sched, numa, mm/mpol: Add_MPOL_F_HOME

sched, numa, mm/mpol: Add_MPOL_F_HOME

Add MPOL_F_HOME, to implement multi-stage home node binding.

Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Suggested-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Turner <pjt@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-ec1gnZa9xaqwlsSjsfqjyxcl@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>