[PATCH 08/30] scsi: provide mq_ops->busy() hook

Jens Axboe
2018-10-31T17:59:00Z

Only the SCSI legacy path provides a way to check if target is
currently busy, provide the same for the MQ path.

Cc: linux-scsi@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
drivers/scsi/scsi_lib.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index c7fccbb8f554..8b0345924a92 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1675,6 +1675,11 @@ static int scsi_lld_busy(struct request_queue *q)
return 0;
}

+static bool scsi_mq_lld_busy(struct request_queue *q)
+{
+ return scsi_lld_busy(q);
+}
+
/*
* Kill a request for a dead device
*/
@@ -2326,6 +2331,7 @@ static const struct blk_mq_ops scsi_mq_ops = {
.init_request = scsi_mq_init_request,
.exit_request = scsi_mq_exit_request,
.initialize_rq_fn = scsi_initialize_rq,
+ .busy = scsi_mq_lld_busy,
.map_queues = scsi_map_queues,
};

--
2.17.1