From: Bodo Stroesser, mostly:

Gets rid of all inclusions of {sys,linux,asm}/ptrace.h since their effects and
contents are somewhat distro- and architecture-dependent.
arch/um/sysdep/ptrace_user is now responsible for providing the system's
ptrace interfaces to UML.

As such, it is a purely userspace header, and this exposed a couple of places
where kernel files were including it.  One of them needed MAX_REG_OFFSET, so
this was provided by adding a new generated header, user-constants.h, which
includes this.

Also, changed PTRACE_{PEEK,POKE}_USER to _USR since that seems to be more
standard.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>