blk-throttle: pass a gendisk to blk_throtl_cancel_bios

Pass the gendisk to blk_throtl_cancel_bios 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/20220921180501.1539876-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-throttle.c

@@ -1716,8 +1716,9 @@ struct blkcg_policy blkcg_policy_throtl = {
 	.pd_free_fn		= throtl_pd_free,
 };
 
-void blk_throtl_cancel_bios(struct request_queue *q)
+void blk_throtl_cancel_bios(struct gendisk *disk)
 {
+	struct request_queue *q = disk->queue;
 	struct cgroup_subsys_state *pos_css;
 	struct blkcg_gq *blkg;
 

block/blk-throttle.h

@@ -172,13 +172,13 @@ 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(struct gendisk *disk) { }
 static inline bool blk_throtl_bio(struct bio *bio) { return false; }
-static inline void blk_throtl_cancel_bios(struct request_queue *q) { }
+static inline void blk_throtl_cancel_bios(struct gendisk *disk) { }
 #else /* CONFIG_BLK_DEV_THROTTLING */
 int blk_throtl_init(struct gendisk *disk);
 void blk_throtl_exit(struct gendisk *disk);
 void blk_throtl_register(struct gendisk *disk);
 bool __blk_throtl_bio(struct bio *bio);
-void blk_throtl_cancel_bios(struct request_queue *q);
+void blk_throtl_cancel_bios(struct gendisk *disk);
 
 static inline bool blk_should_throtl(struct bio *bio)
 {

block/genhd.c

@@ -626,7 +626,7 @@ void del_gendisk(struct gendisk *disk)
 	pm_runtime_set_memalloc_noio(disk_to_dev(disk), false);
 	device_del(disk_to_dev(disk));
 
-	blk_throtl_cancel_bios(disk->queue);
+	blk_throtl_cancel_bios(disk);
 
 	blk_sync_queue(q);
 	blk_flush_integrity();