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* core: moved back the pthread_key_t specific variables as globalAmar Tumballi2012-08-061-21/+27
| | | | | | | | | | | | | in a patch to move all the global variables inside 'ctx', moved all the pthread_key_t specific globals, which needed to be global, not inside some structures. Change-Id: I5e7107a8a64f5b80e90fd469fb084f62b2312705 Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 764890 Reviewed-on: http://review.gluster.com/3783 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: reduce the usage of global variablesAmar Tumballi2012-08-031-125/+73
| | | | | | | | | | | | | | | | | | | | | | | * move all the 'logging' related global variables into ctx * make gf_fop_list a 'const' global array, hence no init(), no edits. * make sure ctx is allocated without any dependancy on memory-accounting infrastructure, so it can be the first one to get allocated * globals_init() should happen with ctx as argument not yet fixed below in this patchset: * anything with 'THIS' related globals * anything related to compat_errno related globals as its one time init'd and not changed later on. * statedump related globals Change-Id: Iab8fc30d4bfdbded6741d66ff1ed670fdc7b7ad2 Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 764890 Reviewed-on: http://review.gluster.com/3767 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfs_ctx_t: un-globalize the filesystem contextAnand Avati2012-07-171-45/+0
| | | | | | | | | | | | | | | | | | | | | | | | So far there has been a global glusterfs_ctx_t object which represents the running instance of the filesystem (client or server). It contains the various graphs, connection to the management daemon over which new graphs are obtained, calls stacks issued on this filesystem, and a bunch of such things. With the introduction of libgfapi, it is no more true that there will be only one filesystem context in a process. Applications can be written to use libgfapi and obtain serveral instances of different filesystems/volumes in the same process. This involves messy untangling of assumptions inside libglusterfs that there would only be one global glusterfs_ctx_t and offload that assumption to glusterfsd/ and cli/ (where it is true). Change-Id: Ifd7d1259428c26076140a5764a2dc7361694139c BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.com/3678 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* remove useless if-before-free (and free-like) functionsJim Meyering2012-07-131-6/+3
| | | | | | | | | | | | See comments in http://bugzilla.redhat.com/839925 for the code to perform this change. Signed-off-by: Jim Meyering <meyering@redhat.com> BUG: 839925 Change-Id: I10e4ecff16c3749fe17c2831c516737e08a3205a Reviewed-on: http://review.gluster.com/3661 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* license: dual license under GPLV2 and LGPLV3+Kaleb KEITHLEY2012-05-101-14/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note that the license was not changed in any of the following: .../argp-standalone/... .../booster/... .../cli/... .../contrib/... .../extras/... .../glusterfsd/... .../glusterfs-hadoop/... .../mod_clusterfs/... .../scheduler/... .../swift/... The license was not changed in any of the non-building xlators. The license was not changed in any of the xlators that seemed — to me — to be clearly server-side only, e.g. protocol/server Note too that copyright was changed along with the license; I did not change the copyright in files where the license did not change. If you find any errors or ommissions please don't hesitate to let me know. The complete list of files with the license change is: libglusterfs/src/byte-order.h libglusterfs/src/call-stub.c libglusterfs/src/call-stub.h libglusterfs/src/checksum.c libglusterfs/src/checksum.h libglusterfs/src/circ-buff.c libglusterfs/src/circ-buff.h libglusterfs/src/common-utils.c libglusterfs/src/common-utils.h libglusterfs/src/compat-errno.c libglusterfs/src/compat-errno.h libglusterfs/src/compat.c libglusterfs/src/compat.h libglusterfs/src/daemon.c libglusterfs/src/daemon.h libglusterfs/src/defaults.c libglusterfs/src/defaults.h libglusterfs/src/dict.c libglusterfs/src/dict.h libglusterfs/src/event-history.c libglusterfs/src/event-history.h libglusterfs/src/event.c libglusterfs/src/event.h libglusterfs/src/fd-lk.c libglusterfs/src/fd-lk.h libglusterfs/src/fd.c libglusterfs/src/fd.h libglusterfs/src/gf-dirent.c libglusterfs/src/gf-dirent.h