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-rw-r--r--kernel/cgroup/rstat.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c
index 3386fb251a9e..339366e257d4 100644
--- a/kernel/cgroup/rstat.c
+++ b/kernel/cgroup/rstat.c
@@ -145,8 +145,17 @@ static void cgroup_rstat_flush_locked(struct cgroup *cgrp, bool may_sleep)
struct cgroup *pos = NULL;
raw_spin_lock(cpu_lock);
- while ((pos = cgroup_rstat_cpu_pop_updated(pos, cgrp, cpu)))
+ while ((pos = cgroup_rstat_cpu_pop_updated(pos, cgrp, cpu))) {
+ struct cgroup_subsys_state *css;
+
cgroup_base_stat_flush(pos, cpu);
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(css, &pos->rstat_css_list,
+ rstat_css_node)
+ css->ss->css_rstat_flush(css, cpu);
+ rcu_read_unlock();
+ }
raw_spin_unlock(cpu_lock);
/* if @may_sleep, play nice and yield if necessary */