| Message ID | 20190930230047.44113-6-bvanassche@acm.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Block layer patches for kernel v5.5 | expand |
diff --git a/block/blk-core.c b/block/blk-core.c index 8b51d9ec8ae3..ae506ac2dd48 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -339,13 +339,11 @@ void blk_cleanup_queue(struct request_queue *q) WARN_ON_ONCE(blk_queue_registered(q)); /* mark @q DYING, no new request or merges will be allowed afterwards */ - mutex_lock(&q->sysfs_lock); blk_set_queue_dying(q); blk_queue_flag_set(QUEUE_FLAG_NOMERGES, q); blk_queue_flag_set(QUEUE_FLAG_NOXMERGES, q); blk_queue_flag_set(QUEUE_FLAG_DYING, q); - mutex_unlock(&q->sysfs_lock); /* * Drain all requests queued before DYING marking. Set DEAD flag to
Since blk_cleanup_queue() is called after blk_unregister_queue() and since that last function removes all sysfs attributes, serializing any code in blk_cleanup_queue() against sysfs callback methods nor against I/O scheduler changes is necessary. Hence remove the syfs_lock locking calls from the start of blk_cleanup_queue(). Cc: Christoph Hellwig <hch@infradead.org> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> --- block/blk-core.c | 2 -- 1 file changed, 2 deletions(-)