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blk-cgroup: remove blk_queue_root_blkg

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Just open code it in the only caller and drop the unused !BLK_CGROUP
stub.

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/20220921180501.1539876-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2022-09-21 20:04:46 +02:00
committed by Jens Axboe
parent 33dc62796c
commit 928f6f00a9
2 changed files with 1 additions and 15 deletions
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13
block/blk-cgroup.h
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@@ -268,17 +268,6 @@ static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg,
return __blkg_lookup(blkcg, q, false);
}
/**
* blk_queue_root_blkg - return blkg for the (blkcg_root, @q) pair
* @q: request_queue of interest
*
* Lookup blkg for @q at the root level. See also blkg_lookup().
*/
static inline struct blkcg_gq *blk_queue_root_blkg(struct request_queue *q)
{
return q->root_blkg;
}
/**
* blkg_to_pdata - get policy private data
* @blkg: blkg of interest
@@ -507,8 +496,6 @@ struct blkcg {
};
static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; }
static inline struct blkcg_gq *blk_queue_root_blkg(struct request_queue *q)
{ return NULL; }
static inline int blkcg_init_queue(struct request_queue *q) { return 0; }
static inline void blkcg_exit_queue(struct request_queue *q) { }
static inline int blkcg_policy_register(struct blkcg_policy *pol) { return 0; }