linux/fs/overlayfs
Christian Brauner 6c960e68aa
fs: port ->create() to pass mnt_idmap
Convert to struct mnt_idmap.

Last cycle we merged the necessary infrastructure in
256c8aed2b ("fs: introduce dedicated idmap type for mounts").
This is just the conversion to struct mnt_idmap.

Currently we still pass around the plain namespace that was attached to a
mount. This is in general pretty convenient but it makes it easy to
conflate namespaces that are relevant on the filesystem with namespaces
that are relevent on the mount level. Especially for non-vfs developers
without detailed knowledge in this area this can be a potential source for
bugs.

Once the conversion to struct mnt_idmap is done all helpers down to the
really low-level helpers will take a struct mnt_idmap argument instead of
two namespace arguments. This way it becomes impossible to conflate the two
eliminating the possibility of any bugs. All of the vfs and all filesystems
only operate on struct mnt_idmap.

Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
2023-01-19 09:24:25 +01:00
..
copy_up.c ovl: use posix acl api 2022-10-20 10:13:31 +02:00
dir.c fs: port ->create() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
export.c ovl: do not reconnect upper index records in ovl_indexdir_cleanup() 2022-12-08 10:49:46 +01:00
file.c overlayfs update for 6.2 2022-12-12 20:18:26 -08:00
inode.c fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
Kconfig ovl: Kconfig: Fix spelling mistake "undelying" -> "underlying" 2022-12-08 10:49:46 +01:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
namei.c ovl: Add comment on upperredirect reassignment 2022-12-08 10:49:46 +01:00
overlayfs.h fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
ovl_entry.h fs: port vfs_*() helpers to struct mnt_idmap 2023-01-18 17:51:45 +01:00
readdir.c ovl: use inode instead of dentry where possible 2022-12-08 10:49:46 +01:00
super.c overlayfs update for 6.2 2022-12-12 20:18:26 -08:00
util.c ovl: use inode instead of dentry where possible 2022-12-08 10:49:46 +01:00