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Anonymous file descriptors need to be handled specially because
they can be used in some non standard ways (i.e. an anonymous fd
can be used without having been opened).
This caused NFS to fail on some operations because ec always
expected to have a previous successful opendir call (from patch
http://review.gluster.org/9098/).
This patch treats all anonymous fd as opened on all subvolumes.
Change-Id: I09dbbce2ffc1ae3a5bcbb328bed55b84f4f0b9f8
BUG: 1187474
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/9513
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This patch solves some problems that caused dispersed volumes to not
pass posix smoke tests:
* Problems in open/create with O_WRONLY
Opening files with -w- permissions using O_WRONLY returned an EACCES
error because internally O_WRONLY was replaced with O_RDWR.
* Problems with entrylk on renames.
When source and destination were the same, ec tried to acquire
the same entrylk twice, causing a deadlock.
* Overwrite of a variable when reordering locks.
On a rename, if the second lock needed to be placed at the beggining
of the list, the 'lock' variable was overwritten and later its timer
was cancelled, cancelling the incorrect one.
* Handle O_TRUNC in open.
When O_TRUNC was received in an open call, it was blindly propagated
to child subvolumes. This caused a discrepancy between real file
size and the size stored into trusted.ec.size xattr. This has been
solved by removing O_TRUNC from open and later calling ftruncate.
Change-Id: I20c3d6e1c11be314be86879be54b728e01013798
BUG: 1161886
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/9420
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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When command 'clear-locks' from cli is executed, a getxattr request
is received by ec. This request was handled as usual, first locking
the inode. Once this request was processed by the bricks, all locks
were removed, including the lock used by ec.
When ec tried to unlock the previously acquired lock (which was
already released), caused a crash in glusterfsd.
This fix executes the getxattr request without any lock acquired
for the clear-locks command.
Change-Id: I77e550d13c4673d2468a1e13fe6e2fed20e233c6
BUG: 1179050
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/9440
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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