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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 37AB7C433ED for ; Tue, 11 May 2021 05:27:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 14D6B61019 for ; Tue, 11 May 2021 05:27:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230252AbhEKF2Y (ORCPT ); Tue, 11 May 2021 01:28:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230061AbhEKF2P (ORCPT ); Tue, 11 May 2021 01:28:15 -0400 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60FD5C061761 for ; Mon, 10 May 2021 22:26:33 -0700 (PDT) Received: by mail-pl1-x636.google.com with SMTP id n16so10261223plf.7 for ; Mon, 10 May 2021 22:26:33 -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=ePbl2StuMgS3kMOhK/vbMkJmhxQ3BQ9xukEhDTTEmg0=; b=MZqW3y4CsBnOhRaswOVhIkQroLtAvqMreUHmyI99x0hDMZ4ylsD5+Tt1xM3bgx30HM OZhavu0OEPfVQ7ZkYCG9OcgcFaYewNW8Q07fESDByDYG7XscJeHjnLJdo42fTypkYx3E kxPjMxA8B8PnALl21haxcLxBElb/Ls0ERwemlGjB2F77CZ/SphEQrs1WxIjW7d0in8no AagxUSSx0cKkxyoqWnODEMfKHa3foR+lQhMCiY3WrRn2WteyKDUywn5zC4QqS3d6qgKo nJ+3PFHOfA05gEdOXu0ncI/MZaEsNidzFef5huj8I2gu9UoZUga4PIKsJYz5hTGg9PN+ Z9mg== 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=ePbl2StuMgS3kMOhK/vbMkJmhxQ3BQ9xukEhDTTEmg0=; b=EE74lQT+qc5VOOCTYdDgSEpPM2xVngo0sl/eLdc5t2weZUfpBFq1tKnIqF/aAaseMM Rc/ozkjzVUT6i72x6lLj7lKZv64qMtFXQxHGJauXrTwhHKly4SivHFLOHEeowGujETg+ 4brfmfy9gyj1t5uaMum6m+lar1Cv/4wYcGEu043+IgGfPI+UyPvWXoDbLDzJMmps+MW0 nZBkDlaw37qm1nS7lkdYE4SMYe9SqULzC6D8xXm/4Ul5AR9nan6wc0z9jsKXaA43Bhr/ EK7GfpTwywctB/64a5av+DYNbzXi4R21HVaqTec8FWmHK0nXBiV1dXRHgQyLyUehXizt 1ptQ== X-Gm-Message-State: AOAM532fCDP1PcdqSR0V5KKPbaSaqBPrxXIUUWWxQWveVtJIzUecqy0L IFmP4Il8HQiR2hFtFrGHoyI= X-Google-Smtp-Source: ABdhPJx8aK2TSrsgp0BBw53roHeqSzu31iBo/BquKPW/bOlvxYQq6d+vNg9WjTDhREj3HbdJDaQo4w== X-Received: by 2002:a17:90a:c203:: with SMTP id e3mr31012066pjt.168.1620710792997; Mon, 10 May 2021 22:26:32 -0700 (PDT) Received: from wuchi.mioffice.cn ([209.9.72.213]) by smtp.gmail.com with ESMTPSA id e23sm12506423pfd.104.2021.05.10.22.26.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 May 2021 22:26:32 -0700 (PDT) From: Chi Wu To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, tj@kernel.org, mszeredi@redhat.com, sedat.dilek@gmail.com, axboe@fb.com, jack@suse.cz, hcochran@kernelspring.com, Chi Wu Subject: [PATCH] mm/page-writeback: Update the comment of Dirty position control Date: Tue, 11 May 2021 13:26:26 +0800 Message-Id: <20210511052626.19005-1-wuchi.zero@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As the value of pos_ratio_polynom() clamp between 0 and 2LL << RATELIMIT_CALC_SHIFT, the global control line should be consistent with it. Signed-off-by: Chi Wu --- mm/page-writeback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 0062d5c57d41..e9a4f6cf12bb 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -845,7 +845,7 @@ static long long pos_ratio_polynom(unsigned long setpoint, * ^ pos_ratio * | * | |<===== global dirty control scope ======>| - * 2.0 .............* + * 2.0 * * * * * * * * | .* * | . * * | . * -- 2.17.1