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blk-throttle: pass a gendisk to blk_throtl_init and blk_throtl_exit 

[ Upstream commit e13793bae6 ]

Pass the gendisk to blk_throtl_init and blk_throtl_exit as part of moving
the blk-cgroup infrastructure to be gendisk based.

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/20220921180501.1539876-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: 813e693023 ("blk-iolatency: Fix memory leak on add_disk() failures")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christoph Hellwig 2022-09-21 20:04:56 +02:00 committed by Greg Kroah-Hartman
parent 3f3307127c
commit bde5fbafe4
3 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
block/blk-cgroup.c
View File

@ -1277,7 +1277,7 @@ int blkcg_init_disk(struct gendisk *disk)
if (ret)
goto err_destroy_all;
ret = blk_throtl_init(q);
ret = blk_throtl_init(disk);
if (ret)
goto err_ioprio_exit;
@ -1288,7 +1288,7 @@ int blkcg_init_disk(struct gendisk *disk)
return 0;
err_throtl_exit:
blk_throtl_exit(q);
blk_throtl_exit(disk);
err_ioprio_exit:
blk_ioprio_exit(q);
err_destroy_all:
@ -1304,7 +1304,7 @@ err_unlock:
void blkcg_exit_disk(struct gendisk *disk)
{
blkg_destroy_all(disk->queue);
blk_throtl_exit(disk->queue);
blk_throtl_exit(disk);
}
static void blkcg_bind(struct cgroup_subsys_state *root_css)

7
block/blk-throttle.c
View File

@ -2276,8 +2276,9 @@ void blk_throtl_bio_endio(struct bio *bio)
}
#endif
int blk_throtl_init(struct request_queue *q)
int blk_throtl_init(struct gendisk *disk)
{
struct request_queue *q = disk->queue;
struct throtl_data *td;
int ret;
@ -2319,8 +2320,10 @@ int blk_throtl_init(struct request_queue *q)
return ret;
}
void blk_throtl_exit(struct request_queue *q)
void blk_throtl_exit(struct gendisk *disk)
{
struct request_queue *q = disk->queue;
BUG_ON(!q->td);
del_timer_sync(&q->td->service_queue.pending_timer);
throtl_shutdown_wq(q);

8
block/blk-throttle.h
View File

@ -159,14 +159,14 @@ static inline struct throtl_grp *blkg_to_tg(struct blkcg_gq *blkg)
* Internal throttling interface
*/
#ifndef CONFIG_BLK_DEV_THROTTLING
static inline int blk_throtl_init(struct request_queue *q) { return 0; }
static inline void blk_throtl_exit(struct request_queue *q) { }
static inline int blk_throtl_init(struct gendisk *disk) { return 0; }
static inline void blk_throtl_exit(struct gendisk *disk) { }
static inline void blk_throtl_register_queue(struct request_queue *q) { }
static inline bool blk_throtl_bio(struct bio *bio) { return false; }
static inline void blk_throtl_cancel_bios(struct request_queue *q) { }
#else /* CONFIG_BLK_DEV_THROTTLING */
int blk_throtl_init(struct request_queue *q);
void blk_throtl_exit(struct request_queue *q);
int blk_throtl_init(struct gendisk *disk);
void blk_throtl_exit(struct gendisk *disk);
void blk_throtl_register_queue(struct request_queue *q);
bool __blk_throtl_bio(struct bio *bio);
void blk_throtl_cancel_bios(struct request_queue *q);