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* glusterfs: Use gcc builtin ATOMIC operator to increase/decreate refcount.Mohit Agrawal2017-12-129-162/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: In glusterfs code base we call mutex_lock/unlock to take reference/dereference for a object.Sometime it could be reason for lock contention also. Solution: There is no need to use mutex to increase/decrease ref counter, instead of using mutex use gcc builtin ATOMIC operation. Test: I have not observed yet how much performance gain after apply this patch specific to glusterfs but i have tested same with below small program(mutex and atomic both) and get good difference. static int numOuterLoops; static void * threadFunc(void *arg) { int j; for (j = 0; j < numOuterLoops; j++) { __atomic_add_fetch (&glob, 1,__ATOMIC_ACQ_REL); } return NULL; } int main(int argc, char *argv[]) { int opt, s, j; int numThreads; pthread_t *thread; int verbose; int64_t n = 0; if (argc < 2 ) { printf(" Please provide 2 args Num of threads && Outer Loop\n"); exit (-1); } numThreads = atoi(argv[1]); numOuterLoops = atoi (argv[2]); if (1) { printf("\tthreads: %d; outer loops: %d;\n", numThreads, numOuterLoops); } thread = calloc(numThreads, sizeof(pthread_t)); if (thread == NULL) { printf ("calloc error so exit\n"); exit (-1); } __atomic_store (&glob, &n, __ATOMIC_RELEASE); for (j = 0; j < numThreads; j++) { s = pthread_create(&thread[j], NULL, threadFunc, NULL); if (s != 0) { printf ("pthread_create failed so exit\n"); exit (-1); } } for (j = 0; j < numThreads; j++) { s = pthread_join(thread[j], NULL); if (s != 0) { printf ("pthread_join failed so exit\n"); exit (-1); } } printf("glob value is %ld\n",__atomic_load_n (&glob,__ATOMIC_RELAXED)); exit(0); } time ./thr_count 800 800000 threads: 800; outer loops: 800000; glob value is 640000000 real 1m10.288s user 0m57.269s sys 3m31.565s time ./thr_count_atomic 800 800000 threads: 800; outer loops: 800000; glob value is 640000000 real 0m20.313s user 1m20.558s sys 0m0.028 Change-Id: Ie5030a52ea264875e002e108dd4b207b15ab7cc7 Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
* core/memacct: save allocs in mem_acct_rec listN Balachandran2017-12-073-1/+42
| | | | | | | | | | | | | | | With configure --enable-debug, add all object allocations to a list in the corresponding mem_acct_rec. This allows us to see all objects of a particular type and allows for additional debugging in case of memory leaks. This is not compiled in by default and must be explicitly enabled. It is intended to be used by developers. Change-Id: I7cf2dbeadecf994423d7e7591e85f18d2575cce8 BUG: 1522662 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* Fixes gNFSd gf_update_latency crashesRichard Wareing2017-12-071-0/+7
| | | | | | | | | | | | | | | | | | | | | | | Summary: - Per title, does a bounds check on the frame->op and bails from the function if it's invalid preventing the crash Test Plan: Prove tests Reviewers: dph, jackl Reviewed By: jackl FB-commit-id: e67cc15 Change-Id: If1a5a9c0630573d4a6615050a9114ccf532551c7 BUG: 1522847 Signed-off-by: Kevin Vigor <kvigor@fb.com> Reviewed-on: https://review.gluster.org/16847 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Shreyas Siravara <sshreyas@fb.com>
* performance/io-threads: Reduce the number of timing calls in iot_workerMax Rijevski2017-12-071-0/+4
| | | | | | | | | | | | | | | | | Summary: - Reduce the amount of unnecessary timing calls in iot_worker servicing. - The current logic is unnecessarily accurate and hurts performance for many small FOPS. Change-Id: I6db4f1ad9a48d9d474bb251a2204969061021954 BUG: 1522950 Signed-off-by: Shreyas Siravara <sshreyas@fb.com> Reviewed-on: http://review.gluster.org/16081 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kevin Vigor <kvigor@fb.com>
* libglusterfs: specify ctx in gf_log_set_loglevelZhang Huan2017-12-063-9/+5
