IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
To handle the race condition of a fop or a function accessing priv->path
and a reconfigure changing priv->path (because entry point directory
changed), the private structure's path is guarded by the lock.
updates bz#1650403
Change-Id: I61c539da06d68d38eafcf2155699c7702f31323e
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
In a previous patch (https://review.gluster.org/20769) we've
added the key length to be passed to dict_* funcs, to remove the need
to strlen() it. This patch moves some xlators to use it.
- In some cases, moved strlen() of the key length outside of locks,
which is usually a good thing. Please verify it's safe to do so.
- In some cases, created a prefix for the keys, replacing something like
"%d-%d" with a "%s" in snprintf(). Not sure it adds value, but improves
readability.
Please review carefully.
Compile-tested only!
Change-Id: I04f2a1eb2ecfc3283d849d150d10d088ae7aa7f1
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Traceback:
Direct leak of 765 byte(s) in 9 object(s) allocated from:
#0 0x7ffb9cad2c48 in malloc (/lib64/libasan.so.5+0xeec48)
#1 0x7ffb9c5f8949 in __gf_malloc ./libglusterfs/src/mem-pool.c:136
#2 0x7ffb9c5f91bb in gf_vasprintf ./libglusterfs/src/mem-pool.c:236
#3 0x7ffb9c5f938a in gf_asprintf ./libglusterfs/src/mem-pool.c:256
#4 0x7ffb826714ab in afr_get_heal_info ./xlators/cluster/afr/src/afr-common.c:6204
#5 0x7ffb825765e5 in afr_handle_heal_xattrs ./xlators/cluster/afr/src/afr-inode-read.c:1481
#6 0x7ffb825765e5 in afr_getxattr ./xlators/cluster/afr/src/afr-inode-read.c:1571
#7 0x7ffb9c635af7 in syncop_getxattr ./libglusterfs/src/syncop.c:1680
#8 0x406c78 in glfsh_process_entries ./heal/src/glfs-heal.c:810
#9 0x408555 in glfsh_crawl_directory ./heal/src/glfs-heal.c:898
#10 0x408cc0 in glfsh_print_pending_heals_type ./heal/src/glfs-heal.c:970
#11 0x408fc5 in glfsh_print_pending_heals ./heal/src/glfs-heal.c:1012
#12 0x409546 in glfsh_gather_heal_info ./heal/src/glfs-heal.c:1154
#13 0x403e96 in main ./heal/src/glfs-heal.c:1745
#14 0x7ffb99bc411a in __libc_start_main ../csu/libc-start.c:308
The dictionary is referenced by caller to print the status.
So set it as dynstr, the last unref of dictionary will free it.
updates: bz#1633930
Change-Id: Ib5a7cb891e6f7d90560859aaf6239e52ff5477d0
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Use the (f)getxattr based clearlocks interface to
interrupt a pending lock request.
updates: #465
Change-Id: I4e91a4d8791fc688fed400a02de4c53487e61be2
Signed-off-by: Csaba Henk <csaba@redhat.com>
The inode LRU mechanism is moot in fuse xlator (ie. there is no
limit for the LRU list), as fuse inodes are referenced from
kernel context, and thus they can only be dropped on request of
the kernel. This might results in a high number of passive
inodes which are useless for the glusterfs client, causing a
significant memory overhead.
This change tries to remedy this by extending the LRU semantics
and allowing to set a finite limit on the fuse inode LRU.
A brief history of problem:
When gluster's inode table was designed, fuse didn't have any
'invalidate' method, which means, userspace application could
never ask kernel to send a 'forget()' fop, instead had to wait
for kernel to send it based on kernel's parameters. Inode table
remembers the number of times kernel has cached the inode based
on the 'nlookup' parameter. And 'nlookup' field is not used by
no other entry points (like server-protocol, gfapi etc).
Hence the inode_table of fuse module always has to have lru-limit
as '0', which means no limit. GlusterFS always had to keep all
inodes in memory as kernel would have had a reference to it.
Again, the reason for this is, kernel's glusterfs inode reference
was pointer of 'inode_t' structure in glusterfs. As it is a
pointer, we could never free it (to prevent segfault, or memory
corruption).
Solution:
In the inode table, handle the prune case of inodes with 'nlookup'
differently, and call a 'invalidator' method, which in this case is
fuse_invalidate(), and it sends the request to kernel for getting
the forget request.
