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=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,USER_AGENT_GIT 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 80D93C2D0E8 for ; Fri, 27 Mar 2020 22:01:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 557AD2071B for ; Fri, 27 Mar 2020 22:01:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O/TUZja2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727771AbgC0WBp (ORCPT ); Fri, 27 Mar 2020 18:01:45 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:34242 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726781AbgC0WBo (ORCPT ); Fri, 27 Mar 2020 18:01:44 -0400 Received: by mail-wr1-f68.google.com with SMTP id 65so13430431wrl.1 for ; Fri, 27 Mar 2020 15:01:42 -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=eTSWsRe+abYo5Q3Wjbmc6XN3lWlOvN/WxCYogj6bEeQ=; b=O/TUZja2YQbTR2MQe2O/+i3o5XBdDGDXbI04IBdld8DfWXT1YHRrtg9UYtv2RMMS+b LkUKoIZKnFAki+Tc7YHvgzbUTsQtS+nOs28cuEQce6lbkM8ZUxvluTbI/aAPT8+cniu1 z3MkANBXfoTmrvW4aExbl9KJsWhbM/Z1xS7QlnpciMxcwQZuJzEeCe5gyq2JjNcQmBMu lxNW7JIry0nzsweknTVGNENhJNpoehU3pz0MYt1oA98+BxoYAQ0Akwgvg36g231GiveM i9zchGjEkFunSx7vO5s8DqEaFVyotANoAXVHB3TP08nhtlBgj/7ZF7m7wWEwse1hq4EG ruRg== 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=eTSWsRe+abYo5Q3Wjbmc6XN3lWlOvN/WxCYogj6bEeQ=; b=s8eYzgihL/cJ8GEsNlFFjjLi7tRH25+8fniTTm7Xl48O3SB8cZ1lXcmVXHyw7NFVhF SqnMB/Ti/wnZDcDpCkKmJdNO6LAjTZMTyddxcdwfZsqGy1Bty5WXizuG9vQ9FbvsxteE EmDfXCb4v/OkM4phYg6Bg9nphsu1tJvJyMMi6nMLRYo40/kiCb6wb6V/0Dimnvp+84C6 Hez5ET9JTTexo0KAxMDLIGz/KteEKyOuGwdMAlYt13qvF3FEzz2yOuwwutwKMqRNFMMD OhF3hneE6dZ3zHhapevrQ4E5XvNIWVHu1IYkkgkabJ/MsFbXK2hEwOoLLfp8DF86fX2I EnGA== X-Gm-Message-State: ANhLgQ0pRLPb1OcNHgJ3cH6qXs2W10uWTfiu0+8kWyuwiQwIT3lgq3Mx /ez4zfIJMdxgxBlQ8hs89zR5ly7z X-Google-Smtp-Source: ADFU+vuKMRzAFYnr9n+j4lDMfaJF3f9pk6VBECs97XO6gsauwAapLshjF4PrYgtS+w6KzVFWDCZAqQ== X-Received: by 2002:adf:d0cb:: with SMTP id z11mr1667954wrh.1.1585346502328; Fri, 27 Mar 2020 15:01:42 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id l83sm9670639wmf.43.2020.03.27.15.01.41 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 27 Mar 2020 15:01:41 -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, Wei Yang Subject: [Patch v2 1/2] mm/page_alloc.c: use NODE_MASK_NONE define used_mask Date: Fri, 27 Mar 2020 22:01:20 +0000 Message-Id: <20200327220121.27823-1-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For all 0 nodemask_t, we have already define macro NODE_MASK_NONE. Leverage this instead of clear it at run time. Signed-off-by: Wei Yang --- 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) { -- 2.23.0