staging: lustre: ldlm: flock completion fixes.

Move checks for FAILED, DESTROYED flags under ldlm spinlock,
destroy flock atomically with the check it is not destroyed yet.
Do not put the granted flock into the resource if this is
UNLOCK, TEST, or DEADLOCK'ed flock.

Later a regression for this patch was reported under LU-7626.
The refcount nonzero (1) after lock cleanup errors was reported.
The reason is that the case LCK_NL was not handled for obdecho.
Patch 17791 resolved this issue which has been combined into
this upstream patch.

Signed-off-by: Vitaly Fertman <[email protected]>
Signed-off-by: Andriy Skulysh <[email protected]>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2177
Reviewed-by: Alexey Lyashkov <[email protected]>
Reviewed-by: Andriy Skulysh <[email protected]>
Reviewed-by: Vitaly Fertman <[email protected]>
Xyratex-bug-id: MRP-1588
Reviewed-on: http://review.whamcloud.com/10005
Reviewed-by: Bobi Jam <[email protected]>
Reviewed-by: Oleg Drokin <[email protected]>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7626
Reviewed-by: Mirza Arshad Mirza Hussain <[email protected]>
Reviewed-by: Alexey Leonidovich Lyashkov <[email protected]>
Reviewed-on: http://review.whamcloud.com/17791
Reviewed-by: Niu Yawei <[email protected]>
Reviewed-by: Alex Zhuravlev <[email protected]>
Reviewed-by: Oleg Drokin <[email protected]>
Signed-off-by: James Simmons <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions