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AJvYcCXVVFaU0h1y16KTqEyBQ2Od0TzdJdgUCC3wSIdCR9i8MYLRAsG4TcoDWKJFGPnEEIeddsMLXVKBug==@kvack.org X-Gm-Message-State: AOJu0YzrDgBNjArSPVnDtdeFgayqEbnwr0XsJk0wd+EZ4ZQtUV9aq57F Rn0RlrSNUBkSrAxi2eRd5CjczBZ09WFFGfs6KJQHpl8l2mDaVRbYqQ6gYPf/VpWRGrDnLhIdZ8W s X-Google-Smtp-Source: AGHT+IEaZ/prco7C4oF5lCWqhRZLR0ygJ+Go+pa+KiOBjSGAm0bDYgzb9+GyjYftuCC7qtA8vT67yw== X-Received: by 2002:a05:6a20:c791:b0:1d2:e94d:45a6 with SMTP id adf61e73a8af0-1d8a3bfec45mr5025125637.14.1728484899516; Wed, 09 Oct 2024 07:41:39 -0700 (PDT) Received: from localhost.localdomain ([143.92.64.20]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71df0ccdb64sm7852764b3a.48.2024.10.09.07.41.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Oct 2024 07:41:39 -0700 (PDT) From: Tang Yizhou X-Google-Original-From: Tang Yizhou To: jack@suse.cz, hch@infradead.org, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Tang Yizhou Subject: [PATCH v3 1/2] mm/page-writeback.c: Update comment for BANDWIDTH_INTERVAL Date: Wed, 9 Oct 2024 23:17:27 +0800 Message-Id: <20241009151728.300477-2-yizhou.tang@shopee.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241009151728.300477-1-yizhou.tang@shopee.com> References: <20241009151728.300477-1-yizhou.tang@shopee.com> MIME-Version: 1.0 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: BA6C4A0017 X-Stat-Signature: 71mqcm13j1ib4dhq4zdotkfhc8rwehcn X-Rspam-User: X-HE-Tag: 1728484900-275313 X-HE-Meta: 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 hIWISKEU ZMYDG2hyUAyLnASzER32V0ljLQncEVlKKNrLASRMOWRVU4nOyk2nunifG+hcEx9HfDo/O7199ctsO2tci30XOP0RVjWjux5mS0aO41GOkmWNaVg/RTOUkNcKN6QS0VTBs8JK0m1zHOA7BJ42wHG9chzRiUx2Pf8uuszIj787po7es4jCftAbIU/7TxosRCoemgvf9n58XF2+xQOymk3keYofN+qi9LtGY+ZqmpzyhXlKAdrVQXzhp6F7nm5hGsWMsSV0ECKmV6uXq1baq9YPfzrSFDdldhMZMrINFsaO4c+ZG4G8+jlnCwJBvBoqLel6057qdAKl2sSnM/sa7t9weWizPQkABwt7r5nUB61DI/bV3WYR19OP3eQKocfLvyaueAJGr X-Bogosity: Ham, tests=bogofilter, spamicity=0.007738, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Tang Yizhou The name of the BANDWIDTH_INTERVAL macro is misleading, as it is not only used in the bandwidth update functions wb_update_bandwidth() and __wb_update_bandwidth(), but also in the dirty limit update function domain_update_dirty_limit(). Currently, we haven't found an ideal name, so update the comment only. Signed-off-by: Tang Yizhou Reviewed-by: Jan Kara --- 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 fcd4c1439cb9..c7c6b58a8461 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -54,7 +54,7 @@ #define DIRTY_POLL_THRESH (128 >> (PAGE_SHIFT - 10)) /* - * Estimate write bandwidth at 200ms intervals. + * Estimate write bandwidth or update dirty limit at 200ms intervals. */ #define BANDWIDTH_INTERVAL max(HZ/5, 1) From patchwork Wed Oct 9 15:17:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tang Yizhou X-Patchwork-Id: 13828553 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27519CEDDA4 for ; Wed, 9 Oct 2024 14:41:49 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 2A4D68D0003; 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Wed, 09 Oct 2024 07:41:42 -0700 (PDT) Received: from localhost.localdomain ([143.92.64.20]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71df0ccdb64sm7852764b3a.48.2024.10.09.07.41.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Oct 2024 07:41:41 -0700 (PDT) From: Tang Yizhou X-Google-Original-From: Tang Yizhou To: jack@suse.cz, hch@infradead.org, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Tang Yizhou Subject: [PATCH v3 2/2] mm/page-writeback.c: Fix comment of wb_domain_writeout_add() Date: Wed, 9 Oct 2024 23:17:28 +0800 Message-Id: <20241009151728.300477-3-yizhou.tang@shopee.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241009151728.300477-1-yizhou.tang@shopee.com> References: <20241009151728.300477-1-yizhou.tang@shopee.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: AA6C5C0018 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: cxraotd8k89qhbomtyyjj3o3arsticjh X-HE-Tag: 1728484903-279973 X-HE-Meta: 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 LMPU8M3I JGvzIzTsaplOt3gSGjcdQTlEY++0LBYuCalqDCRI75zjhxwS2WPOnoG/VL29c7V6BOtX74wieEioyvuXuFs7g7kmw2TCes5Z0NpjFTMe2PIb6yreZbppUFTSFzmjWlYemcIRL3FAuOPwkTBLMM7OxBOZGwyNVfJf0IyfGsSFoFcDdF0RCbX2KDvFYAeZJOv/c36sQMEdHcZ6jAM8CqGvKCS6o1UXT50eSW4zgTfFlOl0+CEXENJMxHvGxK/P08hI/QfKzX49dLMVr9VjAU7mWJh1G7d02oZ8arnnAB9Kai1eSH3QdnNqGmiOcqk4VtruxCYK22zZwG2pTHkjLVGgzNm/lTWX6+lsNHhBAvMaqHGkDiC8wRzREO4efPKRiYPPQjqut4aIzH6eFPmslSIXk2q/ZR1Itkpu4QofIVILC8qi6hVMFvhqb5lZacxL7y6GYycqVv9ZbtpAamss= X-Bogosity: Ham, tests=bogofilter, spamicity=0.003919, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Tang Yizhou __bdi_writeout_inc() has undergone multiple renamings, but the comment within the function body have not been updated accordingly. Update it to reflect the latest wb_domain_writeout_add(). Signed-off-by: Tang Yizhou Reviewed-by: Jan Kara --- 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 c7c6b58a8461..72a5d8836425 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -586,7 +586,7 @@ static void wb_domain_writeout_add(struct wb_domain *dom, /* First event after period switching was turned off? */ if (unlikely(!dom->period_time)) { /* - * We can race with other __bdi_writeout_inc calls here but + * We can race with other wb_domain_writeout_add calls here but * it does not cause any harm since the resulting time when * timer will fire and what is in writeout_period_time will be * roughly the same.