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 AC580C433B4 for ; Tue, 11 May 2021 10:36:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 767D06192C for ; Tue, 11 May 2021 10:36:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231341AbhEKKhU (ORCPT ); Tue, 11 May 2021 06:37:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52252 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230501AbhEKKhS (ORCPT ); Tue, 11 May 2021 06:37:18 -0400 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1AE3FC061574 for ; Tue, 11 May 2021 03:36:12 -0700 (PDT) Received: by mail-pg1-x533.google.com with SMTP id m190so15501810pga.2 for ; Tue, 11 May 2021 03:36:12 -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:in-reply-to:references; bh=20fPsPA+9WTsD5kDBLLT9Sw3U7rjYbUdTtKCGI1Jfrc=; b=oVsOUcDmTLpDInKQDoadILZs05yBkCofvmJC0No4oK9c3x5SiipZxCeRLQ4T9LPmor cz4qvGaRA1aVn0rwewf2R8vnmioLAeehmmwiXrL5fkU0qphehMgWwJpOUjhih60fEr1z jx5FzqhjVGX8lQA872jQRTqQbJfXsuEo6eK+Be7McJ1fLKuHJKzAcdVpRWWx/8KTSGzx YmN9xfkIWvFYGusKmmaWVl86K5rr4DmnIKdLgoLTmxAO0GVGyU+zt4zq/vhJTludAe1U v0+0ADwvfKzjZv+yuByv678Gg+QNPSsK5swGqw3iBgbCK3riw2gIakb5SZzVsM6NNIct 88Xw== 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:in-reply-to :references; bh=20fPsPA+9WTsD5kDBLLT9Sw3U7rjYbUdTtKCGI1Jfrc=; b=h4fbXRswq/gZwvGt1iTK/Mgxg8sVij9WN3hdo9cyN3JbFM1rb1KnJWGMxtHg9JtY/I 07FSeBTl0JsXZgCS+2hJbeTxwL3QZrdoaWz+B1ziHw0av2MI5DkjUVIRJlmZsek8IPti 0Moy9ySPW5qRoPqZiENJ6dmqkQPY947k5YehhXt7vIU5twppp550wMjAEvsbLPpPROG2 E/cjYtljL7BaeTv0JxpHICmoBcPCrG0nMO5IUWIsGGl26tWeMmkdgRU3SWn39bv9796Z vfsnV2bTseKrXbFKNaGZzylra3tN4b2zuemPAJ12kjsfCYA95nqnYYFUOJBuiIzvjHDb q5kw== X-Gm-Message-State: AOAM532TyTllpH0dVzT8KinFvCzThbuVmAnf5cdEmQweQe2wSal30COU nK6zP8npOLKH6PxLHLG/PXk= X-Google-Smtp-Source: ABdhPJyYxgZrkaDVwaUh36J2Xb9WjQDvSyGVixH3JxLQSGI6GUfG+XJHq7ds1b7SyEc1izpg3hUSDw== X-Received: by 2002:a63:6f01:: with SMTP id k1mr11212537pgc.59.1620729371560; Tue, 11 May 2021 03:36:11 -0700 (PDT) Received: from wuchi.mioffice.cn ([209.9.72.213]) by smtp.gmail.com with ESMTPSA id f24sm13947394pfk.45.2021.05.11.03.36.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 May 2021 03:36:11 -0700 (PDT) From: Chi Wu To: jack@suse.cz Cc: akpm@linux-foundation.org, axboe@fb.com, hcochran@kernelspring.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mszeredi@redhat.com, sedat.dilek@gmail.com, tj@kernel.org, Chi Wu Subject: [PATCH v2] mm/page-writeback: Update the comment of Dirty position control Date: Tue, 11 May 2021 18:36:06 +0800 Message-Id: <20210511103606.3732-1-wuchi.zero@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210511090632.GH24154@quack2.suse.cz> References: <20210511090632.GH24154@quack2.suse.cz> 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..3882405dc051 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