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| author | Jan Kara <jack@suse.cz> | 2022-06-23 09:48:32 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-06-27 14:29:12 +0200 |
| commit | 82b74cac28493fb40ea74fb2fe648b5fc7ea0c1c (patch) | |
| tree | 4965afde9f626a0c326ad99297436b258fd93d5c /block/blk-ioprio.h | |
| parent | blk-ioprio: Remove unneeded field (diff) | |
| download | linux-82b74cac28493fb40ea74fb2fe648b5fc7ea0c1c.tar.xz linux-82b74cac28493fb40ea74fb2fe648b5fc7ea0c1c.zip | |
blk-ioprio: Convert from rqos policy to direct call
Convert blk-ioprio handling from a rqos policy to a direct call from
blk_mq_submit_bio(). Firstly, blk-ioprio is not much of a rqos policy
anyway, it just needs a hook in bio submission path to set the bio's IO
priority. Secondly, the rqos .track hook gets actually called too late
for blk-ioprio purposes and introducing a special rqos hook just for
blk-ioprio looks even weirder.
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220623074840.5960-7-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-ioprio.h')
| -rw-r--r-- | block/blk-ioprio.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/block/blk-ioprio.h b/block/blk-ioprio.h index a7785c2f1aea..5a1eb550e178 100644 --- a/block/blk-ioprio.h +++ b/block/blk-ioprio.h @@ -6,14 +6,23 @@ #include <linux/kconfig.h> struct request_queue; +struct bio; #ifdef CONFIG_BLK_CGROUP_IOPRIO int blk_ioprio_init(struct request_queue *q); +void blk_ioprio_exit(struct request_queue *q); +void blkcg_set_ioprio(struct bio *bio); #else static inline int blk_ioprio_init(struct request_queue *q) { return 0; } +static inline void blk_ioprio_exit(struct request_queue *q) +{ +} +static inline void blkcg_set_ioprio(struct bio *bio) +{ +} #endif #endif /* _BLK_IOPRIO_H_ */ |