When the kernel sends the forget, it means, it has dropped all
the reference to the inode, and it will send the forget with the
'nlookup' parameter too. We just need to make sure to reduce the
'nlookup' value we have when we get forget. That automatically
cause the relevant prune to happen.
Credits: Csaba Henk, Xavier Hernandez, Raghavendra Gowdappa, Nithya B
fixes: bz#1560969
Change-Id: Ifee0737b23b12b1426c224ec5b8f591f487d83a2
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Removed all references to dict_t xdata_from_req which is
allocated but not used anywhere. It is also not cleaned up
and hence causes a memory leak.
Change-Id: I2edb857696191e872ad12a12efc36999626bacc7
fixes: bz#1659432
Signed-off-by: N Balachandran <nbalacha@redhat.com>
The lock clearing procedure was kicked in only in
getxattr context. We need it to work the same way
if it's triggered via fgetxattr (as is the case
with interrupt handling).
Also cleaned up the instrumentation a bit (more logs,
proper management of allocated data).
updates: #465
Change-Id: Icfca26ee181da3b8e15ca3fcf61cd5702e2730c8
Signed-off-by: Csaba Henk <csaba@redhat.com>
Just looked at posix.c and related code and performed
some changes and cleanups. The only important one is #3 below,
but surely the others (#2 and #4) need careful review.
Changes to other files are as they were related to code paths
in posix.c.
I'll send a separate patch for other posix related files.
Main changes:
1. Proper initializtion for parameters, where it made sense.
2. Logged outside the lock in several places.
3. Moved from CALLOC to MALLOC where it made sense.
4. Aligned structures.
5. moved dictionary functions to use _sizen where possible.
(dict_get() -> dict_get_sizen() for example)
Compile-tested only!
Change-Id: Ia84699fb495e06d095339c91c1ba770d1393bb6c
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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>
These xlators are now removed from build as per discussion/announcement
done at https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html
* move rot-13 to playground, as it is used only as demo
purpose, and is documented in many places.
* Removed code of below xlators:
- cluster/stripe
- cluster/tier
- features/changetimerecorder
- features/glupy
- performance/symlink-cache
- encryption/crypt
- storage/bd
- experimental/posix2
- experimental/dht2
- experimental/fdl
- experimental/jbr
updates: bz#1635688
Change-Id: I1d2d63c32535e149bc8dcb2daa76236c707996e8
Signed-off-by: Amar Tumballi <amarts@redhat.com>
* Remove the options to load old symbol.
* keep only 'xlator_api' symbol from being exported using xlator.sym
* add xlator_api to all the xlators where its missing
NOTE: This covers all the xlators which has at least a test case
to validate its loading. If there is a translator, which doesn't
have any test, then we should probably remove that from codebase.
fixes: #164
Change-Id: Ibcdc8c9844cda6b4463d907a15813745d14c1ebb
Signed-off-by: Amar Tumballi <amarts@redhat.com>
symlink-cache was written as an experiment to reduce the load
on 'build' systems, which keep doing symlink resolution to get
the proper header files. But since last 6+ years, there was no
way to add it to the volfile using gluster cli, and hence was
not supported anymore. As it is not maintained, and as announced
on [1], we are planning to remove it from the build system.
[1]- https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html
updates: bz#1635688
Change-Id: Iaa25069bceed04cf65f79a4b4a02c05cee848eb5
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Problem: In changelog xlator after destroying listener it call's
unlink to delete changelog socket file but socket file
reference is not cleaned up from process memory
Solution: 1) To cleanup reference completely from process memory
serialize transport cleanup for changelog and then
unlink socket file
2) Brick xlator will notify GF_EVENT_PARENT_DOWN to next
xlator only after cleanup all xprts
Test: To test the same run below steps
1) Setup some volume and enable brick mux
2) kill anyone brick with gf_attach
3) check changelog socket for specific to killed brick
in lsof, it should cleanup completely
fixes: bz#1600145
Change-Id: Iba06cbf77d8a87b34a60fce50f6d8c0d427fa491
Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
- this->itable always needs to be allocated, hence move it outside
afr_selfheal_daemon_init().
- Invoke afr_selfheal_daemon_init() only for self-heal daemon case.
- remove redundant itable allocation in afr_discover().
- destroy itable in fini.
