From: Hui Su <sh_def@163.com>
Date: Tue, 13 Oct 2020 23:56:52 +0000 (-0700)
Subject: mm/z3fold.c: use xx_zalloc instead xx_alloc and memset
X-Git-Tag: v5.10.7~1450^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f94afee9980c5722dfff6d3e46fd34a36293a509;p=platform%2Fkernel%2Flinux-rpi.git

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>
---

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 460b0fe..18feaa0 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);
 	}