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-rw-r--r--block/cfq-iosched.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index d646b279c8b..0316f6eece0 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -3940,6 +3940,11 @@ static void cfq_exit_queue(struct elevator_queue *e)
*/
if (wait)
synchronize_rcu();
+
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+ /* Free up per cpu stats for root group */
+ free_percpu(cfqd->root_group.blkg.stats_cpu);
+#endif
kfree(cfqd);
}