| | | | | | | | | specify ctx in gf_log_set_loglevel, instead of getting it from a thread specific variable. Change-Id: I498f826e8e32231235a6b0005026a27c327727fd BUG: 1521213 Signed-off-by: Zhang Huan <zhanghuan@open-fs.com>
* metrics: provide options to dump metrics from xlatorsAmar Tumballi2017-12-069-18/+331
| | | | | | | | | | * Introduce xlator methods to allow dumping of metrics * Separate options to get the metrics dumped in a path Updates #168 Change-Id: I7df80df33b71d6f449f03c2332665b4a45f6ddf2 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* rio/everywhere: add icreate/namelink fopSusant Palai2017-12-0514-1/+339
| | | | | | | | | | | | | | | | | | | | | icreate creates inode, while namelink links the basename to it's parent gfid. For now mkdir is the primary user of these fops. Better distribution is acheived by creating the inode on ,(say) mds1 and linking the basename to it's parent gfid on mds2. The inode serves readdirp, stat etc. More details about the fops are present at: https://review.gluster.org/#/c/13395/3/design/DHT2/DHT2_Icreate_Namelink_Notes.md This backport of three patches from experimental branch. 1- https://review.gluster.org/#/c/18085/ 2- https://review.gluster.org/#/c/18086/ 3- https://review.gluster.org/#/c/18094/ Updates gluster/glusterfs#243 Change-Id: I1bd3d5a441a3cfab1acfeb52f15c6c867d362592 Signed-off-by: Susant Palai <spalai@redhat.com>
* libglusterfs: Add put fopPoornima G2017-12-0514-0/+271
| | | | | | | | | | | | | | | | | Problem: It had been a longtime request to implement put fop in gluster. put fop in gluster may not have the exact sementics of HTTP PUT, but can be easily extended to do so. The subsequent patches, will contain more semantics on the put fop and its guarentees. Why compound fop framework is not used for put? Compound fop framework currently doesn't allow compounding of entry fop and inode fops, i.e. fops on multiple inodes cannot be combined in compound fop. Updates #353 Change-Id: Idb7891b3e056d46d570bb7e31bad1b6a28656ada Signed-off-by: Poornima G <pgurusid@redhat.com>
* libglusterfs: use rwlock for fdtableZhang Huan2017-11-302-25/+24
| | | | | | | | | | | To resolve a fd from client requests, need to take a mutex lock for the fdtable to do the lookup. When a client is busy doing read and write, the mutex lock could introduce contention. Therefore, use rwlock instead of mutex to reduce the contention. Change-Id: Ic833aed738a178a7ea1abafed7eb13814989d28c BUG: 1518582 Signed-off-by: Zhang Huan <zhanghuan@open-fs.com>
* xlator: provide a xlator_api_t structure to include all exported optionsAmar Tumballi2017-11-304-37/+268
| | | | | | | | | | each translator from now on can have just 1 symbol exported called 'xlator_api', which has all the required fields in it. Updates: #164 Change-Id: I48d54f5ec59fee842b1d55877e3ac5e9ec9b6bdd Signed-off-by: Amar Tumballi <amarts@redhat.com>
* cluster-syncop: Address comments in 3ad68df725ac32f83b5ea7c0976e2327e7037c8cPranith Kumar K2017-11-291-2/+4
| | | | | Change-Id: I325f718c6c440076c9d9dcd5ad1a0c6bde5393b1 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* libglusterfs: fix the call_stack_set_group() functionCsaba Henk2017-11-242-9/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - call_stack_set_group() will take the ownership of passed buffer from caller; - to indicate the change, its signature is changed from including the buffer directly to take a pointer to it; - either the content of the buffer is copied to the groups_small embedded buffer of the call stack, or the buffer is set as groups_large member of the call stack; - the groups member of the call stack is set to, respectively, groups_small or groups_large, according to the memory management conventions of the call stack; - the buffer address is overwritten with junk to effectively prevent the caller from using it further on. Also move call_stack_set_group to stack.c from stack.h to prevent "defined but not used [-Wunused-function]" warnings (not using it anymore in call_stack_alloc_group() implementation, which saved us from this so far). protocol/server: refactor gid_resolve() In gid_resolve there are two cases: either the gid_cache_lookup() call returns a value or not. The result is caputured in the agl variable, and throughout the function, each particular stage of the implementation comes with an agl and a no-agl variant. In most cases this is explicitly indicated via an if (agl) { ... } else { ... } but some of this branching are expressed via goto constructs (obfuscating the fact we stated above, that is, each particular stage having an agl/no-agl variant). In the current refactor, we bring the agl conditional to the top, and present the agl/non-agl implementations sequentially. Also we take the opportunity to clean up and fix the agl case: - remove the spurious gl.gl_list = agl->gl_list; setting, as gl is not used in the agl caae - populate the group list of call stack from agl, fixing thus referred BUG. Also fixes BUG: 1513920 Change-Id: I61f4574ba21969f7661b9ff0c9dce202b874025d BUG: 1513928 Signed-off-by: Csaba Henk <csaba@redhat.com>
* libglusterfs: Handle FS errors gracefullyPranith Kumar K2017-11-222-93/+167
| | | | | | | | | | | | | | | Problem: FS sometimes doesn't give the expected return values. We need our common functions to guard against this. Example BUG: https://bugzilla.redhat.com/show_bug.cgi?id=864401 Fix: When the return value is not as per specification, change the return value to -1 and errno to EIO BUG: 1469487 Change-Id: I14739ab2e5ae225b1a91438b87f8928af56f2934 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* cluster-syncop: Implement tiebreaker inodelk/entrylkPranith Kumar K2017-11-222-0/+103
| | | | | | | | | | | | In this implementation, inodelk/entrylk will be tried for the subvols given with trylock. In this attempt if all locks are obtained, then inodelk is successful, otherwise, if it gets success on the first available subvolume, then it will go for blocking lock, where as other subvolumes will not try and this acts as tie-breaker. Updates gluster/glusterfs#354 Change-Id: Ia2521b9ccb81a42bd6104ab21f610f761ba2b801 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* timer: Fix possible race during cleanupSoumya Koduri2017-11-211-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As mentioned in bug1509189, there is a possible race between gf_timer_cancel(), gf_timer_proc() and gf_timer_registry_destroy() leading to use_after_free. Problem: 1) gf_timer_proc() is called, locks reg, and gets an event. It unlocks reg, and calls the callback. 2) Meanwhile gf_timer_registry_destroy() is called, and removes reg from ctx, and joins on gf_timer_proc(). 3) gf_timer_call_cancel() is called on the event being processed. It cannot find reg (since it's been removed from reg), so it frees event. 4) the callback returns into gf_timer_proc(), and it tries to free event, but it's already free, so double free. Solution: The fix is to bail out in gf_timer_cancel() when registry is not found. The logic behind this is that, gf_timer_cancel() is called only on any existing event. That means there was a valid registry earlier while creating that event. And the only reason we cannot find that registry now is that it must have got set to NULL when context cleanup is started. Since gf_timer_proc() takes care of releasing all the remaining events active on that registry, it seems safe to bail out in gf_timer_cancel(). Change-Id: Ia9b088533141c3bb335eff2fe06b52d1575bb34f BUG: 1509189 Reported-by: Daniel Gryniewicz <dang@redhat.com> Signed-off-by: Soumya Koduri <skoduri@redhat.com>
* libglusterfs:checked return coverity fixSubha sree Mohankumar2017-11-211-1/+8
| | | | | | | | | | Problem:Calling "gf_thread_create" without checking return value. Fix:The return value is saved and checked if gf_thread_create fails. Change-Id: Ibdaac1c90a1a8369e92ade50825598b041063da8 BUG: 789278 Signed-off-by: Subha sree Mohankumar <smohanku@redhat.com>