libglusterfs/src/globals.c libglusterfs/src/globals.h libglusterfs/src/glusterfs.h libglusterfs/src/graph-print.c libglusterfs/src/graph-utils.h libglusterfs/src/graph.c libglusterfs/src/hashfn.c libglusterfs/src/hashfn.h libglusterfs/src/iatt.h libglusterfs/src/inode.c libglusterfs/src/inode.h libglusterfs/src/iobuf.c libglusterfs/src/iobuf.h libglusterfs/src/latency.c libglusterfs/src/latency.h libglusterfs/src/list.h libglusterfs/src/lkowner.h libglusterfs/src/locking.h libglusterfs/src/logging.c libglusterfs/src/logging.h libglusterfs/src/mem-pool.c libglusterfs/src/mem-pool.h libglusterfs/src/mem-types.h libglusterfs/src/options.c libglusterfs/src/options.h libglusterfs/src/rbthash.c libglusterfs/src/rbthash.h libglusterfs/src/run.c libglusterfs/src/run.h libglusterfs/src/scheduler.c libglusterfs/src/scheduler.h libglusterfs/src/stack.c libglusterfs/src/stack.h libglusterfs/src/statedump.c libglusterfs/src/statedump.h libglusterfs/src/syncop.c libglusterfs/src/syncop.h libglusterfs/src/syscall.c libglusterfs/src/syscall.h libglusterfs/src/timer.c libglusterfs/src/timer.h libglusterfs/src/trie.c libglusterfs/src/trie.h libglusterfs/src/xlator.c libglusterfs/src/xlator.h libglusterfsclient/src/libglusterfsclient-dentry.c libglusterfsclient/src/libglusterfsclient-internals.h libglusterfsclient/src/libglusterfsclient.c libglusterfsclient/src/libglusterfsclient.h rpc/rpc-lib/src/auth-glusterfs.c rpc/rpc-lib/src/auth-null.c rpc/rpc-lib/src/auth-unix.c rpc/rpc-lib/src/protocol-common.h rpc/rpc-lib/src/rpc-clnt.c rpc/rpc-lib/src/rpc-clnt.h rpc/rpc-lib/src/rpc-transport.c rpc/rpc-lib/src/rpc-transport.h rpc/rpc-lib/src/rpcsvc-auth.c rpc/rpc-lib/src/rpcsvc-common.h rpc/rpc-lib/src/rpcsvc.c rpc/rpc-lib/src/rpcsvc.h rpc/rpc-lib/src/xdr-common.h rpc/rpc-lib/src/xdr-rpc.c rpc/rpc-lib/src/xdr-rpc.h rpc/rpc-lib/src/xdr-rpcclnt.c rpc/rpc-lib/src/xdr-rpcclnt.h rpc/rpc-transport/rdma/src/name.c rpc/rpc-transport/rdma/src/name.h rpc/rpc-transport/rdma/src/rdma.c rpc/rpc-transport/rdma/src/rdma.h rpc/rpc-transport/socket/src/name.c rpc/rpc-transport/socket/src/name.h rpc/rpc-transport/socket/src/socket.c rpc/rpc-transport/socket/src/socket.h xlators/cluster/afr/src/afr-common.c xlators/cluster/afr/src/afr-dir-read.c xlators/cluster/afr/src/afr-dir-read.h xlators/cluster/afr/src/afr-dir-write.c xlators/cluster/afr/src/afr-dir-write.h xlators/cluster/afr/src/afr-inode-read.c xlators/cluster/afr/src/afr-inode-read.h xlators/cluster/afr/src/afr-inode-write.c xlators/cluster/afr/src/afr-inode-write.h xlators/cluster/afr/src/afr-lk-common.c xlators/cluster/afr/src/afr-mem-types.h xlators/cluster/afr/src/afr-open.c xlators/cluster/afr/src/afr-self-heal-algorithm.c xlators/cluster/afr/src/afr-self-heal-algorithm.h xlators/cluster/afr/src/afr-self-heal-common.c xlators/cluster/afr/src/afr-self-heal-common.h xlators/cluster/afr/src/afr-self-heal-data.c xlators/cluster/afr/src/afr-self-heal-entry.c xlators/cluster/afr/src/afr-self-heal-metadata.c xlators/cluster/afr/src/afr-self-heal.h xlators/cluster/afr/src/afr-self-heald.c xlators/cluster/afr/src/afr-self-heald.h xlators/cluster/afr/src/afr-transaction.c xlators/cluster/afr/src/afr-transaction.h xlators/cluster/afr/src/afr.c xlators/cluster/afr/src/afr.h xlators/cluster/afr/src/pump.c xlators/cluster/afr/src/pump.h xlators/cluster/dht/src/dht-common.c xlators/cluster/dht/src/dht-common.h xlators/cluster/dht/src/dht-diskusage.c xlators/cluster/dht/src/dht-hashfn.c xlators/cluster/dht/src/dht-helper.c xlators/cluster/dht/src/dht-inode-read.c xlators/cluster/dht/src/dht-inode-write.c xlators/cluster/dht/src/dht-layout.c xlators/cluster/dht/src/dht-linkfile.c xlators/cluster/dht/src/dht-mem-types.h xlators/cluster/dht/src/dht-rebalance.c xlators/cluster/dht/src/dht-rename.c xlators/cluster/dht/src/dht-selfheal.c xlators/cluster/dht/src/dht.c xlators/cluster/dht/src/nufa.c xlators/cluster/dht/src/switch.c xlators/cluster/stripe/src/stripe-helpers.c xlators/cluster/stripe/src/stripe-mem-types.h xlators/cluster/stripe/src/stripe.c xlators/cluster/stripe/src/stripe.h xlators/features/index/src/index-mem-types.h ¹ xlators/features/index/src/index.c ¹ xlators/features/index/src/index.h ¹ xlators/performance/io-cache/src/io-cache.c xlators/performance/io-cache/src/io-cache.h xlators/performance/io-cache/src/ioc-inode.c xlators/performance/io-cache/src/ioc-mem-types.h xlators/performance/io-cache/src/page.c xlators/performance/io-threads/src/io-threads.c