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authorChristoph Hellwig <hch@lst.de>2020-06-27 10:31:51 +0300
committerJens Axboe <axboe@kernel.dk>2020-06-29 18:09:08 +0300
commit28fc591ff9d64cbc2b780be95ee3fde8f6ade7fd (patch)
tree58b5e9d1ed064a30064b01a77fa1d0b043040d37 /include/linux/blk-cgroup.h
parenta18b9b1590ca64f877588700de32c9ad236f405c (diff)
downloadlinux-28fc591ff9d64cbc2b780be95ee3fde8f6ade7fd.tar.xz
block: move the bio cgroup associatation helpers to blk-cgroup.c
Keep the cgroup code together. Acked-by: Tejun Heo <tj@kernel.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blk-cgroup.h')
-rw-r--r--include/linux/blk-cgroup.h30
1 files changed, 0 insertions, 30 deletions
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index a57ebe2f00ab..60df97202314 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -183,10 +183,6 @@ extern bool blkcg_debug_stats;
struct blkcg_gq *blkg_lookup_slowpath(struct blkcg *blkcg,
struct request_queue *q, bool update_hint);
-struct blkcg_gq *__blkg_lookup_create(struct blkcg *blkcg,
- struct request_queue *q);
-struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg,
- struct request_queue *q);
int blkcg_init_queue(struct request_queue *q);
void blkcg_exit_queue(struct request_queue *q);
@@ -481,32 +477,6 @@ static inline bool blkg_tryget(struct blkcg_gq *blkg)
}
/**
- * blkg_tryget_closest - try and get a blkg ref on the closet blkg
- * @blkg: blkg to get
- *
- * This needs to be called rcu protected. As the failure mode here is to walk
- * up the blkg tree, this ensure that the blkg->parent pointers are always
- * valid. This returns the blkg that it ended up taking a reference on or %NULL
- * if no reference was taken.
- */
-static inline struct blkcg_gq *blkg_tryget_closest(struct blkcg_gq *blkg)
-{
- struct blkcg_gq *ret_blkg = NULL;
-
- WARN_ON_ONCE(!rcu_read_lock_held());
-
- while (blkg) {
- if (blkg_tryget(blkg)) {
- ret_blkg = blkg;
- break;
- }
- blkg = blkg->parent;
- }
-
- return ret_blkg;
-}
-
-/**
* blkg_put - put a blkg reference
* @blkg: blkg to put
*/