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linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, ecryptfs@vger.kernel.org, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, linux-karma-devel@lists.sourceforge.net, devel@lists.orangefs.org, linux-unionfs@vger.kernel.org, linux-hardening@vger.kernel.org, reiserfs-devel@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-trace-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Subject: [PATCH v2 00/89] fs: new accessors for inode->i_ctime Date: Wed, 5 Jul 2023 14:58:09 -0400 Message-ID: <20230705185812.579118-1-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org v2: - prepend patches to add missing ctime updates - add simple_rename_timestamp helper function - rename ctime accessor functions as inode_get_ctime/inode_set_ctime_* - drop individual inode_ctime_set_{sec,nsec} helpers I've been working on a patchset to change how the inode->i_ctime is accessed in order to give us conditional, high-res timestamps for the ctime and mtime. struct timespec64 has unused bits in it that we can use to implement this. In order to do that however, we need to wrap all accesses of inode->i_ctime to ensure that bits used as flags are appropriately handled. The patchset starts with reposts of some missing ctime updates that I spotted in the tree. It then adds a new helper function for updating the timestamp after a successful rename, and new ctime accessor infrastructure. The bulk of the patchset is individual conversions of different subsysteme to use the new infrastructure. Finally, the patchset renames the i_ctime field to __i_ctime to help ensure that I didn't miss anything. This should apply cleanly to linux-next as of this morning. Most of this conversion was done via 5 different coccinelle scripts, run in succession, with a large swath of by-hand conversions to clean up the remainder. The coccinelle scripts that were used are below: :::::::::::::: cocci/ctime1.cocci :::::::::::::: // convert as much to use inode_set_ctime_current as possible @@ identifier timei; struct inode *inode; expression E1, E2; @@ ( - inode->i_ctime = E1 = E2 = current_time(timei) + E1 = E2 = inode_set_ctime_current(inode) | - inode->i_ctime = E1 = current_time(timei) + E1 = inode_set_ctime_current(inode) | - E1 = inode->i_ctime = current_time(timei) + E1 = inode_set_ctime_current(inode) | - inode->i_ctime = current_time(timei) + inode_set_ctime_current(inode) ) @@ struct inode *inode; expression E1, E2, E3; @@ ( - E1 = current_time(inode) + E1 = inode_set_ctime_current(inode) | - E1 = current_time(E3) + E1 = inode_set_ctime_current(inode) ) ... ( - inode->i_ctime = E1; | - E2 = inode->i_ctime = E1; + E2 = E1; ) :::::::::::::: cocci/ctime2.cocci :::::::::::::: // get the places that set individual timespec64 fields @@ struct inode *inode; expression val, val2; @@ - inode->i_ctime.tv_sec = val + inode_set_ctime(inode, val, val2) ... - inode->i_ctime.tv_nsec = val2; // get places that just set the tv_sec @@ struct inode *inode; expression sec, E1, E2, E3; @@ ( - E3 = inode->i_ctime.tv_sec = sec + E3 = inode_set_ctime(inode, sec, 0).tv_sec | - inode->i_ctime.tv_sec = sec + inode_set_ctime(inode, sec, 0) ) <... ( - inode->i_ctime.tv_nsec = 0; | - E1 = inode->i_ctime.tv_nsec = 0 + E1 = 0 | - inode->i_ctime.tv_nsec = E1 = 0 + E1 = 0 | - inode->i_ctime.tv_nsec = E1 = E2 = 0 + E1 = E2 = 0 ) ...