From f94afee9980c5722dfff6d3e46fd34a36293a509 Mon Sep 17 00:00:00 2001
From: Hui Su <sh_def@163.com>
Date: Tue, 13 Oct 2020 16:56:52 -0700
Subject: [PATCH] mm/z3fold.c: use xx_zalloc instead xx_alloc and memset
alloc_slots() allocates memory for slots using kmem_cache_alloc(), then
memsets it. We can just use kmem_cache_zalloc().
Signed-off-by: Hui Su <sh_def@163.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200926100834.GA184671@rlk
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/z3fold.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/z3fold.c b/mm/z3fold.c
index 460b0feced26..18feaa0bc537 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -212,13 +212,12 @@ static inline struct z3fold_buddy_slots *alloc_slots(struct z3fold_pool *pool,
{
struct z3fold_buddy_slots *slots;
- slots = kmem_cache_alloc(pool->c_handle,
+ slots = kmem_cache_zalloc(pool->c_handle,
(gfp & ~(__GFP_HIGHMEM | __GFP_MOVABLE)));
if (slots) {
/* It will be freed separately in free_handle(). */
kmemleak_not_leak(slots);
- memset(slots->slot, 0, sizeof(slots->slot));
slots->pool = (unsigned long)pool;
rwlock_init(&slots->lock);
}