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blk-rq-qos: constify rq_qos_ops

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These op vectors are constant, so mark them const.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andreas Herrmann <aherrmann@suse.de>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230203150400.3199230-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2023-02-03 16:03:55 +01:00 committed by Jens Axboe
parent ce57b55860
commit 3963d84df7
5 changed files with 6 additions and 6 deletions
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2
block/blk-iocost.c
View file

@ -2832,7 +2832,7 @@ static void ioc_rqos_exit(struct rq_qos *rqos)
kfree(ioc);
}
static struct rq_qos_ops ioc_rqos_ops = {
static const struct rq_qos_ops ioc_rqos_ops = {
.throttle = ioc_rqos_throttle,
.merge = ioc_rqos_merge,
.done_bio = ioc_rqos_done_bio,

2
block/blk-iolatency.c
View file

@ -650,7 +650,7 @@ static void blkcg_iolatency_exit(struct rq_qos *rqos)
kfree(blkiolat);
}
static struct rq_qos_ops blkcg_iolatency_ops = {
static const struct rq_qos_ops blkcg_iolatency_ops = {
.throttle = blkcg_iolatency_throttle,
.done_bio = blkcg_iolatency_done_bio,
.exit = blkcg_iolatency_exit,

2
block/blk-rq-qos.c
View file

@ -296,7 +296,7 @@ void rq_qos_exit(struct request_queue *q)
}
int rq_qos_add(struct rq_qos *rqos, struct gendisk *disk, enum rq_qos_id id,
struct rq_qos_ops *ops)
const struct rq_qos_ops *ops)
{
struct request_queue *q = disk->queue;

4
block/blk-rq-qos.h
View file

@ -25,7 +25,7 @@ struct rq_wait {
};
struct rq_qos {
struct rq_qos_ops *ops;
const struct rq_qos_ops *ops;
struct request_queue *q;
enum rq_qos_id id;
struct rq_qos *next;
@ -86,7 +86,7 @@ static inline void rq_wait_init(struct rq_wait *rq_wait)
}
int rq_qos_add(struct rq_qos *rqos, struct gendisk *disk, enum rq_qos_id id,
struct rq_qos_ops *ops);
const struct rq_qos_ops *ops);
void rq_qos_del(struct rq_qos *rqos);
typedef bool (acquire_inflight_cb_t)(struct rq_wait *rqw, void *private_data);

2
block/blk-wbt.c
View file

@ -898,7 +898,7 @@ static const struct blk_mq_debugfs_attr wbt_debugfs_attrs[] = {
};
#endif
static struct rq_qos_ops wbt_rqos_ops = {
static const struct rq_qos_ops wbt_rqos_ops = {
.throttle = wbt_wait,
.issue = wbt_issue,
.track = wbt_track,