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staging/lustre/mdc: Keep resend FLocks 

FLocks requests (particulary F_UNLCKs) can't be trashed
upon comm problems with Server/MDS nor upon kill/exit,
thus we need to keep retry/send.

Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2665
Lustre-change: http://review.whamcloud.com/6415
Signed-off-by: Bruno Faccini <bruno.faccini@intel.com>
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bruno Faccini 2013-07-23 00:07:09 +08:00 committed by Greg Kroah-Hartman
parent 70b749d43d
commit cd6b328cd0
1 changed files with 7 additions and 1 deletions
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8
drivers/staging/lustre/lustre/mdc/mdc_locks.c
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@ -823,7 +823,13 @@ resend:
/* For flock requests we immediatelly return without further
delay and let caller deal with the rest, since rest of
this function metadata processing makes no sense for flock
requests anyway */
requests anyway. But in case of problem during comms with
Server (ETIMEDOUT) or any signal/kill attempt (EINTR), we
can not rely on caller and this mainly for F_UNLCKs
(explicits or automatically generated by Kernel to clean
current FLocks upon exit) that can't be trashed */
if ((rc == -EINTR) || (rc == -ETIMEDOUT))
goto resend;
RETURN(rc);
}