From: Sebastian Riemer <sebastian.riemer@xxxxxxxxxxxxxxxx>
Avoid that path failover in a multipath setup causes the SCSI layer
to generate kernel messages about SCSI command failures. This patch
speeds up SRP initiator operation significantly when monitoring
kernel messages over a serial port.
[bvanassche: Changed patch description]
Signed-off-by: Sebastian Riemer <sebastian.riemer@xxxxxxxxxxxxxxxx>
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Cc: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Cc: David Dillow <dillowda@xxxxxxxx>
Cc: Vu Pham <vu@xxxxxxxxxxxx>
---
drivers/infiniband/ulp/srp/ib_srp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a8cc427..e77176e 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -757,6 +757,7 @@ static void srp_finish_req(struct srp_target_port *target,
if (scmnd) {
srp_free_req(target, req, scmnd, 0);
+ scmnd->request->cmd_flags |= REQ_QUIET;
scmnd->result = result;
scmnd->scsi_done(scmnd);
}
@@ -1438,6 +1439,7 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
result = srp_chkready(target->rport);
if (unlikely(result)) {
+ scmnd->request->cmd_flags |= REQ_QUIET;
scmnd->result = result;
scmnd->scsi_done(scmnd);
return 0;
@@ -1843,6 +1845,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
else
ret = FAILED;
srp_free_req(target, req, scmnd, 0);
+ scmnd->request->cmd_flags |= REQ_QUIET;
scmnd->result = DID_ABORT << 16;
scmnd->scsi_done(scmnd);
--
1.7.10.4
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