1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1ce006a24f49..9eef64f23a75 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1433,6 +1433,13 @@ struct super_block {
         struct hlist_head s_pins;
 
         /*
+         * Owning user namespace and default context in which to
+         * interpret filesystem uids, gids, quotas, device nodes,
+         * xattrs and security labels.
+         */
+        struct user_namespace *s_user_ns;
+
+        /*
          * Keep the lru lists last in the structure so they always sit on their
          * own individual cachelines.
          */
@@ -2056,6 +2063,11 @@ void deactivate_locked_super(struct super_block *sb);
 int set_anon_super(struct super_block *s, void *data);
 int get_anon_bdev(dev_t *);
 void free_anon_bdev(dev_t);
+struct super_block *sget_userns(struct file_system_type *type,
+                        int (*test)(struct super_block *,void *),
+                        int (*set)(struct super_block *,void *),
+                        int flags, struct user_namespace *user_ns,
+                        void *data);
 struct super_block *sget(struct file_system_type *type,
                         int (*test)(struct super_block *,void *),
                         int (*set)(struct super_block *,void *),