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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>
This commit is contained in:
Hui Su 2020-10-13 16:56:52 -07:00 committed by Linus Torvalds
parent 01c4776ba0
commit f94afee998
1 changed files with 1 additions and 2 deletions
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mm/z3fold.c
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@ -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);
}