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scsi: provide mq_ops->busy() hook 

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>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2018-10-29 10:17:28 -06:00
parent 9ba20527f4
commit 3a7ea2c483
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/scsi_lib.c
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@ -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,
};