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=-10.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 F3998C433E0 for ; Fri, 15 Jan 2021 09:28:49 +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 9E99023403; Fri, 15 Jan 2021 09:28:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E99023403 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-f2fs-devel-bounces@lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1l0LPU-0004Yf-Vd; Fri, 15 Jan 2021 09:28:48 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l0LPT-0004YU-U8 for linux-f2fs-devel@lists.sourceforge.net; Fri, 15 Jan 2021 09:28:47 +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:To:Subject:Sender:Reply-To:Cc: 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=9MLbP/+DUMInkvTN0k7QqoFgd2HpByfsDN9x5EmIZWA=; b=LEBQpaGkedOxL/mhIEAXMidoYa jec55pdd7SAaAxwDFFpJ3UM4oaxeqrv8hRGuDMcioeWCxbSEmYcGvjtvN91oQBUmSoXV7+rBiiJkv Y+jKYzHrSqwt9+bDQ1imGhk0Qdd1tHfbNDHmCJjUkE+5qLagcObtOSCMy4w0TA92r01Q=; 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:To:Subject:Sender:Reply-To:Cc: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=9MLbP/+DUMInkvTN0k7QqoFgd2HpByfsDN9x5EmIZWA=; b=cV6E4MwJC8i4gFR+bqrYfL6RBE 4x6KVVnzEHK7l2UGgX7Lqj8VH+4Iddtc1haG9U/TRMWWIULuhDyLmLNI1ojyawq1K1YqSJE2vqIrl 3jBFjhxuebc4MtvifrczoewT2XzMFSqZ0l5W4qfH0RfTWivGzLtzI9bevZjFioQyEhQk=; Received: from szxga07-in.huawei.com ([45.249.212.35]) by sfi-mx-1.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.2) id 1l0LPM-00FS2L-49 for linux-f2fs-devel@lists.sourceforge.net; Fri, 15 Jan 2021 09:28:47 +0000 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4DHG6p0sDqz7Vbp; Fri, 15 Jan 2021 17:27:30 +0800 (CST) Received: from [10.136.110.154] (10.136.110.154) by smtp.huawei.com (10.3.19.212) with Microsoft SMTP Server (TLS) id 14.3.498.0; Fri, 15 Jan 2021 17:28:29 +0800 To: "Matthew Wilcox (Oracle)" , Jaegeuk Kim , , References: <20210114190051.1893991-1-willy@infradead.org> From: Chao Yu Message-ID: Date: Fri, 15 Jan 2021 17:28:28 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20210114190051.1893991-1-willy@infradead.org> Content-Language: en-US X-Originating-IP: [10.136.110.154] X-CFilter-Loop: Reflected X-Headers-End: 1l0LPM-00FS2L-49 Subject: Re: [f2fs-dev] [PATCH] f2fs: Remove readahead collision detection 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: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2021/1/15 3:00, Matthew Wilcox (Oracle) wrote: > With the new ->readahead operation, locked pages are added to the page > cache, preventing two threads from racing with each other to read the > same chunk of file, so this is dead code. > > Signed-off-by: Matthew Wilcox (Oracle) 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