diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-11-14 19:02:07 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-15 22:13:19 +0300 |
| commit | 57d74df90783f6a6b3e79dfdd2a567ce5db3b790 (patch) | |
| tree | 8ad00d0426916e945f3c7dec608d786972596260 /block/blk-mq.c | |
| parent | 39795d6534c6e698c4f9c065e0a5f4a2e5af7543 (diff) | |
| download | linux-57d74df90783f6a6b3e79dfdd2a567ce5db3b790.tar.xz | |
block: use atomic bitops for ->queue_flags
->queue_flags is generally not set or cleared in the fast path, and also
generally set or cleared one flag at a time. Make use of the normal
atomic bitops for it so that we don't need to take the queue_lock,
which is otherwise mostly unused in the core block layer now.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 4c82b4b4fa3e..e2717e843727 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2756,7 +2756,7 @@ struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set, q->queue_flags |= QUEUE_FLAG_MQ_DEFAULT; if (!(set->flags & BLK_MQ_F_SG_MERGE)) - queue_flag_set_unlocked(QUEUE_FLAG_NO_SG_MERGE, q); + blk_queue_flag_set(QUEUE_FLAG_NO_SG_MERGE, q); q->sg_reserved_size = INT_MAX; |