Updates bz#1193929
Change-Id: Ib28b50b607386f5a5aa7d2f743c8b506ccb10eae
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* 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>
Since rename/link fops on a file will not change any data in it, it should
not update the read_subvol values in the inode_ctx, which interprets the
data & metadata readable subvols for that file. The old read_subvol values
should be retained even after the rename/link operations.
Change-Id: I068044a426823a566f5bea8aa063cd689199d6dd
fixes: bz#1657783
Signed-off-by: karthik-us <ksubrahm@redhat.com>
Problem reported by Coverity: Leak of memory or pointers to
system resources.
Deallocate the memory pointed to by xattr_serz as the memory
reference is not stored anywhere.
Fixes CID: 1124760, 124787, 1382418
Change-Id: Ib9c2ef28c52e2d43de2552cfd959a98b26272bc1
updates: bz#789278
Signed-off-by: Bhumika Goyal <bgoyal@redhat.com>
Rename the identifiers, bit-rot-server to bit-rot in bit-rot.c & write-ahead to
write-behind in write-behind.c to ensure GD2 understands the options
Change-Id: Id271ae97de2e54f4e30174482c4e1fb6afc728d3
Fixes: #164
Signed-off-by: rishubhjain <rishubhjain47@gmail.com>
Based on the proposal to remove few features as they are not
actively maintained [1], removing crypt translator from the build.
[1] - https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html
Crypt xlator helped in on-disk / at-rest encryption of data. But
currently as there are no maintainers for this, planning to remove
it from master codebase. We are planning to host these experimental/
tech-preview xlators in another repository, so people who want to
contribute can still use the bits.
updates: bz#1635688
Change-Id: I7f2453907a595c34f635a88c49aab0845369c6e7
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Problem: posix_fini sends a cancellation request to health_check
thread and cleanup priv without ensuring health_check thread
is running
Solution: Make health_check && disk_space thread joinable and call
gf_thread_cleanup_xint to wait unless thread is not finished
Change-Id: I4d37b08138766881dab0922a47ed68a2c3411f13
fixes: bz#1636570
Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
get_mux_limit_per_process () reads the global option dictionary and in
case it doesn't find out a key, assumes that
cluster.max-bricks-per-process option isn't configured however the
default value should be picked up in such case.
Change-Id: I35dd8da084adbf59793d58557e818d8e6c17f9f3
Fixes: bz#1656951
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
stats from prefetched dentries should be invalidated only if the
files pointed to those dentries were written in the window of
prefetching. Otherwise its safe to use these stats.
Change-Id: I9ea5aeea4c75dfa03387fca32c626cb4e693290d
Signed-off-by: Raghavendra Gowdappa <rgowdapp@redhat.com>
Fixes: bz#1656348
Since glusterd2 don't maintain the xlator option details in code, it
directly reads the xlators options table from `*.so` files. To support
enable and disable of xlator new option added to the option table with
the name same as xlator name itself.
This change will not affect the functionality with glusterd1.
Change-Id: I23d9e537f3f422de72ddb353484466d3519de0c1
updates: #302
Signed-off-by: Aravinda VK <avishwan@redhat.com>
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>
We still use gnfs on our side, so do a little work to support
server.all-squash. Just like server.root-squash, it's also a
volume wide option. Also see bz#1285126
$ gluster volume set <VOLNAME> server.all-squash on
Note: If you enable server.root-squash and server.all-squash
at the same time, only server.all-squash works. Please refer
to following table
+---------------+-----------------+---------------------------+
| |all_squash | no_all_squash |
+-------------------------------------------------------------+
| | |anonuid/anongid for root |
|root_squash |anonuid/anongid |useruid/usergid for no-root|
+-------------------------------------------------------------+
|no_root_squash |anonuid/anongid |useruid/usergid |
+-------------------------------------------------------------+
Updates bz#1285126
Signed-off-by: Xie Changlong <xiechanglong@cmss.chinamobile.com>
Signed-off-by: Xue Chuanyu <xuechuanyu@cmss.chinamobile.com>
Change-Id: Iea043318fe6e9a75fa92b396737985062a26b47e
While glusterd has an infra to allow post install of spec to bring it up
in the interim upgrade mode to allow all the volfiles to be regenerated
with the latest executable, in container world the same methodology is
not followed as container image always point to the specific gluster rpm
and gluster rpm doesn't go through an upgrade process.
