The pwq's rcu callback func only to release 'pwq' resources,
can use 'kfree_rcu' instead of 'call_rcu' func.
Signed-off-by: Zqiang <qiang.zh...@windriver.com>
---
kernel/workqueue.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ac088ce6059b..8d4fe649631a 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3653,11 +3653,6 @@ static struct worker_pool *get_unbound_pool(const struct
workqueue_attrs *attrs)
return NULL;
}
-static void rcu_free_pwq(struct rcu_head *rcu)
-{
- kmem_cache_free(pwq_cache,
- container_of(rcu, struct pool_workqueue, rcu));
-}
/*
* Scheduled on system_wq by put_pwq() when an unbound pwq hits zero refcnt
@@ -3683,7 +3678,7 @@ static void pwq_unbound_release_workfn(struct work_struct
*work)
put_unbound_pool(pool);
mutex_unlock(&wq_pool_mutex);
- call_rcu(&pwq->rcu, rcu_free_pwq);
+ kfree_rcu(pwq, rcu);
/*
* If we're the last pwq going away, @wq is already dead and no one
--
2.17.1
