diff options
| author | Christian Brauner <brauner@kernel.org> | 2023-01-13 14:49:21 +0300 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 11:24:27 +0300 |
| commit | 8782a9aea3ab4d697ad67d1f8ebca38a4e1c24ab (patch) | |
| tree | 463017f753777d4b79f72166dc586e60cfbaff03 /fs/overlayfs | |
| parent | 13e83a4923bea7c4f2f6714030cb7e56d20ef7e5 (diff) | |
| download | linux-8782a9aea3ab4d697ad67d1f8ebca38a4e1c24ab.tar.xz | |
fs: port ->fileattr_set() to pass mnt_idmap
Convert to struct mnt_idmap.
Last cycle we merged the necessary infrastructure in
256c8aed2b42 ("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>
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/inode.c | 4 | ||||
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index f52d9304d7e4..a41a03fcf6bc 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -757,10 +757,10 @@ int ovl_real_fileattr_set(const struct path *realpath, struct fileattr *fa) if (err) return err; - return vfs_fileattr_set(mnt_user_ns(realpath->mnt), realpath->dentry, fa); + return vfs_fileattr_set(mnt_idmap(realpath->mnt), realpath->dentry, fa); } -int ovl_fileattr_set(struct user_namespace *mnt_userns, +int ovl_fileattr_set(struct mnt_idmap *idmap, struct dentry *dentry, struct fileattr *fa) { struct inode *inode = d_inode(dentry); diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 0f2ac8402f10..8091b1914ea3 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -718,7 +718,7 @@ void ovl_aio_request_cache_destroy(void); int ovl_real_fileattr_get(const struct path *realpath, struct fileattr *fa); int ovl_real_fileattr_set(const struct path *realpath, struct fileattr *fa); int ovl_fileattr_get(struct dentry *dentry, struct fileattr *fa); -int ovl_fileattr_set(struct user_namespace *mnt_userns, +int ovl_fileattr_set(struct mnt_idmap *idmap, struct dentry *dentry, struct fileattr *fa); /* copy_up.c */ |