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-rw-r--r--block/blk-cgroup.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index aaf9903ad7b2..fc49be622e05 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -2086,6 +2086,9 @@ void blk_cgroup_bio_start(struct bio *bio)
struct blkg_iostat_set *bis;
unsigned long flags;
+ if (!cgroup_subsys_on_dfl(io_cgrp_subsys))
+ return;
+
/* Root-level stats are sourced from system-wide IO stats */
if (!cgroup_parent(blkcg->css.cgroup))
return;
@@ -2116,8 +2119,7 @@ void blk_cgroup_bio_start(struct bio *bio)
}
u64_stats_update_end_irqrestore(&bis->sync, flags);
- if (cgroup_subsys_on_dfl(io_cgrp_subsys))
- cgroup_rstat_updated(blkcg->css.cgroup, cpu);
+ cgroup_rstat_updated(blkcg->css.cgroup, cpu);
put_cpu();
}