect is that, in case of write, the buf passed by
application is copied onto iobuf in the same thread wheras before it
was being copied in synctask thread.
Since, the syncop + graph switch logic (lock across fops) is not a good
candidate for synctask, changing the async APIs to use STACK_WIND
Change-Id: Idf665cae0a8e27697fbfc5ec8d93a6d6bae3a4f1
BUG: 1332156
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: http://review.gluster.org/14148
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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If any of dirent have inode as null in readdirp_cbk, which indicates
that the stat information is not valid. So for such entries, we send
explicit lookup to fill the stat information.
Change-Id: I0604bce34583db0bb04b5aae8933766201c6ddad
BUG: 1330567
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/14079
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
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