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=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 A6CABC47096 for ; Sun, 6 Jun 2021 13:53:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7A6A36140F for ; Sun, 6 Jun 2021 13:53:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230091AbhFFNzY (ORCPT ); Sun, 6 Jun 2021 09:55:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:36176 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230003AbhFFNzW (ORCPT ); Sun, 6 Jun 2021 09:55:22 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0DDAA6120F; Sun, 6 Jun 2021 13:53:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622987612; bh=T9Mid5vJotYKc1BgooDYJRNtn/k2VlQX+UetnopSvjc=; h=Subject:To:References:From:Date:In-Reply-To:From; b=K0EMoEIPoiytEnK7B4ovvewslqmX+eB63WcCV0ocRdygeYCTmCvmKdK5K6UAWBZki m+vFDzkqKBqVgl6lN9Pyb+6f6vyhGO8TpXVraOur5v25UrBkjijp4ePXhcA1M//c3e wihHXKIbmjNMD0r/FowSCotYo8W+m69t/q/WdmE0VKtFPIbDqgYI7XoFOyWgYDm8Uw z4EolGrMokx9eEdIy3lQ2TrQpVfxp31h8yed1xgr2JMyJp+W7R3R8pUa9k+JYC1DZT QugWbQN3lRYYtVKrAEP03HIVbCDiltfVWh2OLAYXtquDB0u972uhKgn4VMzNpYkwGa n2mL+wkxvZ40w== Subject: Re: [f2fs-dev] [PATCH 2/2] f2fs: introduce FI_COMPRESS_RELEASED instead of using IMMUTABLE bit To: Jaegeuk Kim , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net References: <20210525204955.2512409-1-jaegeuk@kernel.org> <20210525204955.2512409-2-jaegeuk@kernel.org> From: Chao Yu Message-ID: <95b5669f-a521-5865-2089-320e2a2493de@kernel.org> Date: Sun, 6 Jun 2021 21:53:29 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210525204955.2512409-2-jaegeuk@kernel.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/5/26 4:49, Jaegeuk Kim wrote: > Once we release compressed blocks, we used to set IMMUTABLE bit. But it turned > out it disallows every fs operations which we don't need for compression. > > Let's just prevent writing data only. > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu BTW, we need to expose .i_inline field to userspace since there is no way to check status of inode whether it has released blocks? Thanks,