diff options
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index ab467ee58341..b7a2af5c896e 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -231,32 +231,6 @@ struct user_namespace *mnt_idmap_owner(const struct mnt_idmap *idmap) EXPORT_SYMBOL_GPL(mnt_idmap_owner); /** - * mnt_user_ns - retrieve owner of an idmapped mount - * @mnt: the relevant vfsmount - * - * This helper will go away once the conversion to use struct mnt_idmap - * everywhere has finished at which point the helper will be unexported. - * - * Only code that needs to perform permission checks based on the owner of the - * idmapping will get access to it. All other code will solely rely on - * idmappings. This will get us type safety so it's impossible to conflate - * filesystems idmappings with mount idmappings. - * - * Return: The owner of the idmapped. - */ -struct user_namespace *mnt_user_ns(const struct vfsmount *mnt) -{ - struct mnt_idmap *idmap = mnt_idmap(mnt); - - /* Return the actual owner of the filesystem instead of the nop. */ - if (idmap == &nop_mnt_idmap && - !initial_idmapping(mnt->mnt_sb->s_user_ns)) - return mnt->mnt_sb->s_user_ns; - return mnt_idmap_owner(idmap); -} -EXPORT_SYMBOL_GPL(mnt_user_ns); - -/** * alloc_mnt_idmap - allocate a new idmapping for the mount * @mnt_userns: owning userns of the idmapping * |