[PATCH] namespaces: utsname: introduce temporary helpers

Define utsname() and init_utsname() which return &system_utsname.  Users of
system_utsname will be changed to use these helpers, after which
system_utsname will disappear.
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Andrey Savochkin <saw@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/utsname.h

@@ -32,5 +32,15 @@ struct new_utsname {
 
 extern struct new_utsname system_utsname;
 
+static inline struct new_utsname *utsname(void)
+{
+	return &system_utsname;
+}
+
+static inline struct new_utsname *init_utsname(void)
+{
+	return &system_utsname;
+}
+
 extern struct rw_semaphore uts_sem;
 #endif