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* making dht and nufa's 'min-free-disk' option to take both percent and disk-sizeAmar Tumballi2009-06-184-38/+90
| | | | | | | | | | | Originally from Paul Rawson <plrca2@gmail.com> http://patches.gluster.com/patch/391/ : patch re-submitted with patching guidelines. cluster/distribute, and cluster/nufa uses new option PERCENT_OR_SIZET for its option 'min-free-disk'. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* adding an extra xlator option type, GF_OPTION_PERCENT_OR_SIZET.Amar Tumballi2009-06-182-3/+96
| | | | | | | | | | | Originally from Paul Rawson <plrca2@gmail.com> http://patches.gluster.com/patch/391/ : patch re-submitted with patching guidelines. with this patch, the xlator volume options get another type which can take arguments either in 'percent' or in 'bytes', which is useful in many cases. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfs: Prevent gf_fd_put'ing of unallocated fdShehjar Tikoo2009-06-181-1/+11
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfs: Chain newly allocated fdentries.Shehjar Tikoo2009-06-181-0/+1
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfs: Change GF_FDENTRY_ALLOCATED constantShehjar Tikoo2009-06-181-3/+2
| | | | | | | | | This change is being brought in so that we can differentiate between fdentry_ts when debugging using gdb. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* change the log level of disk full message in dht-diskusageAmar Tumballi2009-06-181-3/+3
| | | | | | | | the current msg is getting printed in warning level. Instead changed it to debug, as the msg specific each node being full is already getting printed in higher priority, hence this msg looks excessive. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Booster build should not depend on if mod_glusterfs is disabledHarshavardhana Ranganath2009-06-171-1/+1
| | | | | | | | Thanks to Erick Tryzelaar Sending this patch on behalf of Erick Tryzelaar <idadesub@users.sourceforge.net> Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Removed the swap being done for __noswap functions.Vijay Bellur2009-06-171-3/+3
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* change ha-statfs() to handle the case of loc->inode being NULLAmar Tumballi2009-06-172-27/+44
| | | | | | | | | | This fix is needed in ha_statfs(), as the current code doesn't handle the case of loc->inode being NULL, which is a valid case in statfs() [Remember its stateless call]. This was causing 100% disk full logs in distribute or nufa as the logic of checking whether the subvolumes have enough disk space on them used to fail. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* client: Replace saved_fds dict with listShehjar Tikoo2009-06-152-158/+177
| | | | | | | | | | | Thhie change removes a huge inefficiency in file open path where every open resulted in dictionary operations in order to let the client maintain a list of fd_t's being used over a particular client context. Resolves: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=16 Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfs: Turn fd-table O(1)Shehjar Tikoo2009-06-153-82/+141
| | | | | | | | | This commit reduces CPU usage of gf_fd_unused_get drastically by making it O(1) instead of O(n). Related to: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=16 Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* write-behind: fix memory corruptionRaghavendra G2009-06-151-0/+1
| | | | | | | | - wb_sync did not set local = NULL after stack_wind. It also used to free local if its not NULL as part of cleanup process. Hence there was a double free in STACK_DESTROY done in wb_sync_cbk. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* write-behind: check for memory allocation failures and take appropriate actionRaghavendra G2009-06-152-78/+438
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Do stat to check mode of the export directory in storage/posix.Vikas Gorur2009-06-151-1/+1
| | | | | | | Doing an lstat means init fails if the export directory is a symlink pointing to a directory. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: fix build error in fcntl implementation.Raghavendra G2009-06-151-1/+7
| | | | | | - F_DUPFD_CLOEXEC is defined only in linux kernel versions >= 2.6.24 Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* io-cache: fix warning by initializing conf = NULLAnand V. Avati2009-06-151-1/+1
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* read-ahead: fix warning by initializing conf = NULLAnand V. Avati2009-06-151-1/+1
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* libglusterfsclient: Call inode_lookup to prevent pruningShehjar Tikoo2009-06-121-5/+7
| | | | | | | | | | | | | This bug shows up while using unfs3 with replicate. The absence of an inode_lookup on a looked-up/created inode results in it getting pruned from the inode table. Consequently, a subsequent lookup for the inode results in a different inode number being returned by replicate. This breaks unfs3 because it tries to remember the inode numbers returned by two different stat-family calls. Resolves: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=11 Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* strict check of extended attribute flags while opening a striped fileAmar Tumballi2009-06-112-68/+223
| | | | | | | | | | Added a fd_ctx structure for stripe, which takes care of understanding the extended attribute flags, and opening the right blocks in order (to make sure the read/write operations happen in order). Helps to handle situations like accidentally adding subvolumes to stripe, etc Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* stripe: don't allow entry modification operations when any node is downAmar Tumballi2009-06-111-5/+13
| | | | | | | | if entry modification operations (like create/mknod/rename) happen when there is a node down, there will be inconsistency in striped fs. rather than curing it, prevent the issue from happening Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* stripe cleanupAmar Tumballi2009-06-113-2621/+2759
| | | | | | | | | | | | | stripe.c: indentation cleanup log messages cleanup coding standard guidelines removed ERR_ABORTs stripe.h moved the structure definitions here Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* io-cache: handle memory allocation failuresRaghavendra G2009-06-114-65/+373
