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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D6AF0C04FE0 for ; Wed, 9 Aug 2023 13:36:46 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1qTjMh-000494-MW; Wed, 09 Aug 2023 13:36:44 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1qTjMg-00048x-QX for linux-f2fs-devel@lists.sourceforge.net; Wed, 09 Aug 2023 13:36:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Type:MIME-Version:Message-ID:Date: References:In-Reply-To:Subject:Cc:To:From:Sender:Reply-To: Content-Transfer-Encoding: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=KXdgc6EQIVEa9D+5j3JIR4aqG3RqDbmd/d6hxGdzYFY=; b=Hp6gsa3f98JdO17QcxmcZCGF3C xHnNI/LLV3GCLbNWYrZ6mbGf8kaI2xfI3W8N3hmB+FsAzqaFaUxKiCdOHFhPhOWtrkSjkNo9vIEqf cLZG9u22o69r+hhI++SJxHaUCLrC1DoBP7aDQdw3Ozmwrd1TOKzylNQd3aD0GBNRZVyA=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject: Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: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=KXdgc6EQIVEa9D+5j3JIR4aqG3RqDbmd/d6hxGdzYFY=; b=hDwibsJQOKXjAVlRM9e1NaF0FL BWBlPEq2raidxNZQSbq/aCuabnitWT7Zmy33qrlZfdFsO3oXYTE2IYqKxrDbwl3OupyZ0ccl0ze6C bHIsN8YLAN3yoYF9FdaxErgMBOvTmgPi8F5kttrQkS8crnl47ExPZxRh7/05qScY2Jxg=; Received: from mail.parknet.co.jp ([210.171.160.6]) by sfi-mx-1.v28.lw.sourceforge.com with esmtp (Exim 4.95) id 1qTjMg-000ZTh-3s for linux-f2fs-devel@lists.sourceforge.net; Wed, 09 Aug 2023 13:36:43 +0000 Received: from ibmpc.myhome.or.jp (server.parknet.ne.jp [210.171.168.39]) by mail.parknet.co.jp (Postfix) with ESMTPSA id 6E7A32055FA2; Wed, 9 Aug 2023 22:36:36 +0900 (JST) Received: from devron.myhome.or.jp (foobar@devron.myhome.or.jp [192.168.0.3]) by ibmpc.myhome.or.jp (8.17.2/8.17.2/Debian-1) with ESMTPS id 379DaZlY216308 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 9 Aug 2023 22:36:36 +0900 Received: from devron.myhome.or.jp (foobar@localhost [127.0.0.1]) by devron.myhome.or.jp (8.17.2/8.17.2/Debian-1) with ESMTPS id 379DaZkg190033 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 9 Aug 2023 22:36:35 +0900 Received: (from hirofumi@localhost) by devron.myhome.or.jp (8.17.2/8.17.2/Submit) id 379DaTmi190025; Wed, 9 Aug 2023 22:36:29 +0900 From: OGAWA Hirofumi To: Jeff Layton In-Reply-To: <52bead1d6a33fec89944b96e2ec20d1ea8747a9a.camel@kernel.org> (Jeff Layton's message of "Wed, 09 Aug 2023 06:10:53 -0400") References: <20230807-mgctime-v7-0-d1dec143a704@kernel.org> <20230807-mgctime-v7-5-d1dec143a704@kernel.org> <87msz08vc7.fsf@mail.parknet.co.jp> <52bead1d6a33fec89944b96e2ec20d1ea8747a9a.camel@kernel.org> Date: Wed, 09 Aug 2023 22:36:29 +0900 Message-ID: <878rak8hia.fsf@mail.parknet.co.jp> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 X-Headers-End: 1qTjMg-000ZTh-3s Subject: Re: [f2fs-dev] [PATCH v7 05/13] fat: make fat_update_time get its own timestamp 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: Latchesar Ionkov , Martin Brandenburg , Konstantin Komarov , "Darrick J. Wong" , Dominique Martinet , Christian Schoenebeck , ecryptfs@vger.kernel.org, Yue Hu , David Howells , Chris Mason , Andreas Dilger , Hans de Goede , Marc Dionne , linux-xfs@vger.kernel.org, linux-afs@lists.infradead.org, linux-mtd@lists.infradead.org, Mike Marshall , Paulo Alcantara , linux-cifs@vger.kernel.org, Eric Van Hensbergen , Andreas Gruenbacher , Miklos Szeredi , Richard Weinberger , Mark Fasheh , linux-unionfs@vger.kernel.org, Hugh Dickins , Benjamin Coddington , Tyler Hicks , cluster-devel@redhat.com, coda@cs.cmu.edu, linux-mm@kvack.org, Ilya Dryomov , Iurii Zaikin , Namjae Jeon , Trond Myklebust , codalist@telemann.coda.cs.cmu.edu, Shyam Prasad N , Amir Goldstein , Kees Cook , ocfs2-devel@lists.linux.dev, Josef Bacik , Tom Talpey , Tejun Heo , Alexander Viro , Ronnie Sahlberg , David Sterba , Jaegeuk Kim , ceph-devel@vger.kernel.org, Xiubo Li , Gao Xiang , Jan Harkes , Christian Brauner , linux-ext4@vger.kernel.org, Theodore Ts'o , Joseph Qi , Greg Kroah-Hartman , v9fs@lists.linux.dev, ntfs3@lists.linux.dev, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Steve French , Sergey Senozhatsky , Luis Chamberlain , Jeffle Xu , devel@lists.orangefs.org, Anna Schumaker , Jan Kara , Bob Peterson , linux-fsdevel@vger.kernel.org, Andrew Morton , Sungjong Seo , linux-erofs@lists.ozlabs.org, linux-nfs@vger.kernel.org, linux-btrfs@vger.kernel.org, Joel Becker Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Jeff Layton writes: > On Wed, 2023-08-09 at 17:37 +0900, OGAWA Hirofumi wrote: >> Jeff Layton writes: >> >> > Also, it may be that things have changed by the time we get to calling >> > fat_update_time after checking inode_needs_update_time. Ensure that we >> > attempt the i_version bump if any of the S_* flags besides S_ATIME are >> > set. >> >> I'm not sure what it meaning though, this is from >> generic_update_time(). Are you going to change generic_update_time() >> too? If so, it doesn't break lazytime feature? >> > > Yes. generic_update_time is also being changed in a similar fashion. > This shouldn't break the lazytime feature: lazytime is all about how and > when timestamps get written to disk. This work is all about which > clocksource the timestamps originally come from. I can only find the following update in this series, another series updates generic_update_time()? The patch updates only if S_VERSION is set. Your fat patch sets I_DIRTY_SYNC always instead of I_DIRTY_TIME. When I last time checked lazytime, and it was depending on I_DIRTY_TIME. Are you sure it doesn't break lazytime? I'm totally confusing, and really similar with generic_update_time()? Thanks. +/** + * generic_update_time - update the timestamps on the inode + * @inode: inode to be updated + * @flags: S_* flags that needed to be updated + * + * The update_time function is called when an inode's timestamps need to be + * updated for a read or write operation. In the case where any of S_MTIME, S_CTIME, + * or S_VERSION need to be updated we attempt to update all three of them. S_ATIME + * updates can be handled done independently of the rest. + * + * Returns a S_* mask indicating which fields were updated. + */ +int generic_update_time(struct inode *inode, int flags) +{ + int updated = inode_update_timestamps(inode, flags); + int dirty_flags = 0; + if (updated & (S_ATIME|S_MTIME|S_CTIME)) + dirty_flags = inode->i_sb->s_flags & SB_LAZYTIME ? I_DIRTY_TIME : I_DIRTY_SYNC; + if (updated & S_VERSION) + dirty_flags |= I_DIRTY_SYNC; __mark_inode_dirty(inode, dirty_flags); - return 0; + return updated; } >> > - if ((flags & S_VERSION) && inode_maybe_inc_iversion(inode, false)) >> > + if ((flags & (S_VERSION|S_CTIME|S_MTIME)) && inode_maybe_inc_iversion(inode, false)) >> > dirty_flags |= I_DIRTY_SYNC; >> > >> > __mark_inode_dirty(inode, dirty_flags); >> -- OGAWA Hirofumi _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel