From patchwork Mon Mar 30 22:08:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yang X-Patchwork-Id: 11466387 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 72A6881 for ; Mon, 30 Mar 2020 22:09:12 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3FA2B206CC for ; Mon, 30 Mar 2020 22:09:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UKf24TUL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3FA2B206CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 691216B0032; Mon, 30 Mar 2020 18:09:11 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 63FF56B0037; Mon, 30 Mar 2020 18:09:11 -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 556306B006C; Mon, 30 Mar 2020 18:09:11 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0144.hostedemail.com [216.40.44.144]) by kanga.kvack.org (Postfix) with ESMTP id 3B4CB6B0032 for ; Mon, 30 Mar 2020 18:09:11 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 11CD9180AD804 for ; Mon, 30 Mar 2020 22:09:11 +0000 (UTC) X-FDA: 76653420102.05.brain76_15f0bb56a3f35 X-Spam-Summary: 2,0,0,51fc13cf0285ebcd,d41d8cd98f00b204,richard.weiyang@gmail.com,,RULES_HIT:41:355:379:541:800:960:973:982:988:989:1260:1345:1437:1534:1541:1711:1730:1747:1777:1792:2194:2198:2199:2200:2393:2559:2562:3138:3139:3140:3141:3142:3352:3865:3866:4321:5007:6261:6653:7514:7903:9413:10004:11026:11473:11658:11914:12043:12296:12297:12517:12519:12555:12895:13069:13311:13357:14181:14384:14687:14721:21080:21324:21444:21451:21627:21666:30012:30054:30064,0,RBL:209.85.128.67:@gmail.com:.lbl8.mailshell.net-62.18.0.100 66.100.201.100,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: brain76_15f0bb56a3f35 X-Filterd-Recvd-Size: 3873 Received: from mail-wm1-f67.google.com (mail-wm1-f67.google.com [209.85.128.67]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Mon, 30 Mar 2020 22:09:10 +0000 (UTC) Received: by mail-wm1-f67.google.com with SMTP id c81so472492wmd.4 for ; Mon, 30 Mar 2020 15:09:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=ik/3e0uSzSzcYKdS0/OeT2EBEqYErrSILcGFWXs+2RM=; b=UKf24TULpgTKJkpnnCkZEN2gEFN63tvYWD6w41Q4gya0Vq0f09iToO7bl/oB1ZNu1I +0yED3dPm+FJXmb22sY74RrD/wLrvk+TzOh++9pEq937ku5LKzlLKLbIC1/cLmRF9JGh LGS1Q7OfD8Ne+svufwH86ipe5b3qGXcIjpyKxe+GsXMLC/l9e5NpHtvCVj2HEwh1AjEo JAG0gCIGwsXq0TB69oyMticmrZiArh9E+JW7jV3U38k6sZSiwUyQi6xL6HuUspFxjE1o wB+Tl/94HobSZdFyXYLMNZLq5Tr+4Z+GIfvh8MhzsAx7n8rQ6loCcmHgebUg1ZoBGPCo PUJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=ik/3e0uSzSzcYKdS0/OeT2EBEqYErrSILcGFWXs+2RM=; b=GLNPfD3HBJZ03/1ZlDxTA+EB+xkrUEzyO/EmjAbBYs+uju5ZJ6+Cv8UxbLiVbVgjdR iYmpg587Poa6tpvZ+ThjuztcduicFOL3/5bJwJrlpYj0DMRQOM/M6w2uUqTUc6XrxvTf 12UX7l2V5fNnd//1fy9grSxTH9nQF7jCFsQBo5TsXVfEyqd/1XaX5cPpVNKZd/FyoJue lVn8S2K46IoU/FA3502rqgiHNJkzsOSvg8BCxVzq64LWOkx+d0QCFAkbZAnLmOtCXjJ+ 0moYjvcmasVvGpnapJ2iMoTvQcUkyML0R22Jwc7V31Z3ILBxzE4aCFMJvsz/v6sTtUOJ FF/A== X-Gm-Message-State: ANhLgQ08WOgFu+PoCXF7m0AG+Uyv2AUEhkfEhbuS2X83PuBU3P6GBz1D YdHjAKh5X4rmUCw4C7YOMQ4= X-Google-Smtp-Source: ADFU+vuuC/kM6I+Yns0EcU4d71N+MU8c4b3Y0qKLRXiZ5TPZCVcveYtXDSjtrUkUuS2HMFVUkbqj4w== X-Received: by 2002:a7b:c308:: with SMTP id k8mr251708wmj.40.1585606149273; Mon, 30 Mar 2020 15:09:09 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id i8sm25093845wrb.41.2020.03.30.15.09.08 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 30 Mar 2020 15:09:08 -0700 (PDT) From: Wei Yang To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, jgg@ziepe.ca, david@redhat.com, jhubbard@nvidia.com, bhe@redhat.com, Wei Yang Subject: [Patch v4] mm/page_alloc.c: use NODE_MASK_NONE in build_zonelists() Date: Mon, 30 Mar 2020 22:08:40 +0000 Message-Id: <20200330220840.21228-1-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 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: Slightly simplify the code by initializing user_mask with NODE_MASK_NONE, instead of later calling nodes_clear(). This saves a line of code. Signed-off-by: Wei Yang Reviewed-by: John Hubbard Reviewed-by: David Hildenbrand Reviewed-by: Pankaj Gupta --- v4: adjust subject/description as suggested by John Hubbard v3: adjust the commit log a little v2: use NODE_MASK_NONE as suggested by David Hildenbrand --- mm/page_alloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ef790dfad6aa..dfcf2682ed40 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5587,14 +5587,13 @@ static void build_zonelists(pg_data_t *pgdat) { static int node_order[MAX_NUMNODES]; int node, load, nr_nodes = 0; - nodemask_t used_mask; + nodemask_t used_mask = NODE_MASK_NONE; int local_node, prev_node; /* NUMA-aware ordering of nodes */ local_node = pgdat->node_id; load = nr_online_nodes; prev_node = local_node; - nodes_clear(used_mask); memset(node_order, 0, sizeof(node_order)); while ((node = find_next_best_node(local_node, &used_mask)) >= 0) {