> :::::::::::::: cocci/ctime3.cocci :::::::::::::: // convert places that set i_ctime to a timespec64 directly @@ struct inode *inode; expression ts, E1, E2; @@ ( - inode->i_ctime = E1 = E2 = ts + E1 = E2 = inode_set_ctime_to_ts(inode, ts) | - inode->i_ctime = E1 = ts + E1 = inode_set_ctime_to_ts(inode, ts) | - inode->i_ctime = ts + inode_set_ctime_to_ts(inode, ts) ) :::::::::::::: cocci/ctime4.cocci :::::::::::::: // catch places that set the i_ctime in an inode embedded in another structure @@ expression E1, E2, E3; @@ ( - E3.i_ctime = E1 = E2 = current_time(&E3) + E1 = E2 = inode_set_ctime_current(&E3) | - E3.i_ctime = E1 = current_time(&E3) + E1 = inode_set_ctime_current(&E3) | - E1 = E3.i_ctime = current_time(&E3) + E1 = inode_set_ctime_current(&E3) | - E3.i_ctime = current_time(&E3) + inode_set_ctime_current(&E3) ) :::::::::::::: cocci/ctime5.cocci :::::::::::::: // convert the remaining i_ctime accesses @@ struct inode *inode; @@ - inode->i_ctime + inode_get_ctime(inode) Jeff Layton (92): ibmvmc: update ctime in conjunction with mtime on write bfs: update ctime in addition to mtime when adding entries efivarfs: update ctime when mtime changes on a write exfat: ensure that ctime is updated whenever the mtime is apparmor: update ctime whenever the mtime changes on an inode cifs: update the ctime on a partial page write fs: add ctime accessors infrastructure fs: new helper: simple_rename_timestamp btrfs: convert to simple_rename_timestamp ubifs: convert to simple_rename_timestamp shmem: convert to simple_rename_timestamp exfat: convert to simple_rename_timestamp ntfs3: convert to simple_rename_timestamp reiserfs: convert to simple_rename_timestamp spufs: convert to ctime accessor functions s390: convert to ctime accessor functions binderfs: convert to ctime accessor functions infiniband: convert to ctime accessor functions ibm: convert to ctime accessor functions usb: convert to ctime accessor functions 9p: convert to ctime accessor functions adfs: convert to ctime accessor functions affs: convert to ctime accessor functions afs: convert to ctime accessor functions fs: convert to ctime accessor functions autofs: convert to ctime accessor functions befs: convert to ctime accessor functions bfs: convert to ctime accessor functions btrfs: convert to ctime accessor functions ceph: convert to ctime accessor functions coda: convert to ctime accessor functions configfs: convert to ctime accessor functions cramfs: convert to ctime accessor functions debugfs: convert to ctime