From patchwork Sat Sep 26 10:08:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Su X-Patchwork-Id: 11801219 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2D7A2139F for ; Sat, 26 Sep 2020 10:08:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9D65A23730 for ; Sat, 26 Sep 2020 10:08:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="HK2MQF8S" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9D65A23730 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=163.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 772E96B005C; Sat, 26 Sep 2020 06:08:39 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 723F36B0062; Sat, 26 Sep 2020 06:08:39 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 63B3C8E0001; Sat, 26 Sep 2020 06:08:39 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0049.hostedemail.com [216.40.44.49]) by kanga.kvack.org (Postfix) with ESMTP id 4E3296B005C for ; Sat, 26 Sep 2020 06:08:39 -0400 (EDT) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 0C062181AE867 for ; Sat, 26 Sep 2020 10:08:39 +0000 (UTC) X-FDA: 77304788358.20.clock32_1a0cbbd2716f Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin20.hostedemail.com (Postfix) with ESMTP id E0AEE180C07AF for ; Sat, 26 Sep 2020 10:08:38 +0000 (UTC) X-Spam-Summary: 1,0,0,a1ca8c8544335af4,d41d8cd98f00b204,sh_def@163.com,,RULES_HIT:41:355:379:582:800:960:966:973:988:989:1152:1260:1277:1312:1313:1314:1345:1381:1437:1516:1518:1519:1534:1540:1593:1594:1595:1596:1711:1714:1730:1747:1777:1792:2196:2199:2393:2559:2562:2693:3138:3139:3140:3141:3142:3351:3870:3872:3876:4321:4385:5007:6119:6261:6653:7558:7903:10004:10400:11026:11334:11658:11914:12043:12297:12555:12895:12986:13069:13161:13229:13311:13357:13439:13895:14181:14394:14721:21080:21627:30054,0,RBL:220.181.12.15:@163.com:.lbl8.mailshell.net-62.50.2.100 66.100.201.100;04yg6rtsiuwjpxbyi8rgy54n84yf5yc171zen5mk845fcrtimsg5wy1eanw188f.wbup4s7hkpy6rjunriwgcpmsfqtqrs4cy5joa98dq6z54janamz7eg6qo5pfnyt.n-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: clock32_1a0cbbd2716f X-Filterd-Recvd-Size: 2360 Received: from m12-15.163.com (m12-15.163.com [220.181.12.15]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Sat, 26 Sep 2020 10:08:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version; bh=VvX48 q0TXBplICgakqAuHRvedusBSf93a4uxMLBZIHU=; b=HK2MQF8STv9bJm3UPkOJl v9ynD+hvgsfEARKai63Aujfhx+krHBbmrT9iS2mNhsN1nA5frNHF+LneDLyUNxJK o2ZrcfNh2YJyKqprHUle59cMzhTRDRIdl9Ib/Cv3iZaRnvg+3UaE3ocoikJLy3St egA5Wk+iWVClnm3vQLP/kY= Received: from localhost (unknown [101.86.214.224]) by smtp11 (Coremail) with SMTP id D8CowAAn_5giE29fDiiuDw--.21927S2; Sat, 26 Sep 2020 18:08:34 +0800 (CST) Date: Sat, 26 Sep 2020 18:08:34 +0800 From: Hui Su To: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm,z3fold: use xx_zalloc instead xx_alloc and memset Message-ID: <20200926100834.GA184671@rlk> MIME-Version: 1.0 Content-Disposition: inline X-CM-TRANSID: D8CowAAn_5giE29fDiiuDw--.21927S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7Gr4UJF1xWFy5Kr4xKw1rWFg_yoWfXwb_ZF Z7tF4DWry5Ja4vyanxAw10vFZ2qa97Cr4ruFnIgryft345AryxC3sFgr13ur43Zr429F9r K3y3GrWrJ3W7GjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU5d3kJUUUUU== X-Originating-IP: [101.86.214.224] X-CM-SenderInfo: xvkbvvri6rljoofrz/1tbiLgKrX1SIqLklqQAAsZ X-Bogosity: Ham, tests=bogofilter, spamicity=0.134709, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: alloc_slots() allocate memory for slots by kmem_cache_alloc(), then memset it, we can just use kmem_cache_zalloc() api. Signed-off-by: Hui Su --- 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); }