From patchwork Fri Oct 16 02:44:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11840615 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 14D4514B4 for ; Fri, 16 Oct 2020 02:44:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B6E7120EDD for ; Fri, 16 Oct 2020 02:44:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="uHns43jY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6E7120EDD 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 B805694001C; Thu, 15 Oct 2020 22:44:27 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id B316F940007; Thu, 15 Oct 2020 22:44:27 -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 A6EB994001C; Thu, 15 Oct 2020 22:44:27 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0152.hostedemail.com [216.40.44.152]) by kanga.kvack.org (Postfix) with ESMTP id 79552940007 for ; Thu, 15 Oct 2020 22:44:27 -0400 (EDT) Received: from smtpin14.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 17B19180AD807 for ; Fri, 16 Oct 2020 02:44:27 +0000 (UTC) X-FDA: 77376244974.14.wine29_4210e3c27219 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin14.hostedemail.com (Postfix) with ESMTP id ED37A18229835 for ; Fri, 16 Oct 2020 02:44:26 +0000 (UTC) X-Spam-Summary: 1,0,0,b01c4dceaf4dc070,d41d8cd98f00b204,akpm@linux-foundation.org,,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1345:1359:1381:1431:1437:1534:1541:1711:1730:1747:1777:1792:2393:2525:2559:2563:2682:2685:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3865:3867:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6261:6653:7576:7904:9025:9036:9545:10004:11026:11658:11914:12043:12048:12297:12438:12517:12519:12555:12679:12986:13069:13311:13357:13846:14096:14181:14384:14721:21080:21451:21627:21939:30054,0,RBL:198.145.29.99:@linux-foundation.org:.lbl8.mailshell.net-64.100.201.201 62.2.0.100;04yreym6gbr8wh5bwf7j38w5d3hpxopzjgn1jqoc1w1cdt4p48jqe81u35zd71z.3u5dj98f8qpr95u3df7qfyt84xjhm5q7dhzi69xz6cg56ttp4gjoafdddee5qji.w-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: wine29_4210e3c27219 X-Filterd-Recvd-Size: 2852 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf46.hostedemail.com (Postfix) with ESMTP for ; Fri, 16 Oct 2020 02:44:26 +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 6E4A82145D; Fri, 16 Oct 2020 02:44:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602816265; bh=vHYOGHu0gT/r5g9stsKEey/EYU06gb0oYyYcbHmQLys=; h=Date:From:To:Subject:In-Reply-To:From; b=uHns43jYZ6cgoBvnk50gB0/08Tzlfx4eeJfZnqbUvdcuYYDUK4ChgCqb8FvXESC25 1PJLJnMRRY4oGVj/l+P5SyrLMhBD/XwjCwVaBy4QTQaVu4NW1ioynVs3JMAIZpR3pC hMoJKCJ+yJP0BlIt/r4f797WiTPXaKfLA+0uY1oM= Date: Thu, 15 Oct 2020 19:44:24 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linmiaohe@huawei.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 056/156] mm/vmstat.c: use helper macro abs() Message-ID: <20201016024424.biNnIIAcg%akpm@linux-foundation.org> In-Reply-To: <20201015192732.f448da14e9854c7cb7299956@linux-foundation.org> User-Agent: s-nail v14.8.16 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: Miaohe Lin Subject: mm/vmstat.c: use helper macro abs() Use helper macro abs() to simplify the "x > t || x < -t" cmp. Link: https://lkml.kernel.org/r/20200905084008.15748-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton --- mm/vmstat.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/mm/vmstat.c~mm-vmstat-use-helper-macro-abs +++ a/mm/vmstat.c @@ -325,7 +325,7 @@ void __mod_zone_page_state(struct zone * t = __this_cpu_read(pcp->stat_threshold); - if (unlikely(x > t || x < -t)) { + if (unlikely(abs(x) > t)) { zone_page_state_add(x, zone, item); x = 0; } @@ -350,7 +350,7 @@ void __mod_node_page_state(struct pglist t = __this_cpu_read(pcp->stat_threshold); - if (unlikely(x > t || x < -t)) { + if (unlikely(abs(x) > t)) { node_page_state_add(x, pgdat, item); x = 0; } @@ -511,7 +511,7 @@ static inline void mod_zone_state(struct o = this_cpu_read(*p); n = delta + o; - if (n > t || n < -t) { + if (abs(n) > t) { int os = overstep_mode * (t >> 1) ; /* Overflow must be added to zone counters */ @@ -573,7 +573,7 @@ static inline void mod_node_state(struct o = this_cpu_read(*p); n = delta + o; - if (n > t || n < -t) { + if (abs(n) > t) { int os = overstep_mode * (t >> 1) ; /* Overflow must be added to node counters */