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=-9.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 EA067C2D0A8 for ; Sat, 26 Sep 2020 10:09:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A48942311D for ; Sat, 26 Sep 2020 10:09:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="HK2MQF8S" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726849AbgIZKJG (ORCPT ); Sat, 26 Sep 2020 06:09:06 -0400 Received: from m12-15.163.com ([220.181.12.15]:59754 "EHLO m12-15.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726183AbgIZKJG (ORCPT ); Sat, 26 Sep 2020 06:09:06 -0400 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-Type: text/plain; charset=us-ascii 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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); } -- 2.25.1