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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99E7BCE79CE for ; Wed, 20 Sep 2023 12:26:35 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0A8656B014F; Wed, 20 Sep 2023 08:26:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0312A6B0150; Wed, 20 Sep 2023 08:26:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DED5A6B0151; Wed, 20 Sep 2023 08:26:34 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id C99776B014F for ; Wed, 20 Sep 2023 08:26:34 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 99230A06DE for ; Wed, 20 Sep 2023 12:26:34 +0000 (UTC) X-FDA: 81256899108.09.477471B Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf12.hostedemail.com (Postfix) with ESMTP id E329A40015 for ; Wed, 20 Sep 2023 12:26:32 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=RVJi3YJ9; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf12.hostedemail.com: domain of jlayton@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=jlayton@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1695212793; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=j2Ujv7mECWiiyepGgcf7cYeq2b5uXg4j5WSf8WCGJGw=; b=Q+AxVdUIc7W7YK+QHEGb16pthpZ9g76zHtYOWyaKQ7+loPXNovZV1QRzYI4Wqt3o6Q7B1y G5L0PJZRAnSPrOMAGTOiyvKQBmx3kZcWemUIGoyu5ESJEovIH1YL1Mtryxl1RpZp2lvcAC WdlErKtQBPdKuGbRQlkdUMuO89Qwd+o= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=RVJi3YJ9; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf12.hostedemail.com: domain of jlayton@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=jlayton@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1695212793; a=rsa-sha256; cv=none; b=UCJbqun5th5YoJ5GBic3jO0HJdQJYJIw/eae8p5wfSyibN7s3E4DIrTwgo80qzaKOCcWnd rg3LSdH+Ub0iQdj+eZxCt47RQBpF4ChyojyvrabK7K0fhqrdZsMebS+0TJEXL3iT8ivx3W eb5UIvoAzH8ooMUuHcNa7HrOE6EmPhU= 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 BF45061BBB; Wed, 20 Sep 2023 12:26:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B116FC433C7; Wed, 20 Sep 2023 12:26:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695212791; bh=j2Ujv7mECWiiyepGgcf7cYeq2b5uXg4j5WSf8WCGJGw=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=RVJi3YJ93nkGdme97CPVZyKVsXRompHSEpqtPgjg5IXZpeeoDKXr4+/N/2g8SazNs PTMXfjbLyVcmcMlPWK9gkCUtPoVL08D+8T05skUSNXNcqojDYuKIJ3D4iWsQcQ6/p1 nd9CYh7ZGv0mecri9lQNu6T+URWU12zhbzr3m2+MF994QE4TOTY30oj8CIGcHrjPaV p5eQQYHK9EbLKwSLlRiXFpn887zwMtzAwEYy9X3/fczshcnuzqpR2PcPdvzsvp+Nwj nUXi4yVYSv9CkblAa+vVWETbd39smzugtkni9XuKQCezFNMIk6+brCA9QPeH9rNHQP PWQ6YJSMI9mJw== Message-ID: <08b4e3275bad93ed99ea2892bd1950ff401ab912.camel@kernel.org> Subject: Re: [PATCH v7 12/13] ext4: switch to multigrain timestamps From: Jeff Layton To: Christian Brauner , Jan Kara Cc: Bruno Haible , Xi Ruoyao , bug-gnulib@gnu.org, Alexander Viro , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Howells , Marc Dionne , Chris Mason , Josef Bacik , David Sterba , Xiubo Li , Ilya Dryomov , Jan Harkes , coda@cs.cmu.edu, Tyler Hicks , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Namjae Jeon , Sungjong Seo , Jan Kara , Theodore Ts'o , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , Miklos Szeredi , Bo b Peterson , Andreas Gruenbacher , Greg Kroah-Hartman , Tejun Heo , Trond Myklebust , Anna Schumaker , Konstantin Komarov , Mark Fasheh , Joel Becker , Joseph Qi , Mike Marshall , Martin Brandenburg , Luis Chamberlain , Kees Cook , Iurii Zaikin , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Sergey Senozhatsky , Richard Weinberger , Hans de Goede , Hugh Dickins , Andrew Morton , Amir Goldstein , "Darrick J. Wong" , Benjamin Coddington , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, ecryptfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-nfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-mtd@lists.infradead.org, linux-mm@kvack.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org Date: Wed, 20 Sep 2023 08:26:23 -0400 In-Reply-To: <20230920-kahlkopf-tonlage-ab6ca571465e@brauner> References: <20230807-mgctime-v7-0-d1dec143a704@kernel.org> <20230919110457.7fnmzo4nqsi43yqq@quack3> <1f29102c09c60661758c5376018eac43f774c462.camel@kernel.org> <4511209.uG2h0Jr0uP@nimes> <08b5c6fd3b08b87fa564bb562d89381dd4e05b6a.camel@kernel.org> <20230920-leerung-krokodil-52ec6cb44707@brauner> <20230920101731.ym6pahcvkl57guto@quack3> <317d84b1b909b6c6519a2406fcb302ce22dafa41.camel@kernel.org> <20230920-raser-teehaus-029cafd5a6e4@brauner> <35c28758a9cc28a276a6b4b4ae8a420a1444e711.camel@kernel.org> <20230920-kahlkopf-tonlage-ab6ca571465e@brauner> Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.48.4 (3.48.4-1.fc38) MIME-Version: 1.0 X-Rspam-User: X-Stat-Signature: qjm4wqkqk7ayz1wh3r1a73atgeuh15qs X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: E329A40015 X-HE-Tag: 1695212792-580438 X-HE-Meta: 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 NvDzxHDl fJn5qFMLWLicuXlF3Kh2jezZTtJ1+jKBcMxrDCuJFD940pbKp64uRHT8CO2dozkQwreI6A15oN+BpiF3Gy/6JgVrWIcvkJ2S94LoMl9OkAxHiJGfbpFNwT4mtLZY7+xeK0+kDxSt+c3Gda16BaKwzm/EOum662+uJOy2hE5G5zaAB6JktfOPJAWYBUAm0taAhKyS2YsgN0zU9LiFd5P6ufREYOet9RVWaKVkUN57mJ84ki2DddlGcjVQ9cydM9T+HRGoPoqUDHD5kxj+ioei8hGKh6rNE3MtMyNg/Ldo9jmjni3VLUYZo2Gfl2vy1O3t3Y7K2dQl5PcKncaPJ700UIQYv0BvbI/BEoC6e X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, 2023-09-20 at 14:08 +0200, Christian Brauner wrote: > > I wasn't proposing to do that work for v6.6. For that, we absolutely > > either need the mount option or to just revert the mgtime conversions. >=20 > This sounds like you want me to do a full-on revert of your series but > why? The conversion and changes support an actual use-case and are fine. > It's a matter of whether we unconditionally expose it to users or not. >=20 I don't, actually. I'm just mentioning that it's possible if we find the mount option to be unpalatable. > @Jan, what do you think? >=20 > > My plan was to take a stab at doing this for a later kernel release. >=20 > Ok. If it works out, then we may be able to eventually remove the mount option, but that is a separate project altogether. --=20 Jeff Layton