This fix does the following:
1. If glusterd.upgrade file doesn't exist, regenerate the volfiles
2. If maximum-operating-version read from glusterd.upgrade doesn't match
with GD_OP_VERSION_MAX, glusterd detects it to be a version where new
options are introduced and regenerate the volfiles.
Tests done:
1. Bring up glusterd, check if glusterd.upgrade file has been created
with GD_OP_VERSION_MAX value.
2. Post 1, restart glusterd and check glusterd hasn't regenerated the
volfiles as there's is no change in the GD_OP_VERSION_MAX vs the
op_version read from the file.
3. Bump up the GD_OP_VERSION_MAX in the code by 1 and post compilation
restart glusterd where the volfiles should be again regenerated.
Note: The old way of having volfiles regenerated during an rpm upgrade
is kept as it is for now but eventually this can be sunset later.
Change-Id: I75b49a1601c71e99f6a6bc360dd12dd03a96414b
Fixes: bz#1651463
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Summary: The json being output by the io-stats debug xlator
quotes the numbers. This is not necessary and makes parsing
in strongly typed languages more difficult.
Change-Id: I3ac13700e2c52dbdc29d0bcdd39896d7871f36fe
fixes: bz#1654521
Signed-off-by: Chris Holcombe <xfactor973@gmail.com>
In a previous patch (https://review.gluster.org/20769) we've
added the key length to be passed to dict_* funcs, to remove the need
to strlen() it. This patches makes use of these functions over
this whole file.
Please review carefully, as there are many many changes there.
Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Change-Id: I2e1ee340300ec330936c31becda6bfe1b6533281
Commit 6821cec changed this default from 0 to 250 in the option table,
however the same wasn't done in the global option table.
Change-Id: I6075f2ebc51e839510d6492fb62e706deb2d845b
Fixes: bz#1652118
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Current profile commands use the op_state machine framework.
Porting it to use the mgmt_v3 framework.
The following tests were performed on the patch:
case 1:
1. On a 3 node cluster, created and started 3 volumes
2. Mounted all the three volumes and wrote some data
3. Started profile operation for all the volumes
4. Ran "gluster v status" from N1,
"gluster v profile <volname1> info" form N2,
"gluster v profile <volname2> info" from N3 simultaneously in a
loop for around 10000 times
5. Didn't find any cores generated.
case 2:
1. Repeat the steps 1,2 and 3 from case 1.
2. Ran "gluster v status" from N1,
"gluster v profile <volname1> info" form N2(terminal 1),
"gluster v profile <volname2> info" from N2(terminal 2)
simultaneously in a loop.
3. No cores were generated.
fixes: bz#1654181
Change-Id: I83044cf5aee3970ef94066c89fcc41783ed468a6
Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
Problem:
A single event-thread causes performance issues in the system.
Solution:
Bump up event-threads to 2 to make the system more performant.
This helps in making the system more responsive and helps avoid the
ping-timer-expiry problem as well. However, setting the event-threads
to 2 is not the only thing required to avoid ping-timer-expiry issues.
Change-Id: Idb0fd49e078db3bd5085dd083b0cdc77b59ddb00
fixes: bz#1653277
Signed-off-by: Milind Changire <mchangir@redhat.com>
io-cache xlator has been skipping xdata references when the
date needs to be read into page cache. This patch fixes the same.
Note: similar changes may be needed for other fops as well
which are handled by io-cache.
Change-Id: I28d73d4ba471d13eb55d0fd0b5197d222df77a2a
updates: bz#1648768
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Problem: glusterd should not try to acquire locks on any resources,
when it already received a SIGTERM and cleanup is started. Otherwise
we might hit segfault, since the thread which is going through
cleanup path will be freeing up the resouces and some other thread
might be trying to acquire locks on freed resources.
Solution: perform rcu_read_lock/unlock() under cleanup_lock mutex.
fixes: bz#1654270
Change-Id: I87a97cfe4f272f74f246d688660934638911ce54
Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
Problem: 1) server_init does not cleanup allocate resources
while it is failed before return error
2) dict leak at the time of graph destroying
Solution: 1) free resources in case of server_init is failed
2) Take dict_ref of graph xlator before destroying
the graph to avoid leak
Change-Id: I9e31e156b9ed6bebe622745a8be0e470774e3d15
fixes: bz#1654917
Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* The scrubber was comparing the checksum of the file that it
calculated (by reading the file) with the on disk signature
(stored via xattr) wrongly. It was using strlen to calculate
the signature, while the actual length of the signature is
given by the brick. Just use the actual length that the brick
provides instead of trying to calculate the signature length via
strlen API.
