When we're hitting a busy condition in queuecommand() we need to
stop the hardware queue before calling blk_mq_delay_queue(); if
we don't blk_mq_delay_queue() will not do anything and requeue
will never triggered.
Signed-off-by: Hannes Reinecke <hare@xxxxxxxx>
---
drivers/scsi/scsi_lib.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index e9e1e14..4b1cbc6 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1951,8 +1951,10 @@ static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
switch (ret) {
case BLK_MQ_RQ_QUEUE_BUSY:
if (atomic_read(&sdev->device_busy) == 0 &&
- !scsi_device_blocked(sdev))
+ !scsi_device_blocked(sdev)) {
+ blk_mq_stop_hw_queue(hctx);
blk_mq_delay_queue(hctx, SCSI_QUEUE_DELAY);
+ }
break;
case BLK_MQ_RQ_QUEUE_ERROR:
/*
--
1.8.5.6
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