Message ID | 20230713-mgctime-v5-3-9eb795d2ae37@kernel.org |
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State | New |
Headers | show
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Thu, 13 Jul 2023 23:01:31 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qK5JR-004VIk-0Z; Thu, 13 Jul 2023 23:01:30 +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 B3CDD61B23; Thu, 13 Jul 2023 23:01:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 285D7C433B7; Thu, 13 Jul 2023 23:01:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1689289288; bh=2uDpIMGQVMt/gC4T/BxJPAgKQID6PeU0gqKfksNKWnI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=liyRtyj08RhKgd05d/GbjIK8eAKSM10LdUJBz7UuFOcUyezObweCSPR4L5Jm7d/3+ J9oIvEYe6CWGwt55Hx9zbqLwPbb7BBKC8OMsAe7qX+kkwyjZAQBfJ+ADRMrXxSSmW8 Xzwhwg78up7SO0XMuFLZ6g+/2Pu108+rBwN7yk/z/7oyzpziWvzwOA3XIxMpCer4y9 lDdui9+QJ0qeG2V6Gtk4RHRd2VjBrRFJoqgHMQsHg6pmArcdKXD18EFN0CSdElLHCP iu0JCzqZtl2wBu87Ybj2JDoeOy/UseVuaxAORwjKb983nHW0GT8ewtb0Icu2w+Gl8j yMGVOCivsa/7g== From: Jeff Layton <jlayton@kernel.org> Date: Thu, 13 Jul 2023 19:00:52 -0400 Subject: [PATCH v5 3/8] tmpfs: bump the mtime/ctime/iversion when page becomes writeable MIME-Version: 1.0 Message-Id: <20230713-mgctime-v5-3-9eb795d2ae37@kernel.org> References: <20230713-mgctime-v5-0-9eb795d2ae37@kernel.org> In-Reply-To: <20230713-mgctime-v5-0-9eb795d2ae37@kernel.org> To: Eric Van Hensbergen <ericvh@kernel.org>, Latchesar Ionkov <lucho@ionkov.net>, Dominique Martinet <asmadeus@codewreck.org>, Christian Schoenebeck <linux_oss@crudebyte.com>, David Howells <dhowells@redhat.com>, Marc Dionne <marc.dionne@auristor.com>, Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>, David Sterba <dsterba@suse.com>, Xiubo Li <xiubli@redhat.com>, Ilya Dryomov <idryomov@gmail.com>, Jan Harkes <jaharkes@cs.cmu.edu>, coda@cs.cmu.edu, Tyler Hicks <code@tyhicks.com>, Gao Xiang <xiang@kernel.org>, Chao Yu <chao@kernel.org>, Yue Hu <huyue2@coolpad.com>, Jeffle Xu <jefflexu@linux.alibaba.com>, Namjae Jeon <linkinjeon@kernel.org>, Sungjong Seo <sj1557.seo@samsung.com>, Jan Kara <jack@suse.com>, Theodore Ts'o <tytso@mit.edu>, Andreas Dilger <adilger.kernel@dilger.ca>, Jaegeuk Kim <jaegeuk@kernel.org>, OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>, Miklos Szeredi <miklos@szeredi.hu>, Bob Peterson <rpeterso@redhat.com>, Andreas Gruenbacher <agruenba@redhat.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Tejun Heo <tj@kernel.org>, Alexander Viro <viro@zeniv.linux.org.uk>, Christian Brauner <brauner@kernel.org>, Trond Myklebust <trond.myklebust@hammerspace.com>, Anna Schumaker <anna@kernel.org>, Konstantin Komarov <almaz.alexandrovich@paragon-software.com>, Mark Fasheh <mark@fasheh.com>, Joel Becker <jlbec@evilplan.org>, Joseph Qi <joseph.qi@linux.alibaba.com>, Mike Marshall <hubcap@omnibond.com>, Martin Brandenburg <martin@omnibond.com>, Luis Chamberlain <mcgrof@kernel.org>, Kees Cook <keescook@chromium.org>, Iurii Zaikin <yzaikin@google.com>, Steve French <sfrench@samba.org>, Paulo Alcantara <pc@manguebit.com>, Ronnie Sahlberg <lsahlber@redhat.com>, Shyam Prasad N <sprasad@microsoft.com>, Tom Talpey <tom@talpey.com>, Sergey Senozhatsky <senozhatsky@chromium.org>, Richard Weinberger <richard@nod.at>, Hans de Goede <hdegoede@redhat.com>, Hugh Dickins <hughd@google.com>, Andrew Morton <akpm@linux-foundation.org>, "Darrick J. Wong" <djwong@kernel.org> Cc: Dave Chinner <david@fromorbit.com>, v9fs@lists.linux.dev, linux-kernel@vger.kernel.org, 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-fsdevel@vger.kernel.