[PATCH v1] mm: simplify list initialization in barn_shrink()

[Baolin Liu <liubaolin12138@163.com>]

From: Baolin Liu <liubaolin@kylinos.cn>

In barn_shrink(),use LIST_HEAD() to declare and initialize
the list_head in one step instead of using INIT_LIST_HEAD() separately.

No functional change.

Signed-off-by: Baolin Liu <liubaolin@kylinos.cn>
---
 mm/slub.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index f1a5373eee7b..0ab5d87305af 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3011,14 +3011,11 @@ static void barn_init(struct node_barn *barn)
 
 static void barn_shrink(struct kmem_cache *s, struct node_barn *barn)
 {
-	struct list_head empty_list;
-	struct list_head full_list;
+	LIST_HEAD(empty_list);
+	LIST_HEAD(full_list);
 	struct slab_sheaf *sheaf, *sheaf2;
 	unsigned long flags;
 
-	INIT_LIST_HEAD(&empty_list);
-	INIT_LIST_HEAD(&full_list);
-
 	spin_lock_irqsave(&barn->lock, flags);
 
 	list_splice_init(&barn->sheaves_full, &full_list);
-- 
2.39.2