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| author | Christian Brauner <brauner@kernel.org> | 2023-01-13 12:49:20 +0100 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 09:24:27 +0100 |
| commit | 13e83a4923bea7c4f2f6714030cb7e56d20ef7e5 (patch) | |
| tree | f57f12f138ca1d0a5822a5620e9d2d71eeb5534f /fs/ext2 | |
| parent | 77435322777d8a8a08264a39111bef94e32b871b (diff) | |
| download | linux-next-13e83a4923bea7c4f2f6714030cb7e56d20ef7e5.tar.gz | |
fs: port ->set_acl() 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/ext2')
| -rw-r--r-- | fs/ext2/acl.c | 2 | ||||
| -rw-r--r-- | fs/ext2/acl.h | 2 | ||||
| -rw-r--r-- | fs/ext2/inode.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c index 440d5f1e9d47..f20953c7ec65 100644 --- a/fs/ext2/acl.c +++ b/fs/ext2/acl.c @@ -219,7 +219,7 @@ __ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type) * inode->i_mutex: down */ int -ext2_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry, +ext2_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, struct posix_acl *acl, int type) { int error; diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h index 3841becb94ff..4a8443a2b8ec 100644 --- a/fs/ext2/acl.h +++ b/fs/ext2/acl.h @@ -56,7 +56,7 @@ static inline int ext2_acl_count(size_t size) /* acl.c */ extern struct posix_acl *ext2_get_acl(struct inode *inode, int type, bool rcu); -extern int ext2_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry, +extern int ext2_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, struct posix_acl *acl, int type); extern int ext2_init_acl (struct inode *, struct inode *); diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index bbc9941dbb43..fb7fdadefd3d 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -1647,7 +1647,7 @@ int ext2_setattr(struct mnt_idmap *idmap, struct dentry *dentry, } setattr_copy(&nop_mnt_idmap, inode, iattr); if (iattr->ia_valid & ATTR_MODE) - error = posix_acl_chmod(&init_user_ns, dentry, inode->i_mode); + error = posix_acl_chmod(&nop_mnt_idmap, dentry, inode->i_mode); mark_inode_dirty(inode); return error; |