Linux 3.4.66

Conflicts:
	arch/ia64/mm/contig.c
	arch/ia64/mm/discontig.c
	arch/parisc/mm/init.c
	arch/powerpc/kernel/iommu.c
	arch/powerpc/kernel/vio.c
	arch/powerpc/lib/checksum_64.S
	arch/sparc/kernel/entry.S
	arch/sparc/kernel/ktlb.S
	arch/sparc/kernel/trampoline_64.S
	arch/sparc/lib/ksyms.c
	arch/tile/include/asm/percpu.h
	arch/unicore32/mm/init.c