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staging: lustre: mdc: don't take rpc lock for readdir case 

If the operation is IT_READDIR don't need to handle the
mdc RPC lock.

Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
wang di 2016-08-16 16:18:19 -04:00 committed by Greg Kroah-Hartman
parent 77a782ab70
commit a0d73eb569
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/lustre/lustre/include/lustre_mdc.h
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@ -96,7 +96,7 @@ static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
struct lookup_intent *it)
{
if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
it->it_op == IT_LAYOUT))
it->it_op == IT_LAYOUT || it->it_op == IT_READDIR))
return;
/* This would normally block until the existing request finishes.
@ -136,7 +136,7 @@ static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
struct lookup_intent *it)
{
if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
it->it_op == IT_LAYOUT))
it->it_op == IT_LAYOUT || it->it_op == IT_READDIR))
return;
if (lck->rpcl_it == MDC_FAKE_RPCL_IT) { /* OBD_FAIL_MDC_RPCS_SEM */