* rpc : Change the way client uuid is builtPoornima G2017-11-201-24/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Today the main users of client uuid are protocol layers, locks, leases. Protocol layers requires each client uuid to be unique, even across connects and disconnects. Locks and leases on the server side also use the same client uid which changes across file migrations. Which makes the graph switch and file migration tedious for locks and leases. file migration across bricks becomes difficult as client uuid for the same client, is different on the other brick. The exact set of issues exists for leases as well. Solution would be to introduce a constant in the client-uid string which the locks and leases can use to identify the owner client across bricks. Client uuid currently: %s(ctx uuid)-%s(protocol client name)-%d(graph id)%s(setvolume count/reconnect count) Proposed Client uuid: "CTX_ID:%s-GRAPH_ID:%d-PID:%d-HOST:%s-PC_NAME:%s-RECON_NO:%s" - CTX_ID: This is will be constant per client. - GRAPH_ID, PID, HOST, PC_NAME(protocol client name), RECON_NO(setvolume count) remains the same. Change-Id: Ia81d57a9693207cd325d7b26aee4593fcbd6482c BUG: 1369028 Signed-off-by: Susant Palai <spalai@redhat.com>
* dict: Fix several coverity issues in dictMohit Agrawal2017-11-153-10/+37
| | | | | | | | | | | | | This patch fixes issues 230,592,593,110,63 from [1] [1] https://download.gluster.org/pub/gluster/glusterfs/static-analysis/master/glusterfs-coverity/2017-10-30-9aa574a5/html/ Note: Resolve FORWARD_NULL coverity issue in glusterfs_ctx_new is also fixed with this patch. BUG: 789278 Change-Id: Ic4199a144a14cc9ead7366fb1c9699197141bc86 Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
* libglusterfs/options: Add new member 'setkey' to xlator optionsKaushal M2017-11-151-0/+4
| | | | | | | | | | | | | | | | | The 'setkey' will be used as the key by GD2 when setting the option during volgen. 'setkey' also supports using varstrings. This is mainly to be used for options, which use a different key for 'volume set' and in volfiles. For eg. the 'auth.*' options of protocol/server. The protocol/server xlator has been updated to make use of this for the auth.allow and auth.reject options. Updates #302 Change-Id: I1fd2fd69625c9db48595bd3f494c221625255169 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* libglusterfs/atomic: Improved atomic supportXavier Hernandez2017-11-141-72/+425
| | | | | | | | | | | | | | | | This patch solves a detection problem in configure.ac that prevented that compilation detects builtin __atomic or __sync functions. It also adds more atomic types and support for other atomic functions. An special case has been added to support 64-bit atomics on 32-bit systems. The solution is to fallback to the mutex solution only for 64-bit atomics, but smaller atomic types will still take advantage of builtins if available. Change-Id: I6b9afc7cd6e66b28a33278715583552872278801 BUG: 1510397 Signed-off-by: Xavier Hernandez <jahernan@redhat.com>
* libglusterfs/gfdb:coverity issue fixSubha sree Mohankumar2017-11-131-2/+1
| | | | | | | | | | | Coverity Id:719,748,761 problem : The value of "ret" is overwritten in init_db and add_conection_node Change-Id: Iade8ca8d61c5e25e8c311b1375219f5f61d51bc3 BUG: 789278 Signed-off-by: Subha sree Mohankumar <smohanku@redhat.com>
* libglusterfs:UNUSED VALUE coverity fixSubha sree Mohankumar2017-11-131-0/+1
| | | | | | | | | | | Problem : Overwriting previous write to "ret" with value "EVENT_SEND_OK" before itr can be used. Fix: The value of ret is used in out. Change-Id: I2cdb32e441c85c94de30de89a7a4121fd54d1acd BUG: 789278 Signed-off-by: Subha sree Mohankumar <smohanku@redhat.com>
* Coverity Issue: PW.INCLUDE_RECURSION in several filesGirjesh Rajoria2017-11-096-7/+0
| | | | | | | | | | | | | | Coverity ID: 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 423, 424, 425, 426, 427, 428, 429, 436, 437, 438, 439, 440, 441, 442, 443 Issue: Event include_recursion Removed redundant, recursive includes from the files. Change-Id: I920776b1fa089a2d4917ca722d0075a9239911a7 BUG: 789278 Signed-off-by: Girjesh Rajoria <grajoria@redhat.com>
