s390 core changes:
 - Fix a race condition between kernel thread creation and preemption.
 - Fix idal_is_needed for the border case 0x7ffff000.
 - Get rid of compiler warnings in compat_signal.c and profile.c.
 - 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>