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-xfs@vger.kernel.org, Jeff Layton <jlayton@kernel.org> X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1641; i=jlayton@kernel.org; h=from:subject:message-id; bh=2uDpIMGQVMt/gC4T/BxJPAgKQID6PeU0gqKfksNKWnI=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBksIIusbBzLs0MybgDecBYC1rFLHPwWpvQ+zecR awgGePAm6qJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZLCCLgAKCRAADmhBGVaC FcSGEACub8Fc5S/WfyUSGxfmCSi3555ycDn+zVKXSPPiQKW1TR9LYRkybKANZmP0XYzYILSUfkU ORbNjYimhQNCSxlPeeC40MyHzjga0VRHqurUT8qqaVIVJ0nl+StBd40KLXAljpP3WXM1fGUAjvH vqO6pP6I3K3R/4qwCRMhWrNAcqt+qYKWVUUztTablCUbuklzQoblG24U2NK2DUfGepPumyDoeLH wYod7Y1kJ92qyEoEOPNjj1+tfqjWvN7+tAsFQwpD+N0sljCCXcg2XWKOgVJBsYaXx5OEbRfi6s3 ryBXi9Xk0/jA6otq2rUp6HaQyJkl6teNxs+4rz75eCu8rN02oQaqFzL83u3vBt3uPmVA1pHdS8E cYZhQx3P7nvLTFlUjA0Rbi4sH0FtHNJd3k1Gzcl8UkDcxVz29S7geHX+Nfj1BSUqKI8uA6NsJuI nzON+pBrEdS0RRFHXzAKsdPlG285eEeNPzqWMmCPQ8I0XVLSP4vbJ+WFJhx6uO+c2gz3VEz5rKg 46OipSdHjwUcz6Ps1TPvZpf/Z2bvpL5yiA+tPHgQX1nrRyMepOjxjN4vJX/dTEcENn7ySGN2vWY /RoI7eVxl9z18K25MgUs7+5WZGKkUPepl/96nVkOPQyWbt7euX8Tx6c+OgzD7T9pvDRi9idRO+a oNvcYRCw+z4sY9A== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230713_160129_291216_6BDCCD6F X-CRM114-Status: GOOD ( 12.69 ) X-Spam-Score: -5.4 (-----) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Most filesystems that use the pagecache will update the mtime, ctime, and change attribute when a page becomes writeable. Add a page_mkwrite operation for tmpfs and just use it to bump the mtime, ctim [...] Content analysis details: (-5.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [139.178.84.217 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.2 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list <linux-mtd.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-mtd/> List-Post: <mailto:linux-mtd@lists.infradead.org> List-Help: <mailto:linux-mtd-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org> Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org |
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fs: implement multigrain timestamps
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expand
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diff --git a/mm/shmem.c b/mm/shmem.c index b154af49d2df..654d9a585820 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2169,6 +2169,16 @@ static vm_fault_t shmem_fault(struct vm_fault *vmf) return ret; } +static vm_fault_t shmem_page_mkwrite(struct vm_fault *vmf) +{ + struct vm_area_struct *vma = vmf->vma; + struct inode *inode = file_inode(vma->vm_file); + + file_update_time(vma->vm_file); + inode_inc_iversion(inode); + return 0; +} + unsigned long shmem_get_unmapped_area(struct file *file, unsigned long uaddr, unsigned long len, unsigned long pgoff, unsigned long flags) @@ -4210,6 +4220,7 @@ static const struct super_operations shmem_ops = { static const struct vm_operations_struct shmem_vm_ops = { .fault = shmem_fault, + .page_mkwrite = shmem_page_mkwrite, .map_pages = filemap_map_pages, #ifdef CONFIG_NUMA .set_policy = shmem_set_policy, @@ -4219,6 +4230,7 @@ static const struct vm_operations_struct shmem_vm_ops = { static const struct vm_operations_struct shmem_anon_vm_ops = { .fault = shmem_fault, + .page_mkwrite = shmem_page_mkwrite, .map_pages = filemap_map_pages, #ifdef CONFIG_NUMA .set_policy = shmem_set_policy,
Most filesystems that use the pagecache will update the mtime, ctime, and change attribute when a page becomes writeable. Add a page_mkwrite operation for tmpfs and just use it to bump the mtime, ctime and change attribute. This fixes xfstest generic/080 on tmpfs. Signed-off-by: Jeff Layton <jlayton@kernel.org> --- mm/shmem.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)