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.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 52C29C04E69 for ; Tue, 25 Jul 2023 14:59:27 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=OKVh6IhR; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4R9Ktj6g86z3bqP for ; Wed, 26 Jul 2023 00:59:25 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=OKVh6IhR; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=jlayton@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (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 lists.ozlabs.org (Postfix) with ESMTPS id 4R9Ktb5Rk9z3bq4 for ; Wed, 26 Jul 2023 00:59:19 +1000 (AEST) 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 C9414617AF; Tue, 25 Jul 2023 14:59:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1FE35C433BA; Tue, 25 Jul 2023 14:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690297157; bh=1/8G5JaqUI6KuuI2rdJCgZt0gS2ge3CDkWe83TSi7uM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OKVh6IhRvMPzZaUNNT/6mBAoahekKV8Su19ujYhua5dNsSJXGr2MngNtpKOYADlS5 Hcq3wM7FDUZ1AhwU5l0SkI1+lCCn8xOR0JJEjELHxkXsYQRXohxF15c8QjQl0Xm+Dp AabYaBtk81zigqO/ZNjxOWuBUbzqMLIiq+sCKRMr913CtPRA3nMy4ZQya2P+aMfBUm DfLibUhnVNjPNL0YkM5WeV2HMZF3SVAzWSiYRKfJIayN7D5eWYtRDof0ETICfcAJhP 1QdzIniwIyLPb29vjUNBQTa5/ioEZS6W4QeTzhNnSbuJelJPSwWTBbQCum2wVq78oc 3sGYY+SrEP5rg== From: Jeff Layton Date: Tue, 25 Jul 2023 10:58:17 -0400 Subject: [PATCH v6 4/7] tmpfs: add support for multigrain timestamps MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20230725-mgctime-v6-4-a794c2b7abca@kernel.org> References: <20230725-mgctime-v6-0-a794c2b7abca@kernel.org> In-Reply-To: <20230725-mgctime-v6-0-a794c2b7abca@kernel.org> To: 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 , Bob Peterson , Andreas Gruenbacher , Greg Kroah-Hartman , Tejun Heo , Alexander Viro , Christian Brauner , 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 , "Darrick J. Wong" X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=769; i=jlayton@kernel.org; h=from:subject:message-id; bh=1/8G5JaqUI6KuuI2rdJCgZt0gS2ge3CDkWe83TSi7uM=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBkv+Mkeyk/syoIEMjY8h9EHJqsxQ0aWd6cS3gVn sS0hR6R/6SJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZL/jJAAKCRAADmhBGVaC FYYkD/9ytQv3AFDwSgID22VN0gkInS/gdWOU/XMQQ111VBBi+jtoL8sLhVN5+hTN45+z+uGCwcK ELptnx+sw1zyhpa/86b54P+Vj5/WEHTeyw/CugTFYvMMoxwZw3ZF8vYg4M+6ynQZWEJf2tQTk2K tdiekC/jrc+9KjYzeRXXoAq7TsgQVc8u4/u2BW+1mdUZ98N9dl6u4nDXkARcLRI+LqNSqh9d6yO IxOufKgdLh3pGMAHW0q+fSoPiNMaAQfCgxRx5Zy5ia1ZTPZzU6Mby8JrQ1f7U5WMxcYwL5SocmN G1UQX9z0RwE31B3CXLu6imdPlx5v9rro+6PBLF3MSRTzzmiLn5NVhf3ASxqYHB88Pxb8/YrZ5Hf p/mwAO9pFriehz2pTk7gj/rsg8EUkXvtGxT5/Ud0BQecMRLtzeelj7BsIirEdqiFM+oyJieS+6R yLQRWQ90+womEnX2UOBBDcSKJ4IRMVFTxqfRtTbtj+avSSM1HsqYg0PG+ZTcD7VzonTutJSupea MDCgNVtA3BSf4FlJtanXc6obMiQXMpaMbvRF7g7ZZQQ+I6clgjwlo2maEMVCXlobjZ7og+2Vn/L zdsEdNjCGYRoIRNzoAeGM8rXQ6ra0wNwBlgnVC6G77t8+98CH+j80wmzcqQzAx9NPFqiEcsD79b 2pTWmlY/xVg/8Xw== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jeff Layton , Dave Chinner , linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, Anthony Iliopoulos , ecryptfs@vger.kernel.org, ocfs2-devel@lists.linux.dev, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, 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, linux-fsdevel@vger.kernel.org, ntfs3@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" Enable multigrain timestamps, which should ensure that there is an apparent change to the timestamp whenever it has been written after being actively observed via getattr. tmpfs only requires the FS_MGTIME flag. Signed-off-by: Jeff Layton --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index 654d9a585820..b6019c905058 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -4264,7 +4264,7 @@ static struct file_system_type shmem_fs_type = { #endif .kill_sb = kill_litter_super, #ifdef CONFIG_SHMEM - .fs_flags = FS_USERNS_MOUNT | FS_ALLOW_IDMAP, + .fs_flags = FS_USERNS_MOUNT | FS_ALLOW_IDMAP | FS_MGTIME, #else .fs_flags = FS_USERNS_MOUNT, #endif -- 2.41.0