* xlator: add more metrics per fopsAmar Tumballi2017-11-084-0/+47
| | | | | | | | | | | Make sure to handle these counters in STACK_WIND/UNWIND macro, and keep the counters as part of xlator_t structure itself, to provide infra to monitoring. Updates #137 Change-Id: Ib54d45e2321c2b095dac5810c37e6cdffe1f71b7 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* libglusterfs: fix (some) silliness in timer.cJeff Darcy2017-11-071-2/+30
| | | | | | | | | | This addresses two issues. First is that we currently keep traversing the timer list even when it's no longer possible for us to find a timer that's ready to fire. Second is that we sleep a full second even when the next timer is due sooner. Change-Id: I178a460d0176dbb45f972c62ee94c6df66d92ca5 Signed-off-by: Jeff Darcy <jdarcy@fb.com>
* stack: change gettimeofday() to clock_gettime()Amar Tumballi2017-11-069-216/+200
| | | | | | | | | | | | For achieving the above, needed below changes too. * more sanity into how 'frame->op' is assigned. * infra to have 'stats' as separate section in 'xlator_t' structure Updates #137 Change-Id: I36679bf9577f3ed00a695b4e7d92870dcb3db8e1 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* cluster/ec: create eager-lock option for non-regular filesXavier Hernandez2017-11-051-0/+2
| | | | | | | | | A new option is added to allow independent configuration of eager locking for regular files and non-regular files. Change-Id: I8f80e46d36d8551011132b15c0fac549b7fb1c60 BUG: 1502610 Signed-off-by: Xavier Hernandez <jahernan@redhat.com>
* global options: add a sample option to handleAmar Tumballi2017-11-034-5/+50
| | | | | | | Fixes #303 Change-Id: Icdaa804711c43c65b9684f2649437aae1b5c1ed5 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* Add framework for global xlator in graphAmar Tumballi2017-11-033-2/+50
| | | | | | | Updates #303 Change-Id: Id0b9050c93ea87532dc80b4fda650c5663d285bd Signed-off-by: Amar Tumballi <amarts@redhat.com>
* core: make gf_boolean_t a C99 bool instead of an enumJeff Darcy2017-11-031-6/+4
| | | | | | | | | | | | This reduces the space used from four bytes to one, and allows new code to use familiar C99 types/values interoperably with our old cruft. It does *not* change current declarations or code; that will be left for a separate - much larger - patch. Updates: #80 Change-Id: I5baedd17d3fb05b38f0d8b8bb9dd62824475842e Signed-off-by: Jeff Darcy <jdarcy@fb.com>
* gluster: IPv6 single stack supportKevin Vigor2017-10-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | Summary: - This diff changes all locations in the code to prefer inet6 family instead of inet. This will allow change GlusterFS to operate via IPv6 instead of IPv4 for all internal operations while still being able to serve (FUSE or NFS) clients via IPv4. - The changes apply to NFS as well. - This diff ports D1892990, D1897341 & D1896522 to the 3.8 branch. Test Plan: Prove tests! Reviewers: dph, rwareing Signed-off-by: Shreyas Siravara <sshreyas@fb.com> Change-Id: I34fdaaeb33c194782255625e00616faf75d60c33 BUG: 1406898 Reviewed-on-3.8-fb: http://review.gluster.org/16059 Reviewed-by: Shreyas Siravara <sshreyas@fb.com> Tested-by: Shreyas Siravara <sshreyas@fb.com>
* gfproxyd: Let glusterd manage gfproxy daemonPoornima G2017-10-182-0/+3
| | | | | | | Updates: #242 BUG: 1428063 Change-Id: Iaaf2edf99b2ecc75f6d30762c752a6d445c1c826 Signed-off-by: Poornima G <pgurusid@redhat.com>
* stack.h: make sure 'oldgroups' is never nullAmar Tumballi2017-10-181-1/+12
| | | | | | | | If 'oldgroups' is null, it can lead to a crash. Change-Id: I7a4f71256b07dc0ca3b988cad3694c21b150c99e BUG: 789278 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* glusterd : introduce timer in mgmt_v3_lockGaurav Yadav2017-10-172-1/+2
