Since SLOB was removed and since
commit 6c6c47b063b5 ("mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()"),
it is not necessary to use call_rcu when the callback only performs
kmem_cache_free. Use kfree_rcu() directly.
The changes were made using Coccinelle.
Signed-off-by: Hongling Zeng <zenghongling@xxxxxxxxxx>
---
block/blk-core.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index bc5e8c5..459eb7e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -245,14 +245,6 @@ void blk_clear_pm_only(struct request_queue *q)
}
EXPORT_SYMBOL_GPL(blk_clear_pm_only);
-static void blk_free_queue_rcu(struct rcu_head *rcu_head)
-{
- struct request_queue *q = container_of(rcu_head,
- struct request_queue, rcu_head);
-
- percpu_ref_exit(&q->q_usage_counter);
- kmem_cache_free(blk_requestq_cachep, q);
-}
static void blk_free_queue(struct request_queue *q)
{
@@ -261,7 +253,7 @@ static void blk_free_queue(struct request_queue *q)
blk_mq_release(q);
ida_free(&blk_queue_ida, q->id);
- call_rcu(&q->rcu_head, blk_free_queue_rcu);
+ kfree_rcu(q, rcu_head);
}
/**
--
2.1.0
