This cleans up the ia32 compat ptrace code to use shared code from
native ptrace for the implementation guts of debug register access.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>