| | | | | | | | | | | | | | | | Problem: In a multinode environment, if two of the op-sm transactions are initiated on one of the receiver nodes at the same time, there might be a possibility that glusterd may end up in stale lock. Solution: During mgmt_v3_lock a registration is made to gf_timer_call_after which release the lock after certain period of time Change-Id: I16cc2e5186a2e8a5e35eca2468b031811e093843 BUG: 1499004 Signed-off-by: Gaurav Yadav <gyadav@redhat.com>
* build: make it possible to build cleanly 2x in a rowNiels de Vos2017-10-131-1/+2
| | | | | | | | | | | | | | | | | 'make clean' does not cleanup everything, and some of the files get cleaned too eagerly. Several files are being packaged in a 'make dist' tarball, that get rebuild each time anyway. Specifically, this change prevents - libglusterfs/src/generator.pyc from laying around - keeping rpc/xdr/gen/*.x symlinks - modifying tests/basic/{fuse,gfapi}/Makefile each run - including tests/env.rc and events/src/eventtypes.py in the tarball Change-Id: I774dd1abf3a9d3b6a89b938cf6ee7d7792c59a82 BUG: 1501317 Reported-by: Patrick Matthäi <pmatthaei@debian.org> Signed-off-by: Niels de Vos <ndevos@redhat.com>
* protocol-auth: use the proper validation methodAmar Tumballi2017-10-122-2/+7
| | | | | | | | | | | Currently, server protocol's init and glusterd's option validation methods are different, causing an issue. They should be same for having consistent behavior Updates #175 Change-Id: Ibbf9a18c7192b2d77f9b7675ae7da9b8d2fe5de4 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* glusterd : fix client io-threads option for replicate volumesRavishankar N2017-10-091-0/+2
| | | | | | | | | | | | | | | | | | | Problem: Commit ff075a3d6f9b142911d25c27fd209838782bfff0 disabled loading client-io-threads for replicate volumes (it was set to on by default in commit e068c1997314046658dd502e9118dab32decf879) due to performance issues but in doing so, inadvertently failed to load the xlator even if the user explicitly enabled the option using the volume set command. This was despite returning returning sucess for the volume set. Fix: Modify the check in perfxl_option_handler() and add checks in volume create/add-brick/remove-brick code paths, tying it all to GD_OP_VERSION_3_12_2. Change-Id: Ib612973a999a7da818cc926f5c2601b1f0794fcf BUG: 1498570 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* cluster/ec: Improve performance with xattrop updateSunil Kumar Acharya2017-10-063-56/+126
| | | | | | | | | | | | Existing EC code updates the xattr on the subvolume in a sequential pattern resulting in very poor performance. With this fix EC now updates the xattr on the subvolume in parallel which improves the xattr update performance. BUG: 1445663 Change-Id: I3fc40d66db0b88875ca96a9fa01002ba386c0486 Signed-off-by: Sunil Kumar Acharya <sheggodu@redhat.com>
* storage/posix: Adding implementation for posix_do_futimeskarthik-us2017-10-052-0/+10
| | | | | | | | | Adding the implementation for the posix_do_futimes function which is not complete in the current implementation and giving the ENOSYS error. Change-Id: I9cfc95a7ea293b0a2df8efd4ac80d0120b3120e4 BUG: 1350406 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* libglusterfs: Coverity Fix CONSTANT_EXPRESSION_RESULT in gf_string2int64Mohammed Azhar Padariyakam2017-09-291-7/+2
| | | | | | | | | | | | | Issue : "l <= 9223372036854775807L" is always true regardless of the values of its operands. This occurs as the logical operand of "if". Solution : Remove the comparison which always turns out to be true Fix : The if-condition was removed and the body inside the same was retained. Change-Id: Iba94d7f4f2dee85a180d10cdb7f7235b406cc400 BUG: 789278 Signed-off-by: Mohammed Azhar Padariyakam <mpadariy@redhat.com>
* libglusterfs: Coverity Issue NEGATIVE_RETURNSGirjesh Rajoria2017-09-291-9/+13
