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cfq-iosched: Fix a memory leak of per cpu stats for root group 

We allocated per cpu stats struct for root group but did not free it.
Fix it.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
hifive-unleashed-5.1
Vivek Goyal 2011-05-23 10:02:19 +02:00 committed by Jens Axboe
parent 345227d705
commit 2abae55f5a
1 changed files with 5 additions and 0 deletions
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5
block/cfq-iosched.c
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@ -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);
}