Message ID | 20200114002923.VHKO6%akpm@linux-foundation.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=xs82=3D=kvack.org=owner-linux-mm@kernel.org> 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 662BA109A for <patchwork-linux-mm@patchwork.kernel.org>; Tue, 14 Jan 2020 00:29:27 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 32EE021569 for <patchwork-linux-mm@patchwork.kernel.org>; Tue, 14 Jan 2020 00:29:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="o2lkx9nI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32EE021569 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 C90A78E000C; Mon, 13 Jan 2020 19:29:25 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id C150F8E0003; Mon, 13 Jan 2020 19:29:25 -0500 (EST) 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 A69B58E000C; Mon, 13 Jan 2020 19:29:25 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0068.hostedemail.com [216.40.44.68]) by kanga.kvack.org (Postfix) with ESMTP id 8F5EB8E0003 for <linux-mm@kvack.org>; Mon, 13 Jan 2020 19:29:25 -0500 (EST) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 4A3A71F08 for <linux-mm@kvack.org>; Tue, 14 Jan 2020 00:29:25 +0000 (UTC) X-FDA: 76374355890.10.bomb06_6f51000996458 X-Spam-Summary: 2,0,0,778340fd7ef19a7a,d41d8cd98f00b204,akpm@linux-foundation.org,:tj@kernel.org:cai@lca.pw:axboe@kernel.dk:wenyang@linux.alibaba.com:akpm@linux-foundation.org::mm-commits@vger.kernel.org:torvalds@linux-foundation.org,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1263:1345:1359:1381:1431:1437:1534:1543:1711:1730:1747:1777:1792:1801:2197:2199:2393:2525:2559:2563:2682:2685:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3353:3653:3865:3866:3867:3868:3870:3871:3872:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:4605:5007:6119:6261:6653:7576:7901:7903:7974:8599:9025:9121:9545:10004:10913:11026:11658:11914:12043:12048:12296:12297:12517:12519:12555:12679:12783:12895:12986:13153:13161:13228:13229:13255:13870:14181:14721:14849:21080:21221:21444:21451:21611:21627:21939:30012:30054,0,RBL:error,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:3,LUA_ SUMMARY: X-HE-Tag: bomb06_6f51000996458 X-Filterd-Recvd-Size: 4500 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf21.hostedemail.com (Postfix) with ESMTP for <linux-mm@kvack.org>; Tue, 14 Jan 2020 00:29:24 +0000 (UTC) Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) (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 D644B207FF; Tue, 14 Jan 2020 00:29:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578961764; bh=hTutnKUShinhYHhb7IP1DVaWqN0LtkSsGMLzAJoqPZQ=; h=Date:From:To:Subject:In-Reply-To:From; b=o2lkx9nIGcuo64ahNpkZBbzFxkfiqsKqzQBjqjI/Iy2ghSA/PehlnwXahcDw+Kiij VHD5ltj2A24umWQGBp8NPAMXnWymZQwWpMDuXt6VVmkcKf0m3MO4Lp8dZkMwfpBVGv oImQKPhlV5GF4aphs8rE02tJIsZ91Xy4OxFh05l4= Date: Mon, 13 Jan 2020 16:29:23 -0800 From: Andrew Morton <akpm@linux-foundation.org> To: tj@kernel.org, cai@lca.pw, axboe@kernel.dk, wenyang@linux.alibaba.com, akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 07/11] mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() Message-ID: <20200114002923.VHKO6%akpm@linux-foundation.org> In-Reply-To: <20200113162831.f7d69e11e9e673c40005c9b0@linux-foundation.org> User-Agent: s-nail v14.9.15 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: <linux-mm.kvack.org> |
Series |
[01/11] mm, thp: tweak reclaim/compaction effort of local-only and all-node allocations
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--- a/mm/page-writeback.c~mm-page-writebackc-avoid-potential-division-by-zero-in-wb_min_max_ratio +++ a/mm/page-writeback.c @@ -201,11 +201,11 @@ static void wb_min_max_ratio(struct bdi_ if (this_bw < tot_bw) { if (min) { min *= this_bw; - do_div(min, tot_bw); + min = div64_ul(min, tot_bw); } if (max < 100) { max *= this_bw; - do_div(max, tot_bw); + max = div64_ul(max, tot_bw); } }