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=-3.8 required=3.0 tests=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 0872BC433E1 for ; Wed, 3 Jun 2020 22:59:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BC8FD208E4 for ; Wed, 3 Jun 2020 22:59:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="H6vHEiQG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BC8FD208E4 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 644E9280030; Wed, 3 Jun 2020 18:59:07 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 57E95280003; Wed, 3 Jun 2020 18:59:07 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4951E280030; Wed, 3 Jun 2020 18:59:07 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0247.hostedemail.com [216.40.44.247]) by kanga.kvack.org (Postfix) with ESMTP id 27D85280003 for ; Wed, 3 Jun 2020 18:59:07 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id E21C71EFF for ; Wed, 3 Jun 2020 22:59:06 +0000 (UTC) X-FDA: 76889417892.09.brake02_1552e7be52705 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id C19E5180AD806 for ; Wed, 3 Jun 2020 22:59:06 +0000 (UTC) X-HE-Tag: brake02_1552e7be52705 X-Filterd-Recvd-Size: 2726 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf48.hostedemail.com (Postfix) with ESMTP for ; Wed, 3 Jun 2020 22:59:06 +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 61346208C9; Wed, 3 Jun 2020 22:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591225145; bh=jbW7/3wWc2148zL89RJCbNKdyDKxb+18skP0OJshURw=; h=Date:From:To:Subject:In-Reply-To:From; b=H6vHEiQGrtloe/prHmGnJBGnP4+20PsM6wTDTc6fId3BqG/cVaiywvv8qYZS2Ctkp KEcZSHZUcb/9E3OkPykdskUJFJiUh+TzoMVBVpZyO5cUn9+WVZW+ZmXldum+nKt/Ov K+h4l3UJzei8Hg0W/yWJ1OZqzE6BvflfZjbcRwOM= Date: Wed, 03 Jun 2020 15:59:05 -0700 From: Andrew Morton To: akpm@linux-foundation.org, david@redhat.com, jhubbard@nvidia.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, pankaj.gupta.linux@gmail.com, richard.weiyang@gmail.com, torvalds@linux-foundation.org Subject: [patch 044/131] mm/page_alloc.c: use NODE_MASK_NONE in build_zonelists() Message-ID: <20200603225905.inyR0Yovh%akpm@linux-foundation.org> In-Reply-To: <20200603155549.e041363450869eaae4c7f05b@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Rspamd-Queue-Id: C19E5180AD806 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 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: Wei Yang Subject: mm/page_alloc.c: use NODE_MASK_NONE in build_zonelists() Slightly simplify the code by initializing user_mask with NODE_MASK_NONE, instead of later calling nodes_clear(). This saves a line of code. Link: http://lkml.kernel.org/r/20200330220840.21228-1-richard.weiyang@gmail.com Signed-off-by: Wei Yang Reviewed-by: John Hubbard Reviewed-by: David Hildenbrand Reviewed-by: Pankaj Gupta Signed-off-by: Andrew Morton --- mm/page_alloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/page_alloc.c~mm-page_allocc-use-node_mask_none-in-build_zonelists +++ a/mm/page_alloc.c @@ -5692,14 +5692,13 @@ static void build_zonelists(pg_data_t *p { 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) { _