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=-10.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 5BC15C4338F for ; Tue, 3 Aug 2021 08:31:36 +0000 (UTC) Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 203ED60187; Tue, 3 Aug 2021 08:31:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 203ED60187 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.92.3) (envelope-from ) id 1mAppm-00043h-Ka; Tue, 03 Aug 2021 08:31:34 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.3) (envelope-from ) id 1mAppl-00043a-DY for linux-f2fs-devel@lists.sourceforge.net; Tue, 03 Aug 2021 08:31:33 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=OHWun8Dj1CcwtIVWkrW+3HjY5MJeXrkLiGaAqMp3wpI=; b=UWpAYQFJvpwMpwpmMamRpt98Iy xtPwR/MWSuLOBG53c82wSJ5rXAYfvrHKdDO1u6NT3LKGo9DeM9Sp0RHhHTa6pPrYX+45Nmii1LX3R yuwEmefJY4iCtS1/4DDfKNHMtir6ZPL1bruxNxfuZ5ST1sOw6w27RUNUWdo2xRYXuY/c=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=OHWun8Dj1CcwtIVWkrW+3HjY5MJeXrkLiGaAqMp3wpI=; b=mkMRrIjh5LtEHgx7NSa6MYBn3Y kAwTp7BA9nv3yBxlFPYbnJD3xj64DQPjfzO3uaMRgfMvV/Etp45PFsQWY6BKEjfsvicAfu3xcdmCC GMUwx9lXPEE/m69jyFjKgKLN0XXNgKWU2MRo/NnNAq1BKx6PK/e27CJIFHFYCxiIrp9U=; Received: from mail.kernel.org ([198.145.29.99]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.3) id 1mAppj-0001UN-3h for linux-f2fs-devel@lists.sourceforge.net; Tue, 03 Aug 2021 08:31:33 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id A916D60249; Tue, 3 Aug 2021 08:31:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627979484; bh=kaFiBCMyltN5FpAyAo2YUnCHUvxKizCTit1xdiH0r2s=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=AZoz65hjBICpIy2wfNjGs7LizvOEARyYte6SP16y2QrehZtzH3KKtiw2MxojoO4fr ew9xBp/e8sTeSiVtvsRCtaNH8NzW2raH8lslTUU/nWBT/ardQQQoCHJQ8rAgt1yuou rxpNxJh4k6NrJT9kk5PVY60Fm36Gnc4QFk1bM+tZwGLSSvFfvJek1/FGbEjcAY9phZ 2cwnYd9rWbbV2TTGVJP2QrV51C1koS1FV3MhsRMS/U3vCvENty0aoNtwIXuZA9fkVZ 0fhbkLfspeE9zAxTyfEhQQIWtKh6Rg6r66oXzxZSt9GrCcg9CGnSXdQ3E5BJtPoTIM UkcR5if4FGv2g== To: Daeho Jeong , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, kernel-team@android.com References: <20210803042245.2297259-1-daeho43@gmail.com> From: Chao Yu Message-ID: Date: Tue, 3 Aug 2021 16:31:22 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210803042245.2297259-1-daeho43@gmail.com> Content-Language: en-US X-Headers-End: 1mAppj-0001UN-3h Subject: Re: [f2fs-dev] [PATCH v3] f2fs: add sysfs node to control ra_pages for fadvise seq file 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: Jaegeuk Kim , Daeho Jeong Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2021/8/3 12:22, Daeho Jeong wrote: > From: Daeho Jeong > > fadvise() allows the user to expand the readahead window to double with > POSIX_FADV_SEQUENTIAL, now. But, in some use cases, it is not that > sufficient and we need to meet the need in a restricted way. We can > control the multiplier value of bdi device readahead between 2 (default) > and 256 for POSIX_FADV_SEQUENTIAL advise option. > > Signed-off-by: Daeho Jeong I guess you can add below tag directly in v3. :) Reviewed-by: Chao Yu Thanks, _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel