1. 5c48b10 um: take arch/um/sys-x86 to arch/x86/um by Al Viro · 13 years ago[Renamed from arch/um/sys-x86/shared/sysdep/skas_ptrace.h]
  2. c75361b um: merge skas_ptrace.h 32/64bit variants by Al Viro · 13 years ago
  3. 858ba94 um: merge arch/um/sys-{i386,x86_64}/shared by Al Viro · 13 years ago