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Message-ID: <20230705185812.579118-1-jlayton@kernel.org>
Date: Wed, 5 Jul 2023 14:58:09 -0400
From: Jeff Layton <jlayton@...nel.org>
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Subject: [PATCH v2 00/89] fs: new accessors for inode->i_ctime
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(-)
--
2.41.0
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