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-rw-r--r--block/blk-cgroup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 2a4f77f2b229..54ec1721cd3e 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -30,6 +30,8 @@ struct blkcg blkcg_root = { .cfq_weight = 2 * CFQ_WEIGHT_DEFAULT,
.cfq_leaf_weight = 2 * CFQ_WEIGHT_DEFAULT, };
EXPORT_SYMBOL_GPL(blkcg_root);
+struct cgroup_subsys_state * const blkcg_root_css = &blkcg_root.css;
+
static struct blkcg_policy *blkcg_policy[BLKCG_MAX_POLS];
static bool blkcg_policy_enabled(struct request_queue *q,