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| author | Christoph Hellwig <hch@lst.de> | 2021-09-20 14:33:23 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 06:17:01 -0600 |
| commit | 2e9bc3465ac54d282b855b073409c2c3a7d1ae00 (patch) | |
| tree | 8fecd1de7699d3f7651adf634ffa60efd821f2ad /include/linux/blkdev.h | |
| parent | 9778ac77c2027827ffdbb33d3e936b3a0ae9f0f9 (diff) | |
| download | lwn-2e9bc3465ac54d282b855b073409c2c3a7d1ae00.tar.gz lwn-2e9bc3465ac54d282b855b073409c2c3a7d1ae00.zip | |
block: move elevator.h to block/
Except for the features passed to blk_queue_required_elevator_features,
elevator.h is only needed internally to the block layer. Move the
ELEVATOR_F_* definitions to blkdev.h, and the move elevator.h to
block/, dropping all the spurious includes outside of that.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-13-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 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 4bcbb1ae2d66..d815238f61ed 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -251,8 +251,6 @@ static inline unsigned short req_get_ioprio(struct request *req) return req->ioprio; } -#include <linux/elevator.h> - struct bio_vec; enum blk_eh_timer_return { @@ -1124,6 +1122,15 @@ extern void blk_queue_dma_alignment(struct request_queue *, int); extern void blk_queue_update_dma_alignment(struct request_queue *, int); extern void blk_queue_rq_timeout(struct request_queue *, unsigned int); extern void blk_queue_write_cache(struct request_queue *q, bool enabled, bool fua); + +/* + * Elevator features for blk_queue_required_elevator_features: + */ +/* Supports zoned block devices sequential write constraint */ +#define ELEVATOR_F_ZBD_SEQ_WRITE (1U << 0) +/* Supports scheduling on multiple hardware queues */ +#define ELEVATOR_F_MQ_AWARE (1U << 1) + extern void blk_queue_required_elevator_features(struct request_queue *q, unsigned int features); extern bool blk_queue_can_use_dma_map_merging(struct request_queue *q, |