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Initialize central logging in glusterfs main().Vikas Gorur2009-06-111-0/+10
| | | | | | Modified from patch 522 (made a function extern) -- Avati Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Implemented LOG MOP in server-protocol.Vikas Gorur2009-06-111-0/+28
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Log to a central server.Vikas Gorur2009-06-112-8/+397
| | | | | | | | | | | | | Several functions to support centralized logging: - create a logging thread upon init - gf_log submits log messages to the logging thread which in turn sends it to the server using the MOP log - on the server side, log messages from a client are written to the filename <log file name>.client-<transport-identifier> Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Functions to store a central log flag in TLS.Vikas Gorur2009-06-112-0/+64
| | | | | | | 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>
* Include glusterfs.h in dict.cVikas Gorur2009-06-111-0/+1
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Implemented LOG MOP in client-protocol.Vikas Gorur2009-06-111-0/+61
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Added MOP log to libglusterfs/*Vikas Gorur2009-06-117-0/+52
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Do not fail over readdir in replicate.Vikas Gorur2009-06-111-27/+4
| | | | | | | | | If readdir fails on a subvolume, do not fail-over to the next subvolume, since the order of entries and offsets won't be same on all subvolumes. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Do itransform on every entry in readdir_cbk.Vikas Gorur2009-06-111-4/+9
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: fix memory corruption in booster_cleanupRaghavendra G2009-06-111-4/+10
| | | | | | | - calling glusterfs_umount_all leads to memory corruption. hence commenting out for timebeing. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: reset the vmplist and vmpentries to 0 in glusterfs_resetRaghavendra G2009-06-111-0/+6
| | | | | | | - Generally glusterfs_reset is called after fork in child to empty out vmplist. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: implement fcntl.Raghavendra G2009-06-111-1/+104
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: implement glusterfs_fcntl.Raghavendra G2009-06-112-0/+117
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: implement readdir_r and readdir64_r.Raghavendra G2009-06-112-0/+70
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: implement glusterfs_readdir_rRaghavendra G2009-06-112-0/+72
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: update offset in glusterfs_read_async_cbk only if offset ↵Raghavendra G2009-06-112-4/+10
| | | | | | | | | | stored in fd_ctx is used. - this helps in implementing sendfile(2). manpage says that "If offset is not NULL, then sendfile() does not modify the current file offset of in_fd" Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: call glusterfs_umount_all during cleanupRaghavendra G2009-06-111-0/+4
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: implement sendfile.Raghavendra G2009-06-111-0/+58
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: implement glusterfs_sendfile.Raghavendra G2009-06-112-0/+171
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: add glusterfs_umount_all.Raghavendra G2009-06-112-0/+23
| | | | | | | - unmounts all the entries in the vmplist. - this api helps booster to cleanup all the mounts in a single call. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: make glusterfs_umount thread safeRaghavendra G2009-06-111-18/+42
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* libglusterfsclient: make glusterfs_mount thread safe.Raghavendra G2009-06-111-51/+80
| | | | | | | - this patch also checks for the presence of vmp before adding an vmpentry. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* booster: remove mount table which maps a path to glusterfs handler.Raghavendra G2009-06-111-236/+86
| | | | | | | | | | - if there are any glusterfs mounts(real, not virtual) which are not specified through booster-fstab those mounts are also added to the virtual mountpoint list of libglusterfsclient. This also removes the mount table in booster and all the mounts whether they are real or virtual are handled by libglusterfsclient. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Filter out changelog xattrs in replicate.Vikas Gorur2009-06-111-1/+64
| | | | | | | | The AFR changelog xattrs, "trusted.afr.*" are now filtered and prevented from being visible on the mountpoint. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* io-threads: Fix missed notification in sem_timedwaitShehjar Tikoo2009-06-112-5/+4
| | | | | | | | | | | | | | | We're performing a calculation for skewing idle time that resulted in a timespec.tv_nsec value becoming larger than 1000 million or less than 0, forcing sem_timedwait to return with an EINVAL instead of waiting for a request notification from sem_post in iot_notify_worker(). This resulted in a missed notification that resulted in a hang followed by a timeout on the protocol/client side. This commit avoids the over- and under-flow in tv_nsec by skewing the tv_sec value instead. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* read-ahead: handle memory allocation failuresRaghavendra G2009-06-113-17/+111
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* read-ahead: return with error code EBADF for fops on fds without file set in ↵Raghavendra G2009-06-111-11/+45
| | | | | | | | | | | their context. - since a successful open/create will _always_ set a pointer to ra_file_t in context of fd, this fix makes sense. - an example of operations on bad fd can be afr sending read on the child which was down during open. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* read-ahead: unwind with a return value of -1 and error code of ENOMEM on ↵Raghavendra G2009-06-111-0/+4
| | | | | | memory allocation for ra_file in open/create Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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