The patch titled Subject: mm/z3fold.c: use xx_zalloc instead xx_alloc and memset has been added to the -mm tree. Its filename is mmz3fold-use-xx_zalloc-instead-xx_alloc-and-memset.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mmz3fold-use-xx_zalloc-instead-xx_alloc-and-memset.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mmz3fold-use-xx_zalloc-instead-xx_alloc-and-memset.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Hui Su <sh_def@xxxxxxx> Subject: 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(). Link: https://lkml.kernel.org/r/20200926100834.GA184671@rlk Signed-off-by: Hui Su <sh_def@xxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/z3fold.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/z3fold.c~mmz3fold-use-xx_zalloc-instead-xx_alloc-and-memset +++ a/mm/z3fold.c @@ -212,13 +212,12 @@ static inline struct z3fold_buddy_slots { 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); } _ Patches currently in -mm which might be from sh_def@xxxxxxx are mmkmemleak-testc-move-kmemleak-testc-to-samples-dir.patch mm-vmallocc-update-the-comment-in-__vmalloc_area_node.patch mm-vmallocc-fix-the-comment-of-find_vm_area.patch mm-vmscan-fix-comments-for-isolate_lru_page.patch mmz3fold-use-xx_zalloc-instead-xx_alloc-and-memset.patch mm-fix-some-comments-in-page_allocc-and-mempolicyc.patch