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 D43BDC001DE for ; Fri, 28 Jul 2023 11:20:11 +0000 (UTC) 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 4.95) (envelope-from ) id 1qPLVy-0006Dr-E0; Fri, 28 Jul 2023 11:20:09 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1qPLVu-0006Dd-FT for linux-f2fs-devel@lists.sourceforge.net; Fri, 28 Jul 2023 11:20:05 +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:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: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=Y3gNflm29tbucRmYFhFKSUPyIFzYB2tjGffD31r6wOQ=; b=RH33/g89Z+Gz0sejws7LE6qD48 FI2X/b8U8s80u1jQBkDPNZ+/ebx0B29HGHIbpu2fkOjtUOqVqcFQExfGTanokZe9+JjpfOQTvWT6H zzPP0PgptiGczViTDuWuFi5y/WTCaevLlGPXqBtNZ1LNtGBSmBOFN50R9Tedf0smi1WM=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From: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=Y3gNflm29tbucRmYFhFKSUPyIFzYB2tjGffD31r6wOQ=; b=W0a8XrwOF/QZzBrh1dikuBfrZA tQHsfh6sL5ObliqaeBigUMdBqibPXV7xbLJrobcV4U5OqLrgb4+hJRLIO0s6NwAGHWypkO+TAmW32 qjq3IsfSGrF2kHECk2kleVltmEe7/xpB/SYhkfuAtosk7u3Y+cD6NRNHyC7rGxioYls4=; Received: from dfw.source.kernel.org ([139.178.84.217]) by sfi-mx-1.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1qPLVr-005RvT-PT for linux-f2fs-devel@lists.sourceforge.net; Fri, 28 Jul 2023 11:20:05 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 70293620F0; Fri, 28 Jul 2023 11:01:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71689C433C8; Fri, 28 Jul 2023 11:00:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690542063; bh=OHILmmeiUht8a/iNB32Wqo6p3CZSNTmmXf/wqdU8eyM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lUHncmkLN11wgaMD1KR1Gy5if09x5xh0KGyx50ZGUuC2fBx+ijTW2wECE/sOye+rG qDHl4LIc5ruyg2PAO1VZI95ZW/5j7Q0Vo/saVvtDVwvUJlMtgeQjFVYzjalCOIixt6 gEQ+u8asPVZluAxs1HoSNgHXPJA0QhMWBw4NywwMFrjIj9j61U5pX9yO+iEoVUAfbu mdakOz70WJL7rxDzg7P00Ji6kHPu+xHi68+/TquTtcuasIukOIAL/+DVn48WGku6nx 2ORenDwB3jD7HGc7jH1b/evq7YZ9RS2gsMH8Qjv3EgEZjMk8pxaawj3uGeQKo/zCuQ +lMRyzmoHCobQ== From: Christian Brauner To: Jeff Layton Date: Fri, 28 Jul 2023 13:00:37 +0200 Message-Id: <20230728-unrecht-ersichtlich-cfa7d0c703d1@brauner> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230725-mgctime-v6-0-a794c2b7abca@kernel.org> References: <20230725-mgctime-v6-0-a794c2b7abca@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1874; i=brauner@kernel.org; h=from:subject:message-id; bh=4DjYiXolHUh8qQu1N+OzbWT4vtvmgyT4c+N7Ht8XGtY=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMaQcnsy9IaFu+ZP9z1N8rj/+PH2Pm5FLY6hTmXAw+6xpv069 EIk93lHKwiDGxSArpsji0G4SLrecp2KzUaYGzBxWJpAhDFycAjARMyFGhh2xp3MqP+WJ6kre7E0z/m vxVuf2tOrqbz/KOXZnbdld4czI8C9ly15G/weVYRsOZM6bEHF4077Al0vcwkM2vDFrTz89nQsA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 X-Headers-End: 1qPLVr-005RvT-PT Subject: Re: [f2fs-dev] (subset) [PATCH v6 0/7] fs: implement multigrain timestamps 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 , Joseph Qi , "Darrick J. Wong" , Dominique Martinet , Christian Schoenebeck , Dave Chinner , David Howells , linux-mm@kvack.org, linux-mtd@lists.infradead.org, Hans de Goede , Marc Dionne , Steve French , Tyler Hicks , linux-afs@lists.infradead.org, Mike Marshall , Paulo Alcantara , linux-cifs@vger.kernel.org, Xiubo Li , Andreas Gruenbacher , Miklos Szeredi , Richard Weinberger , Mark Fasheh , Ronnie Sahlberg , Hugh Dickins , Luis Chamberlain , codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, coda@cs.cmu.edu, Iurii Zaikin , Ilya Dryomov , linux-ext4@vger.kernel.org, Namjae Jeon , devel@lists.orangefs.org, Bob Peterson , Shyam Prasad N , Kees Cook , Anthony Iliopoulos , ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, Josef Bacik , Tom Talpey , ocfs2-devel@lists.linux.dev, Yue Hu , Alexander Viro , David Sterba , Jaegeuk Kim , ceph-devel@vger.kernel.org, Eric Van Hensbergen , Gao Xiang , OGAWA Hirofumi , Jan Harkes , Christian Brauner , Sungjong Seo , Theodore Ts'o , Chris Mason , Greg Kroah-Hartman , v9fs@lists.linux.dev, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, Sergey Senozhatsky , Tejun Heo , Trond Myklebust , Jeffle Xu , Anna Schumaker , Jan Kara , linux-fsdevel@vger.kernel.org, Andreas Dilger , Andrew Morton , ntfs3@lists.linux.dev, linux-erofs@lists.ozlabs.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 On Tue, 25 Jul 2023 10:58:13 -0400, Jeff Layton wrote: > The VFS always uses coarse-grained timestamps when updating the > ctime and mtime after a change. This has the benefit of allowing > filesystems to optimize away a lot metadata updates, down to around 1 > per jiffy, even when a file is under heavy writes. > > Unfortunately, this coarseness has always been an issue when we're > exporting via NFSv3, which relies on timestamps to validate caches. A > lot of changes can happen in a jiffy, so timestamps aren't sufficient to > help the client decide to invalidate the cache. > > [...] Survives xfstests (tmpfs, ext4, overlayfs) and the fs portions of LTP. Let's keep our eyes open for any potential issues. Past suspects has been IMA interacting with overlayfs. We'll see. Picked everything minus the tmpfs-writepage patch that was contentious. --- Applied to the vfs.ctime branch of the vfs/vfs.git tree. Patches in the vfs.ctime branch should appear in linux-next soon. Please report any outstanding bugs that were missed during review in a new review to the original patch series allowing us to drop it. It's encouraged to provide Acked-bys and Reviewed-bys even though the patch has now been applied. If possible patch trailers will be updated. Note that commit hashes shown below are subject to change due to rebase, trailer updates or similar. If in doubt, please check the listed branch. tree: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git branch: vfs.ctime [1/7] fs: pass the request_mask to generic_fillattr https://git.kernel.org/vfs/vfs/c/0a6ab6dc6958 [2/7] fs: add infrastructure for multigrain timestamps https://git.kernel.org/vfs/vfs/c/d242b98ac3e9 [4/7] tmpfs: add support for multigrain timestamps https://git.kernel.org/vfs/vfs/c/1f31c58cf032 [5/7] xfs: switch to multigrain timestamps https://git.kernel.org/vfs/vfs/c/859dd91017dd [6/7] ext4: switch to multigrain timestamps https://git.kernel.org/vfs/vfs/c/093af249eab4 [7/7] btrfs: convert to multigrain timestamps https://git.kernel.org/vfs/vfs/c/b90a04d1c30c _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel