s390 core changes:
 - Add -msoft-float to CFLAGS.
 - Remove experimantal tag from cpu hotplug.
 - Allow more than 4GB swap on a single device for 64 bit.
 - Fix race in machine_restart to make sure all cpus entered
   stopped state before reipl.
 - Cleanup: use for_each_online_cpu macro where possible.
 - Add argument brackets to __FD_SET/__FD_CLEAR/__FD_ZERO.
 - Reset cpu_present in smp startup to avoid long delays if only
   one cpu is defined.
 - 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>