linux-next/block/blk-ioprio.h
Yu Kuai 79c6c60a6c blk-ioprio: remove per-disk structure
ioprio works on the blk-cgroup level, all disks in the same cgroup
are the same, and the struct ioprio_blkg doesn't have anything in it.
Hence register the policy is enough, because cpd_alloc/free_fn will
be handled for each blk-cgroup, and there is no need to activate the
policy for disk. Hence remove blk_ioprio_init/exit and
ioprio_alloc/free_pd.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240719071506.158075-4-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-28 16:47:51 -06:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BLK_IOPRIO_H_
#define _BLK_IOPRIO_H_
#include <linux/kconfig.h>
struct request_queue;
struct bio;
#ifdef CONFIG_BLK_CGROUP_IOPRIO
void blkcg_set_ioprio(struct bio *bio);
#else
static inline void blkcg_set_ioprio(struct bio *bio)
{
}
#endif
#endif /* _BLK_IOPRIO_H_ */