The rcu callback cfq_cfqd_free() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(cfq_cfqd_free).
Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
---
block/cfq-iosched.c | 7 +------
1 files changed, 1 insertions(+), 6 deletions(-)
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index ea83a4f..32fe43e 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -3812,11 +3812,6 @@ static void cfq_put_async_queues(struct cfq_data *cfqd)
cfq_put_queue(cfqd->async_idle_cfqq);
}
-static void cfq_cfqd_free(struct rcu_head *head)
-{
- kfree(container_of(head, struct cfq_data, rcu));
-}
-
static void cfq_exit_queue(struct elevator_queue *e)
{
struct cfq_data *cfqd = e->elevator_data;
@@ -3850,7 +3845,7 @@ static void cfq_exit_queue(struct elevator_queue *e)
spin_unlock(&cic_index_lock);
/* Wait for cfqg->blkg->key accessors to exit their grace periods. */
- call_rcu(&cfqd->rcu, cfq_cfqd_free);
+ kfree_rcu(cfqd, rcu);
}
static int cfq_alloc_cic_index(void)
--
1.7.4
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