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authorXavier Hernandez <xhernandez@datalab.es>2014-11-08 21:46:41 +0100
committerPranith Kumar Karampuri <pkarampu@redhat.com>2015-01-28 19:49:29 -0800
commitb17122ffc75c65bda2cf3b3d99832bbf2718e8d3 (patch)
tree258ad51bcf7d08bccc96cd94b7440a0dce227f33 /contrib
parent88136b53f59e3b81aacc28df18bda575da35b02d (diff)
ec: Fix posix compliance failures
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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