Linux 3.4.20

Conflicts:
	arch/m68k/include/asm/signal.h
	arch/s390/include/asm/compat.h
	arch/s390/include/asm/ptrace.h
	arch/s390/kernel/compat_signal.c
	arch/s390/kernel/signal.c
	arch/s390/mm/gup.c