xlators/performance/io-threads/src/io-threads.h xlators/performance/io-threads/src/iot-mem-types.h xlators/performance/md-cache/src/md-cache-mem-types.h xlators/performance/md-cache/src/md-cache.c xlators/performance/quick-read/src/quick-read-mem-types.h xlators/performance/quick-read/src/quick-read.c xlators/performance/quick-read/src/quick-read.h xlators/performance/read-ahead/src/page.c xlators/performance/read-ahead/src/read-ahead-mem-types.h xlators/performance/read-ahead/src/read-ahead.c xlators/performance/read-ahead/src/read-ahead.h xlators/performance/symlink-cache/src/symlink-cache.c xlators/performance/write-behind/src/write-behind-mem-types.h xlators/performance/write-behind/src/write-behind.c xlators/protocol/auth/addr/src/addr.c ¹ xlators/protocol/auth/login/src/login.c ¹ xlators/protocol/client/src/client-callback.c xlators/protocol/client/src/client-handshake.c xlators/protocol/client/src/client-helpers.c xlators/protocol/client/src/client-lk.c xlators/protocol/client/src/client-mem-types.h xlators/protocol/client/src/client.c xlators/protocol/client/src/client.h xlators/protocol/client/src/client3_1-fops.c ¹ Copyright only, license reverted to original Change-Id: If560e826c61b6b26f8b9af7bed6e4bcbaeba31a8 BUG: 820551 Signed-off-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.com/3304 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Revert "core: enable process to return the appropriate error code"Amar Tumballi2012-03-221-3/+0
| | | | | | | | | This reverts commit 16717f4df7b0fbd3c255f5faf8a2744444231bb7 Change-Id: I65624db4d31e11e1bec66b07b352ce823ef069b9 Reviewed-on: http://review.gluster.com/3001 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* core: enable process to return the appropriate error codeAmar Tumballi2012-03-211-0/+3
| | | | | | | | | | | | | Credit of this patch goes to Avati <avati@gluster.com> as I just did a rebase to the lastest master. Change-Id: I53b2adf90fd9808433bdc35b57dad0682bc90860 BUG: 762935 Signed-off-by: Amar Tumballi <amar@gluster.com> Reviewed-on: http://review.gluster.com/579 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cluster/afr: Add commands to see self-heald opsPranith Kumar K2012-02-201-1/+1
| | | | | | | | | Change-Id: Id92d3276e65a6c0fe61ab328b58b3954ae116c74 BUG: 763820 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/2775 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* protocol/client : prevent client from reconnecting when serverKaushal M2012-02-031-0/+1
| | | | | | | | | | | | | | | | | | authentication fails This prevents the client from trying to reconnect on server authentication failure. Reconnecting on authentcation failure causes hung mounts on unauthorised clients. This patch fixes this problem. Also, mount.glusterfs script unmounts mount-point on mount failure to prevent hung mounts. Change-Id: I5615074d27948077bad491a38cecae1b7f5159fb BUG: 765240 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.com/398 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com>
* core: change lk-owner as a 1k bufferAmar Tumballi2012-01-241-0/+44
| | | | | | | | | | | | | so, NLM can send the lk-owner field directly to the locks translators, while doing the same effort, also enabled sending maximum of 500 aux gid over protocol. Change-Id: I87c2514392748416f7ffe21d5154faad2e413969 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 767229 Reviewed-on: http://review.gluster.com/779 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* libglusterfs: Adding missing event strings for events.Krishnan Parthasarathi2011-09-231-2/+6
| | | | | | | Change-Id: Idf55abfa77712d32b27798fedcfddb65599b562b Reviewed-on: http://review.gluster.com/493 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* glusterd: Implemented cmd to trigger self-heal on a replicate volume.v3.3.0qa10Krishnan Parthasarathi2011-09-221-0/+1
| | | | | | | | | | | | | This cmd is used in the context of proactive self-heal for replicated volumes. User invokes the following cmd when (s)he suspects that self-heal needs to be done on a particular volume, gluster volume heal <VOLNAME>. Change-Id: I3954353b53488c28b70406e261808239b44997f3 BUG: 3602 Reviewed-on: http://review.gluster.com/454 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* statedump: add more memory accounting related statsAmar Tumballi2011-09-221-0/+1
