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authorChristian Brauner <brauner@kernel.org>2023-01-13 12:49:20 +0100
committerChristian Brauner (Microsoft) <brauner@kernel.org>2023-01-19 09:24:27 +0100
commit13e83a4923bea7c4f2f6714030cb7e56d20ef7e5 (patch)
treef57f12f138ca1d0a5822a5620e9d2d71eeb5534f /fs/ntfs3/xattr.c
parent77435322777d8a8a08264a39111bef94e32b871b (diff)
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/ntfs3/xattr.c')
-rw-r--r--fs/ntfs3/xattr.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 616df209feea..370effca6b2c 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -652,9 +652,11 @@ out:
/*
* ntfs_set_acl - inode_operations::set_acl
*/
-int ntfs_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
+int ntfs_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
struct posix_acl *acl, int type)
{
+ struct user_namespace *mnt_userns = mnt_idmap_owner(idmap);
+
return ntfs_set_acl_ex(mnt_userns, d_inode(dentry), acl, type, false);
}
@@ -697,7 +699,7 @@ int ntfs_init_acl(struct user_namespace *mnt_userns, struct inode *inode,
/*
* ntfs_acl_chmod - Helper for ntfs3_setattr().
*/
-int ntfs_acl_chmod(struct user_namespace *mnt_userns, struct dentry *dentry)
+int ntfs_acl_chmod(struct mnt_idmap *idmap, struct dentry *dentry)
{
struct inode *inode = d_inode(dentry);
struct super_block *sb = inode->i_sb;
@@ -708,7 +710,7 @@ int ntfs_acl_chmod(struct user_namespace *mnt_userns, struct dentry *dentry)
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
- return posix_acl_chmod(mnt_userns, dentry, inode->i_mode);
+ return posix_acl_chmod(idmap, dentry, inode->i_mode);
}
/*