accessor functions devpts: convert to ctime accessor functions ecryptfs: convert to ctime accessor functions efivarfs: convert to ctime accessor functions efs: convert to ctime accessor functions erofs: convert to ctime accessor functions exfat: convert to ctime accessor functions ext2: convert to ctime accessor functions ext4: convert to ctime accessor functions f2fs: convert to ctime accessor functions fat: convert to ctime accessor functions freevxfs: convert to ctime accessor functions fuse: convert to ctime accessor functions gfs2: convert to ctime accessor functions hfs: convert to ctime accessor functions hfsplus: convert to ctime accessor functions hostfs: convert to ctime accessor functions hpfs: convert to ctime accessor functions hugetlbfs: convert to ctime accessor functions isofs: convert to ctime accessor functions jffs2: convert to ctime accessor functions jfs: convert to ctime accessor functions kernfs: convert to ctime accessor functions nfs: convert to ctime accessor functions nfsd: convert to ctime accessor functions nilfs2: convert to ctime accessor functions ntfs: convert to ctime accessor functions ntfs3: convert to ctime accessor functions ocfs2: convert to ctime accessor functions omfs: convert to ctime accessor functions openpromfs: convert to ctime accessor functions orangefs: convert to ctime accessor functions overlayfs: convert to ctime accessor functions procfs: convert to ctime accessor functions pstore: convert to ctime accessor functions qnx4: convert to ctime accessor functions qnx6: convert to ctime accessor functions ramfs: convert to ctime accessor functions reiserfs: convert to ctime accessor functions romfs: convert to ctime accessor functions smb: convert to ctime accessor functions squashfs: convert to ctime accessor functions sysv: convert to ctime accessor functions tracefs: convert to ctime accessor functions ubifs: convert to ctime accessor functions udf: convert to ctime accessor functions ufs: convert to ctime accessor functions vboxsf: convert to ctime accessor functions xfs: convert to ctime accessor functions zonefs: convert to ctime accessor functions linux: convert to ctime accessor functions mqueue: convert to ctime accessor functions bpf: convert to ctime accessor functions shmem: convert to ctime accessor functions sunrpc: convert to ctime accessor functions apparmor: convert to ctime accessor functions security: convert to ctime accessor functions selinux: convert to ctime accessor functions fs: rename i_ctime field to __i_ctime arch/powerpc/platforms/cell/spufs/inode.c | 2 +- arch/s390/hypfs/inode.c | 4 +- drivers/android/binderfs.c | 8 ++-- drivers/infiniband/hw/qib/qib_fs.c | 3 +- drivers/misc/ibmasm/ibmasmfs.c | 2 +- drivers/misc/ibmvmc.c | 2 +- drivers/usb/core/devio.c | 16 +++---- drivers/usb/gadget/function/f_fs.c | 3 +- drivers/usb/gadget/legacy/inode.c | 3 +- fs/9p/vfs_inode.c | 4 +- fs/9p/vfs_inode_dotl.c | 8 ++-- fs/adfs/inode.c | 4 +- fs/affs/amigaffs.c | 6 +-- fs/affs/inode.c | 16 +++---- fs/afs/dynroot.c | 2 +- fs/afs/inode.c | 6 +-- fs/attr.c | 2 +- fs/autofs/inode.c | 2 +- fs/autofs/root.c | 6 +-- fs/bad_inode.c | 3 +- fs/befs/linuxvfs.c | 2 +- fs/bfs/dir.c | 16 +++---- fs/bfs/inode.c | 5 +-- fs/binfmt_misc.c | 3 +- fs/btrfs/delayed-inode.c | 8 ++-- fs/btrfs/file.c | 21 ++++----- fs/btrfs/inode.c | 54 ++++++++-------------- fs/btrfs/ioctl.c | 2 +- fs/btrfs/reflink.c | 3 +- fs/btrfs/transaction.c | 3 +- fs/btrfs/tree-log.c | 4 +- fs/btrfs/xattr.c | 4 +- fs/ceph/acl.c | 2 +- fs/ceph/caps.c | 2 +- fs/ceph/inode.c | 17 ++++--- fs/ceph/snap.c | 2 +- fs/ceph/xattr.c | 2 +- fs/coda/coda_linux.c | 3 +- fs/coda/dir.c | 2 +- fs/coda/file.c | 2 +- fs/coda/inode.c | 2 +- fs/configfs/inode.c | 7 ++- fs/cramfs/inode.c | 3 +- fs/debugfs/inode.c | 3 +- fs/devpts/inode.c | 6 +-- fs/ecryptfs/inode.c | 2 +- fs/efivarfs/file.c | 2 +- fs/efivarfs/inode.c | 2 +- fs/efs/inode.c | 4 +- fs/erofs/inode.c | 15 +++---- fs/exfat/file.c | 4 +- fs/exfat/inode.c | 6 +-- fs/exfat/namei.c | 26 +++++------ fs/exfat/super.c | 3 +- fs/ext2/acl.c | 2 +- fs/ext2/dir.c | 6 +-- fs/ext2/ialloc.c | 2 +- fs/ext2/inode.c | 10 ++--- fs/ext2/ioctl.c | 4 +- fs/ext2/namei.c | 8 ++-- fs/ext2/super.c | 2 +- fs/ext2/xattr.c | 2 +- fs/ext4/acl.c | 2 +- fs/ext4/ext4.h | 21 +++++++++ fs/ext4/extents.c | 12 ++--- fs/ext4/ialloc.c | 2 +- fs/ext4/inline.c | 4 +- fs/ext4/inode.c | 16 +++---- fs/ext4/ioctl.c | 9 ++-- fs/ext4/namei.c | 26 +++++------ fs/ext4/super.c | 2 +- fs/ext4/xattr.c | 6 +-- fs/f2fs/dir.c | 8 ++-- fs/f2fs/f2fs.h | 4 +- fs/f2fs/file.c | 20 ++++----- fs/f2fs/inline.c | 2 +- fs/f2fs/inode.c | 10 ++--- fs/f2fs/namei.c | 12 ++--- fs/f2fs/recovery.c | 4 +- fs/f2fs/super.c | 2 +- fs/f2fs/xattr.c | 2 +- fs/fat/inode.c | 7 +-- fs/fat/misc.c | 3 +- fs/freevxfs/vxfs_inode.c | 3 +- fs/fuse/control.c | 2 +- fs/fuse/dir.c | 8 ++-- fs/fuse/inode.c | 16 +++---- fs/gfs2/acl.c | 2 +- fs/gfs2/bmap.c | 11 +++-- fs/gfs2/dir.c | 15 ++++--- fs/gfs2/file.c | 2 +- fs/gfs2/glops.c | 4 +- fs/gfs2/inode.c | 8 ++-- fs/gfs2/super.c | 4 +- fs/gfs2/xattr.c | 8 ++-- fs/hfs/catalog.c | 8 ++-- fs/hfs/dir.c | 2 +- fs/hfs/inode.c | 13 +++--- fs/hfs/sysdep.c | 4 +- fs/hfsplus/catalog.c | 8 ++-- fs/hfsplus/dir.c | 6 +-- fs/hfsplus/inode.c | 16 ++++--- fs/hostfs/hostfs_kern.c | 3 +- fs/hpfs/dir.c | 8 ++-- fs/hpfs/inode.c | 6 +-- fs/hpfs/namei.c | 26 ++++++----- fs/hpfs/super.c | 5 ++- fs/hugetlbfs/inode.c | 12 ++--- fs/inode.c | 26 +++++++++-- fs/isofs/inode.c | 8 ++-- fs/isofs/rock.c | 16 +++---- fs/jffs2/dir.c | 24 ++++++---- fs/jffs2/file.c | 3 +- fs/jffs2/fs.c | 10 ++--- fs/jffs2/os-linux.h | 2 +- fs/jfs/acl.c | 2 +- fs/jfs/inode.c | 2 +- fs/jfs/ioctl.c | 2 +- fs/jfs/jfs_imap.c | 8 ++-- fs/jfs/jfs_inode.c | 4 +- fs/jfs/namei.c | 24 +++++----- fs/jfs/super.c | 2 +- fs/jfs/xattr.c | 2 +- fs/kernfs/inode.c | 5 +-- fs/libfs.c | 55 +++++++++++++++-------- fs/minix/bitmap.c | 2 +- fs/minix/dir.c | 6 +-- fs/minix/inode.c | 10 ++--- fs/minix/itree_common.c | 4 +- fs/minix/namei.c | 6 +-- fs/nfs/callback_proc.c | 2 +- fs/nfs/fscache.h | 4 +- fs/nfs/inode.c | 20 ++++----- fs/nfsd/nfsctl.c | 2 +- fs/nfsd/vfs.c | 2 +- fs/nilfs2/dir.c | 6 +-- fs/nilfs2/inode.c | 12 ++--- fs/nilfs2/ioctl.c | 2 +- fs/nilfs2/namei.c | 8 ++-- fs/nsfs.c | 2 +- fs/ntfs/inode.c | 15 ++++--- fs/ntfs/mft.c | 3 +- fs/ntfs3/file.c | 6 +-- fs/ntfs3/frecord.c | 3 +- fs/ntfs3/inode.c | 14 +++--- fs/ntfs3/namei.c | 11 ++--- fs/ntfs3/xattr.c | 4 +- fs/ocfs2/acl.c | 6 +-- fs/ocfs2/alloc.c | 6 +-- fs/ocfs2/aops.c | 2 +- fs/ocfs2/dir.c | 8 ++-- fs/ocfs2/dlmfs/dlmfs.c | 4 +- fs/ocfs2/dlmglue.c | 7 ++- fs/ocfs2/file.c | 16 ++++--- fs/ocfs2/inode.c | 12 ++--- fs/ocfs2/move_extents.c | 6 +-- fs/ocfs2/namei.c | 21 ++++----- fs/ocfs2/refcounttree.c | 14 +++--- fs/ocfs2/xattr.c | 6 +-- fs/omfs/dir.c | 4 +- fs/omfs/inode.c | 9 ++-- fs/openpromfs/inode.c | 5 +-- fs/orangefs/namei.c | 2 +- fs/orangefs/orangefs-utils.c | 6 +-- fs/overlayfs/file.c | 7 ++- fs/overlayfs/util.c | 2 +- fs/pipe.c | 2 +- fs/posix_acl.c | 2 +- fs/proc/base.c | 2 +- fs/proc/inode.c | 2 +- fs/proc/proc_sysctl.c | 2 +- fs/proc/self.c | 2 +- fs/proc/thread_self.c | 2 +- fs/pstore/inode.c | 4 +- fs/qnx4/inode.c | 3 +- fs/qnx6/inode.c | 3 +- fs/ramfs/inode.c | 6 +-- fs/reiserfs/inode.c | 12 +++-- fs/reiserfs/ioctl.c | 4 +- fs/reiserfs/namei.c | 18 +++----- fs/reiserfs/stree.c | 4 +- fs/reiserfs/super.c | 2 +- fs/reiserfs/xattr.c | 5 ++- fs/reiserfs/xattr_acl.c | 2 +- fs/romfs/super.c | 4 +- fs/smb/client/file.c | 4 +- fs/smb/client/fscache.h | 5 ++- fs/smb/client/inode.c | 14 +++--- fs/smb/client/smb2ops.c | 3 +- fs/smb/server/smb2pdu.c | 8 ++-- fs/squashfs/inode.c | 2 +- fs/stack.c | 2 +- fs/stat.c | 2 +- fs/sysv/dir.c | 6 +-- fs/sysv/ialloc.c | 2 +- fs/sysv/inode.c | 5 +-- fs/sysv/itree.c | 4 +- fs/sysv/namei.c | 6 +-- fs/tracefs/inode.c | 2 +- fs/ubifs/debug.c | 4 +- fs/ubifs/dir.c | 39 ++++++---------- fs/ubifs/file.c | 16 ++++--- fs/ubifs/ioctl.c | 2 +- fs/ubifs/journal.c | 4 +- fs/ubifs/super.c | 4 +- fs/ubifs/xattr.c | 6 +-- fs/udf/ialloc.c | 2 +- fs/udf/inode.c | 17 ++++--- fs/udf/namei.c | 24 +++++----- fs/ufs/dir.c | 6 +-- fs/ufs/ialloc.c | 2 +- fs/ufs/inode.c | 23 +++++----- fs/ufs/namei.c | 8 ++-- fs/vboxsf/utils.c | 4 +- fs/xfs/libxfs/xfs_inode_buf.c | 5 ++- fs/xfs/libxfs/xfs_trans_inode.c | 2 +- fs/xfs/xfs_acl.c | 2 +- fs/xfs/xfs_bmap_util.c | 6 ++- fs/xfs/xfs_inode.c | 3 +- fs/xfs/xfs_inode_item.c | 2 +- fs/xfs/xfs_iops.c | 4 +- fs/xfs/xfs_itable.c | 4 +- fs/zonefs/super.c | 8 ++-- include/linux/fs.h | 49 +++++++++++++++++++- include/linux/fs_stack.h | 2 +- ipc/mqueue.c | 23 +++++----- kernel/bpf/inode.c | 6 +-- mm/shmem.c | 26 +++++------ net/sunrpc/rpc_pipe.c | 2 +- security/apparmor/apparmorfs.c | 11 +++-- security/apparmor/policy_unpack.c | 11 +++-- security/inode.c | 2 +- security/selinux/selinuxfs.c | 2 +- 233 files changed, 901 insertions(+), 812 deletions(-)