| | | | | | | | | | | | | | | | | * iobuf: add variable to keep count of total number of allocations * iobuf: include 'purged' and 'filled' arenas also in dump * mempool: more details added (with a name to tell why mem-pool is created) * memory-accounting: print number of allocs in each type this would give us much better understanding of the memory allocation pattern Change-Id: I117ac0c1da943a4cc91543a01963ba7940db2b5f BUG: 3567 Reviewed-on: http://review.gluster.com/376 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* xlator options: revamp xlator option validation/reconfigure codeAnand Avati2011-08-181-0/+2
| | | | | | | | | | | | | | | | | - move option handling to options.c (new file) - remove duplication of option validation code - remove duplication of gf_log / sprintf - get rid of xlator_t->validate_options - get rid of option validation in rpc-transport - get rid of validate_options() in every xlator - use xlator_volume_option_get to clean up many functions - introduce primitives to init/reconfigure option types Change-Id: I51798af72c8dc0a2b9e017424036eb3667dfc7ff BUG: 3415 Reviewed-on: http://review.gluster.com/235 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* Change Copyright current yearPranith Kumar K2011-08-101-1/+1
| | | | | | | | Change-Id: I2d10f2be44f518f496427f257988f1858e888084 BUG: 3348 Reviewed-on: http://review.gluster.com/200 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* LICENSE: s/GNU Affero General Public/GNU General Public/Pranith Kumar K2011-08-061-3/+3
| | | | | | | | Change-Id: I3914467611e573cccee0d22df93920cf1b2eb79f BUG: 3348 Reviewed-on: http://review.gluster.com/182 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* libglusterfs/src/*.c: log enhancementAmar Tumballi2011-03-171-1/+6
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 2346 (Log message enhancements in GlusterFS - phase 1) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346
* glusterfsd: log enhancementAmar Tumballi2011-03-171-66/+16
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 2346 (Log message enhancements in GlusterFS - phase 1) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346
* libglusterfs/src/*.c: whitespace cleanupAmar Tumballi2011-03-171-62/+61
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 2346 (Log message enhancements in GlusterFS - phase 1) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346
* libglusterfs: gf_log_nomem() and other minor updatesAmar Tumballi2011-03-171-0/+2
| | | | | | | | | | | | | | log will be done when the memory allocation fails, hence in code, no explicit logs required for memory allocation failures. also, if there are logs before actually doing a log_init(), they will be logged in 'stderr'. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 2346 (Log message enhancements in GlusterFS - phase 1) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346
* Logging : New uuid to string conversion functions.Gaurav2011-02-041-0/+40
| | | | | | | | Signed-off-by: Gaurav <gaurav@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2308 (Threadsafe uuid to string conversion function) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2308
* Copyright changesVijay Bellur2010-10-111-1/+1
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Change GNU GPL to GNU AGPLPranith K2010-10-041-3/+3
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1388 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388
* core: Introduce string representation of GF_EVENTSShehjar Tikoo2010-09-221-0/+23
| | | | | | | | Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1643 (Initial requests after mount ESTALE if DHT subvolumes connect after nfs startup) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1643
* syncop: initial implementationPavan Sondur2010-07-281-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Resending Avati's syncop patch with a few bug fixes. (please do not skip the IMPORTANT NOTES section) * Framework for SYNChronous OPerations -------------------------------------- This patch provides a framework for performing synchronous operations over the underlying actual asynchronous GlusterFS FOPS. * Use cases ----------- 1. Convenient implementation of crawler thread in replicate/pump 2. Convenient implementation of high level control flow in DVM * Background ------------ All (almost) threads in GlusterFS are hosts for executing aysnchronous file operations using the STACK_WIND and STACK_UNWIND primitives - as calls and callbacks. While the STACK_WIND and STACK_UNWIND macros provide high control for efficiently implementing file