Merge branch 'signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: hookup sys_rt_tgsigqueueinfo
  signals: implement sys_rt_tgsigqueueinfo
  signals: split do_tkill