[PATCH 13/20] staging/lustre/ptlrpc: hold rq_lock when modify rq_flags

green
2015-02-02T02:56:28Z

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

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

Signed-off-by: Niu Yawei <yawei.niu@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.yong@intel.com>
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@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