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[5.134.221.218]) by smtp.gmail.com with ESMTPSA id t9sm11127171lfl.51.2019.12.25.01.58.48 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 25 Dec 2019 01:58:48 -0800 (PST) Message-ID: <1cc2d2a093ebb15a1fc6eb96d683e918a8d5a7d4.camel@dubeyko.com> From: Vyacheslav Dubeyko To: Geert Uytterhoeven , Chao Yu Date: Wed, 25 Dec 2019 12:58:47 +0300 In-Reply-To: References: <20191223040020.109570-1-yuchao0@huawei.com> X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.1 Mime-Version: 1.0 X-Headers-End: 1ik3RP-00F1ED-Qi Subject: Re: [f2fs-dev] [PATCH] f2fs: introduce DEFAULT_IO_TIMEOUT_JIFFIES X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux FS Devel , Jaegeuk Kim , Linux Kernel Mailing List , linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On Mon, 2019-12-23 at 09:41 +0100, Geert Uytterhoeven wrote: > Hi, > > CC linux-fsdevel > > On Mon, Dec 23, 2019 at 5:01 AM Chao Yu wrote: > > As Geert Uytterhoeven reported: > > > > for parameter HZ/50 in congestion_wait(BLK_RW_ASYNC, HZ/50); > > > > On some platforms, HZ can be less than 50, then unexpected 0 > > timeout > > jiffies will be set in congestion_wait(). > > It looks like that HZ could have various value on diferent platforms. So, why does it need to divide HZ on 50? Does it really necessary? Could it be used HZ only without the division operation? Thanks, Viacheslav Dubeyko. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel