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| author | Christian Brauner <brauner@kernel.org> | 2023-01-13 12:49:11 +0100 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 09:24:02 +0100 |
| commit | c1632a0f11209338fc300c66252bcc4686e609e8 (patch) | |
| tree | 0a17d3844bb4fbdabc565f022a8da3bed1fe361a /fs/adfs | |
| parent | abf08576afe31506b812c8c1be9714f78613f300 (diff) | |
| download | linux-c1632a0f11209338fc300c66252bcc4686e609e8.tar.gz | |
fs: port ->setattr() 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/adfs')
| -rw-r--r-- | fs/adfs/adfs.h | 2 | ||||
| -rw-r--r-- | fs/adfs/inode.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h index 06b7c92343ad1..223f0283d20f9 100644 --- a/fs/adfs/adfs.h +++ b/fs/adfs/adfs.h @@ -144,7 +144,7 @@ struct adfs_discmap { /* Inode stuff */ struct inode *adfs_iget(struct super_block *sb, struct object_info *obj); int adfs_write_inode(struct inode *inode, struct writeback_control *wbc); -int adfs_notify_change(struct user_namespace *mnt_userns, struct dentry *dentry, +int adfs_notify_change(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *attr); /* map.c */ diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c index ee22278b0cfc0..c3ac613d09757 100644 --- a/fs/adfs/inode.c +++ b/fs/adfs/inode.c @@ -294,7 +294,7 @@ out: * later. */ int -adfs_notify_change(struct user_namespace *mnt_userns, struct dentry *dentry, +adfs_notify_change(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *attr) { struct inode *inode = d_inode(dentry); @@ -302,7 +302,7 @@ adfs_notify_change(struct user_namespace *mnt_userns, struct dentry *dentry, unsigned int ia_valid = attr->ia_valid; int error; - error = setattr_prepare(&init_user_ns, dentry, attr); + error = setattr_prepare(&nop_mnt_idmap, dentry, attr); /* * we can't change the UID or GID of any file - |