Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] locking problem with __cpcmd.
  [S390] don't call handle_mm_fault() if in an atomic context.
  [S390] Fix vmalloc area size calculation.
  [S390] Fix cpu hotplug (missing 'online' attribute).
  [S390] cio: use barrier() in stsch_reset.
  [S390] memory detection misses 128k.