operations in a clustered/parallel environment, there are tasks where the nature of the task itself is sequential and the execution performance of the task is not critical. In these cases the complexity to implement the task with STACK_WIND/STACK_UNWIND based operations as calls and callbacks is an overkill. * Introduction --------------- syncop: are wrappers around the STACK_WIND/STACK_UNWIND based asynchronous fops. synctask: a sequential task (a C function) which uses syncops. syncenv: an environement to schedule and execute synctasks. The synchronicity is implemented via ucontext.h based continuations. Execution of synchronous tasks is possible only in a synchronous environment. Therefore, the first step is to create such an environment - struct syncenv *env = syncenv_new (0); This creates a synchronous environment, with a thread (scheduler) to host the synchronous tasks. Creation of this environment is generally to be done at the time of process initialization. Next is to spawn a synchronous task in this environment - int slow_self_heal (void *data); int completion_func (int ret, void *data); ret = synctask_new (env, slow_self_heal, completion_func, data); Here slow_self_heal is a task which is implemented using synchronous operations. When slow_self_heal() completes, completion_func() is called with the first parameter as the return value of slow_self_heal(). Both these functions get the @data argument as the same value passed to synctask_new(). int slow_self_heal (void *data) { xlator_t *child = FIRST_CHILD (THIS); fd_t *dir = NULL; ... dir = syncop_opendir (child, loc); entry = syncop_readdir (dir); ... return ret; } * IMPORTANT NOTES ----------------- - calling syncops in code executing outside the synchronous environment will very likely cause and undesired blocking of the executing thread leading to deadlocks!! The synchronous environment is a special thread where such sleeps are safe, and these sleeps result in the scheduler to 'swap in' other synctasks. - syncops can put the task to sleep. DO NOT issue syncops while holding mutexes. This is very similar to the blunder of holding a mutex and doing STACK_WIND. - It works best when synctasks use only syncops. If a call_frame is created and STACK_WIND'ed, the callback would very likely happen in a thread outside the synchronous enviroment, at an undefined time - as expected. So note that the synchronous environment does not tame the notorious behaviour of STACK_WIND. Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* removed 'fop->checksum' from codebase as its not required anymoreAmar Tumballi2010-07-061-1/+0
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 734 (keep only the working/usable code in build tree to focus more on development) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=734
* dynamic volume changes for graph replacementAnand Avati2010-06-071-3/+67
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Memory accounting changesVijay Bellur2010-04-231-0/+4
| | | | | | | | | | | Memory accounting Changes. Thanks to Vinayak Hegde and Csaba Henk for their contributions. Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 329 (Replacing memory allocation functions with mem-type functions) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329
* core: Set ctx in global_xlator to prevent NULL ptr referenceShehjar Tikoo2010-04-221-0/+1
| | | | | | | | | | | | | This results in a crash in STACK_UNWIND after a call bail out. Since the call bail does not occur in the context of an xlator, the old_THIS in STACK_UNWIND is handed a global_xlator which did not have its ctx set, resulting in a NULL de-reference. Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 844 (mixed testing with 35 clients) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=844
* Changed occurrences of Z Research to Gluster.Vijay Bellur2009-10-071-1/+1
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Functions to store a central log flag in TLS.Vikas Gorur2009-06-111-0/+59
| | | | | | | The flag is set in TLS so that a re-entry into gf_central_log does not deadlock. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* globals: add globals.h/c THIS: macro to access thread specific current ↵Anand V. Avati2009-05-221-0/+166
xlator CTX: macro to access glusterfs global context (glusterfs_ctx_t) Signed-off-by: Anand V. Avati <avati@amp.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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