| | | | | | | | | | | | | Issue: Event negative_return_fn: Function "dup(handle->fd)" returns a negative number. Event negative_returns: "dup(handle->fd)" is passed to a parameter that cannot be negative. With this change value of dup(handle->fd) is stored in duped_fd & if condition checks the value of duped_fd is non-negative. Change-Id: I563d717108016d740ffa64fbe0929eb1e08c8f33 BUG: 789278 Signed-off-by: Girjesh Rajoria <grajoria@redhat.com>
* core: Verify pool pointer before destroying itAkarsha Rai2017-09-291-0/+3
| | | | | | | | | | Problem: Current code is not checking whether the pool pointer is null or not. Solution: Updated the code to verify pool pointer. Bug: 1496675 Change-Id: Ie1f2de4e4204fde15d2b1e3a966ea4c9e7b41534 Signed-off-by: Akarsha Rai <akrai@redhat.com>
* stack.h:PW.INCLUDE_RECURSIONSanju Rakonde2017-09-292-2/+0
| | | | | | | | | | | | | | | | | | | The headerfile globals.h is recursively adding itself. ( globals.h -> xlator.h -> stack.h -> globals.h). We are finding the source files which are including the header file globals.h and removing the inclusion line. I used git grep -l stack.h | xargs git grep globals.h -- to find out the files and removed the header file from all files except libglusterfs/src/xlator.h and libglusterfs/src/Makefile.am When I try to remove header file from libglusterfs/src/xlator.h I'm getting some errors. In libglusterfs/src/Makefile.am it is required for building RPMs. Change-Id: I537218c09ade6d7ea51717768b26563a247daf60 BUG: 789278 Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
* libglusterfs: fix a coverity error of type - PW.INCLUDE_RECURSIONKamal Mohanan2017-09-271-1/+0
| | | | | | | | | | Problem: xlator.h which is included at inode.h:32 includes itself. Solution: Delete the include statement. Change-Id: I304bbef5293a2fef0584773a1f8e61e838d7cbf1 BUG: 789278 Signed-off-by: Kamal Mohanan <kmohanan@redhat.com>
* mount/fuse: Make event-history feature configurableKrutika Dhananjay2017-09-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | ... and disable it by default. This is because having it disabled seems to improve performance. This could be due to the lock contention by the different epoll threads on the circular buff lock in the fop cbks just before writing their response to /dev/fuse. Just to provide some data - wrt ovirt-gluster hyperconverged environment, I saw an increase in IOPs by 12K with event-history disabled for randrom read workload. Usage: mount -t glusterfs -o event-history=on $HOSTNAME:$VOLNAME $MOUNTPOINT OR glusterfs --event-history=on --volfile-server=$HOSTNAME --volfile-id=$VOLNAME $MOUNTPOINT Change-Id: Ia533788d309c78688a315dc8cd04d30fad9e9485 BUG: 1467614 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
* libglusterfs: Fix openSUSE build errorAnoop C S2017-09-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GlusterFS failed during make on openSUSE Tumbleweed with the following error: Making all in fdl Making all in src CC logdump.o CC recon.o CC fdl.lo CC librecon.o CC libfdl.o CCLD gf_logdump CCLD gf_recon /usr/lib64/gcc/x86_64-suse-linux/7/../../../../lib64/libfl.so: undefined reference to `yylex' collect2: error: ld returned 1 exit status make[5]: *** [Makefile:618: gf_logdump] Error 1 make[5]: *** Waiting for unfinished jobs.... /usr/lib64/gcc/x86_64-suse-linux/7/../../../../lib64/libfl.so: undefined reference to `yylex' collect2: error: ld returned 1 exit status Reading through autoconf manual[1](see AC_PROG_LEX) reveals that LEXLIB is automatically set to appropriate value for the system. The reference to LEXLIB in automake file caused the above mentioned error on openSUSE. In particular, we do not bother about LEXLIB hereafter. [1] https://www.gnu.org/software/autoconf/manual/autoconf.html#Particular-Programs Change-Id: I9bfce80c9654b2e3bfb393b08c25e8ad3d79e449 BUG: 1493133 Signed-off-by: Anoop C S <anoopcs@redhat.com>
