Commit a8ecdd71 authored May 25, 2017 by Bart Van Assche Committed by Jens Axboe May 26, 2017

blk-mq: Only register debugfs attributes for blk-mq queues

The code in blk-mq-debugfs.c assumes that it is working on a blk-mq
queue and is not intended to work on a blk-sq queue. Hence only
register blk-mq debugfs attributes for blk-mq queues.

Fixes: commit 9c1051aa ("blk-mq: untangle debugfs and sysfs")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent 22322035

block/blk-sysfs.c

+3 −3

Original line number	Original line	Diff line number	Diff line
	@@ -887,10 +887,10 @@ int blk_register_queue(struct gendisk *disk)
	goto unlock;		goto unlock;
	}		}

	if (q->mq_ops)		if (q->mq_ops) {
	__blk_mq_register_dev(dev, q);		__blk_mq_register_dev(dev, q);

	blk_mq_debugfs_register(q);		blk_mq_debugfs_register(q);
			}

	kobject_uevent(&q->kobj, KOBJ_ADD);		kobject_uevent(&q->kobj, KOBJ_ADD);