- PTRACE_GETREGS/PTRACE_PUTREGS regset selection cleanup

- Another initial cleanup - more to follow - to the fault handling code.

- Other minor cleanups and corrections.
Merge branch 'x86/cleanups' into x86/mm

Merge recent cleanups to the x86 MM code to resolve a conflict.

Conflicts:
	arch/x86/mm/fault.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>