diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-11-14 17:02:07 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-15 12:13:19 -0700 |
| commit | 57d74df90783f6a6b3e79dfdd2a567ce5db3b790 (patch) | |
| tree | 8ad00d0426916e945f3c7dec608d786972596260 /include/linux/blkdev.h | |
| parent | 39795d6534c6e698c4f9c065e0a5f4a2e5af7543 (diff) | |
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 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 60507ab7b358..30d8e0fbd104 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -621,7 +621,6 @@ struct request_queue { void blk_queue_flag_set(unsigned int flag, struct request_queue *q); void blk_queue_flag_clear(unsigned int flag, struct request_queue *q); bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q); -bool blk_queue_flag_test_and_clear(unsigned int flag, struct request_queue *q); #define blk_queue_stopped(q) test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags) #define blk_queue_dying(q) test_bit(QUEUE_FLAG_DYING, &(q)->queue_flags) |