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* nfs: opendir/closedir for every readdirAnand Avati2010-11-151-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert "nfs3: Unref & unbind dir fd with inode lock on EOF" This reverts commit 4e6fb304ce41acbaf7c9ba67c06bf443e65082e8. The above commit (which unbinds fds at EOF) does not fix the original bug (1619) because a readdir from a second app could have already started before the readdir_cbk of the first app's readdir reaches NFS code. Hence the race still exists. Performing extra unrefs when EOF is received is not a reliable way of detecting that a client has performed a closedir (and to close the fd ourselves). Neither is interpreting a 0 cookies a new opendir. Clients can always use telldir/seekdir and hit EOFs twice. Due to the way NFS3 protocol is designed, it is just not possible for the server to reliably detect opendirs/closedirs performed by the client and map the corresponding readdirs to the same dir fd on the server side. The only reliable way of fixing this is to perform opendir/closedir at the cost of performance. Any optimization towards keeping dir fds open attempting to map them with application's opendir/closedir will either result in fd leaks or extra fd unrefs. Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2061 (NFS server crashes in readdir_fstat_cbk due to extra fd unref) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2061
* fuse: retire the faked-FLUSH-upon-RELEASE hackCsaba Henk2010-10-261-1/+0
| | | | | | | | | | | | | | | | | | Now the code has lived up to the glorious state of not relying on getting the FLUSH whenever a file is released. So we don't need to forge one in release for the cases when the kernel doesn't send it. Undo commits: - 155ffe5c - c50bc710 - b8779318 (partly, just release related parts) Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 223 (flush not sent) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=223
* 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
* nfs3: Unref & unbind dir fd with inode lock on EOFShehjar Tikoo2010-09-171-0/+2
| | | | | | | | | | | | | | ..so that when EOF is reached on this fd, any further requests on the same inode do not get handled through this fd but result in a new fd being opened. Unbinding results in the fd getting deleted from the inode's fd list. Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1619 (glusterfs nfs server crashed on dht+replica(2x2)) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1619
* performance/write-behind: dump contents of wb-fileRaghavendra G2010-09-161-0/+5
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1059 (enhancements for getting statistics from performance translators) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1059
* fuse resolve related changesAmar Tumballi2010-08-111-2/+9
| | | | | | | | | | | | | Now fuse is fully complaint with DVM, as even if there is a fop request on inode belonging to old graph, it will be resolved corresponding to new graph and operations will be performed wrt. new graph, which makes DVM truely spontaneous. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1240 (DVM: after graph change, inodes should resolve to new inode-table) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1240
* dynamic volume changes for graph replacementAnand Avati2010-06-071-9/+32
| | | | | | | | 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
* Changed occurrences of Z Research to Gluster.Vijay Bellur2009-10-071-1/+1
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* fuse: emit a flush from release if we didn't get an adjacent FLUSH message ↵Csaba Henk2009-09-231-0/+1
| | | | | | | | | from the kernel Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 223 (flush not sent) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=223
* cleanup 'ctx' from inode and fdAmar Tumballi2009-07-161-1/+0
| | | | | | | | | Removing unused 'dict_t *ctx' from both inode and fd structures. Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 128 (cleanup unwanted ctx dictionary in 'inode' and 'fd' structures.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=128
* booster: Remove gf_fd_unused_get2Shehjar Tikoo2009-06-291-3/+4
| | | | 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>
* libglusterfs: Turn fd-table O(1)Shehjar Tikoo2009-06-151-2/+18
| | | | | | | | | 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>
* Add lock-less versions of fd_ctx_*Vikas Gorur2009-04-071-0/+9
| | | | | | | | Added __fd_ctx_get __fd_ctx_set __fd_ctx_del which do not hold any lock. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* server-protocol - reimplement connection cleanup to happen in 2 phasesRaghavendra G2009-04-031-0/+3
| | | | | | | | | | | - first phase, which happens when POLLERR is received on transport, releases all locks, flushes all open fds. - second phase, which happens when both the transports of connection destroyed, destroys the containers like lock table, fd table along with the connection. - the first phase, clears up any references to transport held by translators like posix-locks(in the form of blocked locks) paving way for the second phase. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* updated copyright header to extend copyright upto 2009Basavanagowda Kanur2009-02-261-1/+1
| | | | | | updated copyright header to include 2009. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* fd->lock added to protect transactions for accessing and modifying fd->_ctx.Basavanagowda Kanur2009-02-261-0/+3
| | | | | | fd->_ctx access and modifications are now protected by fd->lock. Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
* Added all filesVikas Gorur2009-02-181-0/+107
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