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-rw-r--r--block/blk-cgroup.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 8e5863e900b..b6802c46d68 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -209,9 +209,7 @@ static inline struct blkcg *bio_blkcg(struct bio *bio)
*/
static inline struct blkcg *blkcg_parent(struct blkcg *blkcg)
{
- struct cgroup *pcg = blkcg->css.cgroup->parent;
-
- return pcg ? cgroup_to_blkcg(pcg) : NULL;
+ return css_to_blkcg(css_parent(&blkcg->css));
}
/**