1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index cc4f45361dbb..8178156711f9 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -36,6 +36,9 @@ static inline void put_user_ns(struct user_namespace *ns)
                 kref_put(&ns->kref, free_user_ns);
 }
 
+uid_t user_ns_map_uid(struct user_namespace *to, const struct cred *cred, uid_t uid);
+gid_t user_ns_map_gid(struct user_namespace *to, const struct cred *cred, gid_t gid);
+
 #else
 
 static inline struct user_namespace *get_user_ns(struct user_namespace *ns)
@@ -52,6 +55,17 @@ static inline void put_user_ns(struct user_namespace *ns)
 {
 }
 
+static inline uid_t user_ns_map_uid(struct user_namespace *to,
+        const struct cred *cred, uid_t uid)
+{
+        return uid;
+}
+static inline gid_t user_ns_map_gid(struct user_namespace *to,
+        const struct cred *cred, gid_t gid)
+{
+        return gid;
+}
+
 #endif
 
 #endif /* _LINUX_USER_H */