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-rw-r--r--mm/zswap.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/mm/zswap.c b/mm/zswap.c
index de0f119b1780..275b22cc8df4 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -117,7 +117,7 @@ struct zswap_pool {
struct crypto_comp * __percpu *tfm;
struct kref kref;
struct list_head list;
- struct rcu_head rcu_head;
+ struct work_struct work;
struct notifier_block notifier;
char tfm_name[CRYPTO_MAX_ALG_NAME];
};
@@ -658,9 +658,11 @@ static int __must_check zswap_pool_get(struct zswap_pool *pool)
return kref_get_unless_zero(&pool->kref);
}
-static void __zswap_pool_release(struct rcu_head *head)
+static void __zswap_pool_release(struct work_struct *work)
{
- struct zswap_pool *pool = container_of(head, typeof(*pool), rcu_head);
+ struct zswap_pool *pool = container_of(work, typeof(*pool), work);
+
+ synchronize_rcu();
/* nobody should have been able to get a kref... */
WARN_ON(kref_get_unless_zero(&pool->kref));
@@ -680,7 +682,9 @@ static void __zswap_pool_empty(struct kref *kref)
WARN_ON(pool == zswap_pool_current());
list_del_rcu(&pool->list);
- call_rcu(&pool->rcu_head, __zswap_pool_release);
+
+ INIT_WORK(&pool->work, __zswap_pool_release);
+ schedule_work(&pool->work);
spin_unlock(&zswap_pools_lock);
}