| commit | 57d74df90783f6a6b3e79dfdd2a567ce5db3b790 | |
| author | Christoph Hellwig <hch@lst.de> | |
| Wed, 14 Nov 2018 16:02:07 +0000 (14 17:02 +0100) | ||
| committer | Jens Axboe <axboe@kernel.dk> | |
| Thu, 15 Nov 2018 19:13:19 +0000 (15 12:13 -0700) | ||
| tree | 8ad00d0426916e945f3c7dec608d786972596260 | treesnapshot (tar.gz zip) |
| parent | 39795d6534c6e698c4f9c065e0a5f4a2e5af7543 | commitdiff |
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>
->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>