From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84AAEC433DF for ; Tue, 13 Oct 2020 23:56:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2BAD22222E for ; Tue, 13 Oct 2020 23:56:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="mciLY0p8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2BAD22222E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BA0BE94000F; Tue, 13 Oct 2020 19:56:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B54B0940007; Tue, 13 Oct 2020 19:56:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A902C94000F; Tue, 13 Oct 2020 19:56:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0062.hostedemail.com [216.40.44.62]) by kanga.kvack.org (Postfix) with ESMTP id 7F737940007 for ; Tue, 13 Oct 2020 19:56:54 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 328711EE6 for ; Tue, 13 Oct 2020 23:56:54 +0000 (UTC) X-FDA: 77368565148.30.skirt75_1c1354d27207 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin30.hostedemail.com (Postfix) with ESMTP id 0D1A3180B3AA7 for ; Tue, 13 Oct 2020 23:56:54 +0000 (UTC) X-HE-Tag: skirt75_1c1354d27207 X-Filterd-Recvd-Size: 2419 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf07.hostedemail.com (Postfix) with ESMTP for ; Tue, 13 Oct 2020 23:56:53 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BEA8E2222F; Tue, 13 Oct 2020 23:56:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602633413; bh=z5J91t5FC9FcStAWHyI5DzrSoiGme3mVZCR9CrkvMLA=; h=Date:From:To:Subject:In-Reply-To:From; b=mciLY0p8fMv4q7Bjo5ULIprku7Hpyd76GT9aMG7VwvN8J6oaIYOqoedT44waRHcib ZV25cKYD7Sm73WspB/0M+sbAv62Punke9EdXBBpq71VgIpWnJmp12oRSs6Am5fuixJ 9lMmuvQv9dq+je0M3mFnU+voWGdGuzTBRIsCwg1U= Date: Tue, 13 Oct 2020 16:56:52 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, sh_def@163.com, torvalds@linux-foundation.org Subject: [patch 154/181] mm/z3fold.c: use xx_zalloc instead xx_alloc and memset Message-ID: <20201013235652.hOUXk_sFI%akpm@linux-foundation.org> In-Reply-To: <20201013164658.3bfd96cc224d8923e66a9f4e@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Hui Su 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 Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton --- 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); } _