* In posix, gfid2path was using the same string that contains the
list of all the xattrs of file to save the value of the gfid2path
xattr as well. This causes confusion when gfid2path xattr is queried
by scrubber for getting the actual path of a corrupted file. Use
separate string to fetch the value of the xattr instead of the string
that contains the list of xattrs.
Change-Id: I2d664ab524d2b312233476cb35863dde3122e9a9
fixes: bz#1654805
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Problem:
If parent dir is in split-brain or has dirty xattrs set, and the file
has gfid missing on one of the bricks, then name heal won't assign the
gfid.
Fix:
Use the brick we select the gfid from as the 'source'.
Note: Problem was found while trying to debug a split-brain issue on
Cynthia Zhou's setup.
updates: bz#1637249
Change-Id: Id088d4f0fb017aa35122de426654194e581ed742
Reported-by: Cynthia Zhou <cynthia.zhou@nokia-sbell.com>
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Internal fops (with frame->root->pid < 0) are used to heal
or move data and maintains data integrity. That is they do not
modify client data which holds the lease. Hence no need to recall
Lease for such fops.
Note: Like for locks, we would need rebalance and self-heal
daemon process to heal lease state as well.
Change-Id: I8988693fef8d00e17c19dcc842e2238f9eb5ab48
updates: bz#1648768
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
The inode ctx for nfs xlator is set with help nfs_fix_generation.
But currently gnfs is crashing because inode_ctx is becoming null
nfs3_resolve_inode_hard() is used to perform a lookup on entire
path and looks like function is missing to set the ctx for inode.
This patch will set ctx for the inode which it looked on.
Change-Id: I464fa7f78df1bae990ebe97de8ccf6d5fb74fc9f
fixes: bz#1651439
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
The issue pertains to checking if conf is NULL in BUMP_FOP
but not providing that safety in io_stats_release when using
conf to lock and bump nr_opens.
This is now corrected to check if conf is non-NULL before
attempting the lock and bump nr_opens.
Tested with local clang analyzer to ensure this fixes the
problem.
Change-Id: Iffd6a97c2060d0a6930a8dc5914b1956c192cab1
Updates: bz#1622665
Signed-off-by: ShyamsundarR <srangana@redhat.com>
It seems there were quite a few unused enums (that in turn
cause unndeeded memory allocation) in some xlators.
I've removed them, hopefully not causing any damage.
Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Change-Id: I8252bd763dc1506e2d922496d896cd2fc0886ea7
The warning by clang is due to the fact that we check for
frame->root to be NULL, but in stack unwind, we ignore the
same.
If frame is non-NULL then frame->root is non-NULL as frame
creation ensures this. Further, across the code we do not
check both frame and frame->root for validity.
Hence to fix these clang issues, removing the check for
frame->root in the various functions.
NOTE: Initially clang reported 14 issues in the file, but
post commit 6eabefe6 the number reduced to 4, unsure why as
that commit does not address this issue.
Change-Id: I04b63f2d006a1f95773aae9f904b4bd3d5118e62
Updates: bz#1622665
Signed-off-by: ShyamsundarR <srangana@redhat.com>
A single global per program queue is contended by all request handler
threads and event threads. This can lead to high contention. So,
reduce the contention by providing each request handler thread its own
private queue.
Thanks to "Manoj Pillai"<mpillai@redhat.com> for the idea of pairing a
single queue with a fixed request-handler-thread and event-thread,
which brought down the performance regression due to overhead of
queuing significantly.
Thanks to "Xavi Hernandez"<xhernandez@redhat.com> for discussion on
how to communicate the event-thread death to request-handler-thread.
Thanks to "Karan Sandha"<ksandha@redhat.com> for voluntarily running
the perf benchmarks to qualify that performance regression introduced
by ping-timer-fixes is fixed with this patch and patiently running
many iterations of regression tests while RCAing the issue.
Thanks to "Milind Changire"<mchangir@redhat.com> for patiently running
the many iterations of perf benchmarking tests while RCAing the
regression caused by ping-timer-expiry fixes.
Change-Id: I578c3fc67713f4234bd3abbec5d3fbba19059ea5
Fixes: bz#1644629
Signed-off-by: Raghavendra Gowdappa <rgowdapp@redhat.com>
