From: Niu Yawei <yawei....@intel.com>

In after_reply(), take the rq_lock for changing the rq_resend.

Signed-off-by: Niu Yawei <yawei....@intel.com>
Reviewed-on: http://review.whamcloud.com/11957
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5633
Reviewed-by: Fan Yong <fan.y...@intel.com>
Reviewed-by: Johann Lombardi <johann.lomba...@intel.com>
Signed-off-by: Oleg Drokin <oleg.dro...@intel.com>
---
 drivers/staging/lustre/lustre/ptlrpc/client.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c 
b/drivers/staging/lustre/lustre/ptlrpc/client.c
index 8c1ec83..4882dd0 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -1247,7 +1247,9 @@ static int after_reply(struct ptlrpc_request *req)
                time_t  now = get_seconds();
 
                DEBUG_REQ(D_RPCTRACE, req, "Resending request on EINPROGRESS");
+               spin_lock(&req->rq_lock);
                req->rq_resend = 1;
+               spin_unlock(&req->rq_lock);
                req->rq_nr_resend++;
 
                /* allocate new xid to avoid reply reconstruction */
-- 
2.1.0

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