Merge remote-tracking branch 'origin/x86/espfix' into x86/vdso

Merge x86/espfix into x86/vdso, due to changes in the vdso setup code
that otherwise cause conflicts.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

diff --cc arch/x86/kernel/hpet.c
Simple merge

diff --cc include/linux/mm.h
Simple merge