s390 core changes:
 - Rework system call entry cleanup code to fix a potential asynchronous
   interrupt stack overflow if the user stack pointer happens to be in
   the same range as the asynchronous stack.
 - Replace broken schedule_timeout call with msleep.
 - Regenerate default configuration
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>