* libglusterfs: fix run.c demo modeCsaba Henk2017-09-071-15/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | run.c can be compiled into a standalone object file or a demo program with the appropriate defines for development purposes. This functionality was broken. We fix it and also clean it up: - call it "demo mode" not "test mode" as tests should come with verification of the results of the invocation which is not being done - add comments to the source explaining the feature - provide more comprehensive output in the demo program This change does not affect standard compilation and usage of run.c functionality. BUG: 1454590 Change-Id: I1ea618e3262bf6a4d9f79f6b59209438d5163244 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: https://review.gluster.org/17363 Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: Amar Tumballi <amarts@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* Fix warning on FreeBSD, show by -Wformat-extra-argsMichael Scherer2017-09-071-1/+1
| | | | | | | | | | | | | | The warning is specific to FreeBSD, since both Linux and NetBSD do trigger a different codepath. Change-Id: I3d2b374b6a39804942af076d7e0d130a76f869a2 BUG: 1488808 Signed-off-by: Michael Scherer <misc@redhat.com> Reviewed-on: https://review.gluster.org/18214 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Niels de Vos <ndevos@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* event/epoll: don't call handler for events received after a pollerrRaghavendra G2017-09-061-6/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | we register socket with EPOLLONESHOT, which means it has to be explicitly added back through epoll_ctl to receive more events. Normally we do this once the handler completes processing of current event. But event_select_on_epoll is one asynchronous codepath where socket can be added back for polling while an event on the same socket is being processed. event_select_on_epoll has a check whether an event is being processed in the form of slot->in_handler. But this check is not sufficient enough to prevent parallel events as slot->in_handler is not atomically incremented with respect to reception of the event. This means following imaginary sequence of events can happen: * epoll_wait returns with a POLLERR - say POLLERR1 - on a socket (sock1) associated with slot s1. socket_event_handle_pollerr is yet to be invoked. * an event_select_on called from __socket_ioq_churn which was called in request/reply/msg submission codepath (as opposed to __socket_ioq_churn called as part of POLLOUT handling - we cannot receive a POLLOUT due to EPOLLONESHOT) adds back sock1 for polling. * since sock1 was added back for polling in step 2 and our polling is level-triggered, another thread picks up another POLLERR event - say POLLERR2. socket_event_handler is invoked as part of processing POLLERR2 and it completes execution setting priv->sock to -1. * event_unregister_epoll called as part of __socket_reset due to POLLERR1 would receive fd as -1 resulting in assert failure. Also, since the first pollerr event has done rpc_transport_unref, subsequent parallel events (not just pollerr, but other events too) could be acting on a freed up transport too. Change-Id: I5db755068e7890ec755b59f7a35a57da110339eb BUG: 1486134 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: https://review.gluster.org/18129 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: mohammed rafi kc <rkavunga@redhat.com>
* mempool: fix code when GF_DISABLE_MEMPOOL is definedNiels de Vos2017-09-021-3/+5
| | | | | | | | | | | | | | | | | | | | Problem: Run-time crash is observed when attempting to memset() a zero length buffer. Solution: When GF_DISABLE_MEMPOOL is set, mem_get() gets translated to a GF_MALLOC(). The size of the allocation does not need to relate to the available (but uninitialized) global memory pools. It is fine to allocate the exact amount of memory that was configured when the mem-pool was created. Change-Id: Iea0bff974bb771623a34d7a940e10cb0db0f90e1 BUG: 1481199 Reported-by: Milind Changire <mchangir@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: https://review.gluster.org/18034 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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