diff options
Diffstat (limited to 'block/blk-cgroup.h')
| -rw-r--r-- | block/blk-cgroup.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index fd482439afbc9..b927a4a0ad030 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -252,7 +252,8 @@ static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, if (blkcg == &blkcg_root) return q->root_blkg; - blkg = rcu_dereference(blkcg->blkg_hint); + blkg = rcu_dereference_check(blkcg->blkg_hint, + lockdep_is_held(&q->queue_lock)); if (blkg && blkg->q == q) return blkg; |