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 E3A8BC41513 for ; Tue, 25 Jul 2023 14:59:38 +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=G4lNe8Og; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4R9Ktx4Mxjz3bSt for ; Wed, 26 Jul 2023 00:59:37 +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=G4lNe8Og; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=jlayton@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (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 4R9Ktr5ssBz3bqP for ; Wed, 26 Jul 2023 00:59:32 +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 0026561789; Tue, 25 Jul 2023 14:59:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24A85C433C8; Tue, 25 Jul 2023 14:59:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690297170; bh=kIvw1OVi/OYz+atwIBCynX0q88XJ1zU1WapHn2pYQP4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=G4lNe8OgwdzIy+DkoO8bA4V3fq2HfOynEvqBH0FZcXI5mjKRSEQ1SVjY1pHApZqUk LmVSxl1WUBGP7yGLH/ATsMnAnQMEPU+QAPGj8qdwUCRyUhAcUv0FTDqFlH73mrgqZw FzXbD+KfSe8VN284suFEL1YtHLX5tEg7JJkEkQGz0MGrxMX8CR2SkfzChxuDfyTNeS ZXRDShsOopX0jA288qfXuKjqRRyiZ1CyY3mdX/g1AczrOzezsb6EzZ2F8AGwPXdDYp PORRSahQS9CPN8wTXE5yLGawxDIeRTErDdxD6OfHFhzLgjKl8kPDh2mkBPRjnVLKHw ehvrosoKitaHg== From: Jeff Layton Date: Tue, 25 Jul 2023 10:58:19 -0400 Subject: [PATCH v6 6/7] ext4: switch to multigrain timestamps MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20230725-mgctime-v6-6-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=843; i=jlayton@kernel.org; h=from:subject:message-id; bh=kIvw1OVi/OYz+atwIBCynX0q88XJ1zU1WapHn2pYQP4=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBkv+MkANALyeokJ5uPYYXrLhMbqAMD2+dQLEEeI 3QOMYBSSseJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZL/jJAAKCRAADmhBGVaC FecsEADEGQ4YyezueKIIr3iE+LoOFLQ0lVcEMPslgKBrcsoHAYDw4xIHTfiRLmJTS/QKl6qdQ/d FSIkPrBSo4busWekGlohEMVxhED8IPediFhHYC1BJu3i2vSmxv2wo9z3DGJxddYsn1yasB7Jh8X V82bCE/S8+YwWBe/sU9UHYXIA/E18x/9Ut0FSPmZUwXbasPrZoaYGahxEDFFvONFPxKYVH6MIwn K4eVmycva/cc9eg3aJ9IoKpjm2lHJ6SlHwQREAxcyQZ+Tz4LAI9NG4I0N4mft7VwVj05wY4iuMV lkaoxH/4D3tYZmIldIJ9HahAnA+IlU9dZ/4YPR7iaTlZNdGssfn5cvsTHNjvp00H6KNNnr3nKEg JOy94wl7Ir1GrUPEDT1u+XQipTMQxiFjTQLc+igYmNNY+nLJu1edF6ewi3eMTP81b6gmzOHenud CQ3qmNNoiiQu5pItfIvt0j+K74oTiUZzOqrMqtEgUQ3flSJL2acI1UnY4m1h0JIEygBAMmXN/Ga 6TPHXNSLdiIKa44+muGKEdIXTv22lvk6eI3L4mwE12/sKh5INo3rOJmQKNhtubYrUtLDSvrLCQa a/tcAz4eG/zd6PdcWTx1yg8GKnXbxqwHniAFlSBVM+ziSpqGTe2fxM3iHanHqv1hysy6sBXln6X HdxNyY7YiReYS0Q== 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. For ext4, we only need to enable the FS_MGTIME flag. Signed-off-by: Jeff Layton --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index b54c70e1a74e..cb1ff47af156 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -7279,7 +7279,7 @@ static struct file_system_type ext4_fs_type = { .init_fs_context = ext4_init_fs_context, .parameters = ext4_param_specs, .kill_sb = kill_block_super, - .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, + .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP | FS_MGTIME, }; MODULE_ALIAS_FS("ext4"); -- 2.41.0