From: Martin Schwidefsky <schwidefsky@de.ibm.com>

s390 core changes:
 - Make use of the ipte instruction for ptep_set_access_flags
 - Fix atomic64_inc_and_test primitive as well.
 - Fix return type handler for __copy_in_user.
 - New default configuration.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>