Merge branch 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

Merge branch 'x86-ptrace-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, ptrace: Remove set_stopped_child_used_math() in [x]fpregs_set
  x86, ptrace: Simplify xstateregs_get()
  ptrace: Fix ptrace_regset() comments and diagnose errors specifically
  parisc: Disable CONFIG_HAVE_ARCH_TRACEHOOK
  ptrace: Add support for generic PTRACE_GETREGSET/PTRACE_SETREGSET
  x86, ptrace: regset extensions to support xstate