Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp1159227pxu; Fri, 27 Nov 2020 00:47:58 -0800 (PST) X-Google-Smtp-Source: ABdhPJx6fe8bMtJ2JTzFXPGZFq6e+CqU00ZZfoGqgkvrw9GoPmusQQUGXIFYr705Cs/5OuywnVyl X-Received: by 2002:a05:6402:1243:: with SMTP id l3mr6403610edw.151.1606466878165; Fri, 27 Nov 2020 00:47:58 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606466878; cv=none; d=google.com; s=arc-20160816; b=epANEsmNElEEr1UZFdIcb5NXrBJFv+ZHYnljmiF75AIx4/++xBH82xznji3WENiURf PL6KGSOWB1IM0AtXMk2W//mCizve9dbAcwJf7HAkoNAjynvtQ3/JOmC0q7hcL+VUy7DD WjicdF0QEtyWqwDKfeJIdLksNFE3Whvua2TZWWMfNE0K3QQilAttlbktfvWU1R8B0qYH Poze5Tj9GXAmsJAMEpEAxUPqaqZR3ziEZOHO7J3635q3t6QrSoFrX07vlK+an+V9rIaV oSsF44FUHC/WWWALpokzvsAzQ6YU8Or1ynuGe+pP2mW6PEss2A4h4+kdK2ewkpGdilT+ Wh/Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject; bh=UhIbSCrw71sZIsX9xR/wrxHp9Dddt7EJ1dafOUjEWWg=; b=s9loo42qOPud54igfmhfnxRhtn00SnTwWYVu2Q3chCrlk7tA3chB/a5elYa8NYhwDy 190xECbiRXGSjm5I5bn8K8jQ9IcGr0L/CZZ6gHV87cZ2S0xPyW0e0Kp7cXytALg5R4iQ JmYlWCfK3Gzezkke9AfjZ08Xsb7e8qYVDt0Uuas1M/vFvgc4qhFOEoFumLd2bcYzm7fP eS/5yhjUabUDOJweC+ntKFqxFSgxgXXIckMugtbCsiDVeJzmAmhx0+4gvgSx6k9++Vgl f+lg0rPX92Ye5U3jqdDJbpibYcm+ESyHP45Cuv7sTs1bxhBt2s4cUv/nIL75eg8j3H28 9DNw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id u19si4679768ejc.310.2020.11.27.00.47.35; Fri, 27 Nov 2020 00:47:58 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392106AbgK0BBx (ORCPT + 99 others); Thu, 26 Nov 2020 20:01:53 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:8127 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392103AbgK0BBw (ORCPT ); Thu, 26 Nov 2020 20:01:52 -0500 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4ChxCX3pvJz15SNK; Fri, 27 Nov 2020 09:01:28 +0800 (CST) Received: from [10.136.114.67] (10.136.114.67) by smtp.huawei.com (10.3.19.211) with Microsoft SMTP Server (TLS) id 14.3.487.0; Fri, 27 Nov 2020 09:01:47 +0800 Subject: Re: [f2fs-dev] [PATCH v2] f2fs: compress: add compress_inode to cache compressed blocks To: Eric Biggers CC: , , References: <20201126103709.80006-1-yuchao0@huawei.com> From: Chao Yu Message-ID: <7ecb947e-2f8c-abd7-c116-c82c474fded7@huawei.com> Date: Fri, 27 Nov 2020 09:01:47 +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: Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.114.67] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/11/27 1:55, Eric Biggers wrote: > On Thu, Nov 26, 2020 at 06:37:09PM +0800, Chao Yu wrote: >> Support to use address space of inner inode to cache compressed block, >> in order to improve cache hit ratio of random read. >> >> Signed-off-by: Chao Yu > > If the file is also encrypted, are the compressed pages that are cached still > encrypted, or are they decrypted? In current implementation, they are decrypted in cache. Thanks, > > - Eric > . >