Refresh kernel NUMA up to 3.16.

Primarily merged:

numa,sched,mm: pseudo-interleaving for automatic NUMA balancing
https://lkml.org/lkml/2014/1/27/459
patch 1 - 9

fix numa vs kvm scalability issue
https://lkml.org/lkml/2014/2/18/677
patch 12/13

sched,numa: reduce page migrations with pseudo-interleaving
http://lwn.net/Articles/594506/
patch 19 - 21

Others are minor bug fixes or performance optimization.

928e881 numa,sched: fix load_to_imbalanced logic inversion
6b8bcaf sched/numa: Fix use of spin_{un}lock_irq() when interrupts are disabled
549d1e1 arch/x86/mm/numa.c: use for_each_memblock()
583366b mm: numa: add migrated transhuge pages to LRU the same way as base pages
ae4ea9b sched/numa: Decay ->wakee_flips instead of zeroing
60356c9 sched/numa: Update migrate_improves/degrades_locality()
e68391a sched/numa: Allow task switch if load imbalance improves
f0b13c2 sched/numa: Do not set preferred_node on migration to a second choice 
node
6b2bd33 sched/numa: Retry placement more frequently when misplaced
2faaa14 sched/numa: Count pages on active node as local
c4eb5c17 sched/numa: Initialize newidle balance stats in sd_numa_init()
dc96100 Documentation/vm/numa_memory_policy.txt: fix wrong document in 
numa_memory_policy.txt
9465ce5 sched/numa: Fix task_numa_free() lockdep splat
57d59d6 numa: use LAST_CPUPID_SHIFT to calculate LAST_CPUPID_MASK
7d7ceb4 mm: numa: recheck for transhuge pages under lock during protection 
changes
401ca1bc8 mm: move mmu notifier call from change_protection to change_pmd_range
d7d1dc6 mm,numa: reorganize change_pmd_range()
30ac9d8 sched/numa: Move task_numa_free() to __put_task_struct()
a5baef2 numa: fix NULL pointer access and memory leak in unregister_one_node()
10ba0f0 sched/numa: Turn some magic numbers into #defines
076738d sched/numa: Rename variables in task_numa_fault()
dd2f060 sched/numa: Do statistics calculation using local variables only
adcc36f sched/numa: Normalize faults_cpu stats and weigh by CPU use
47595e7 sched/numa, mm: Use active_nodes nodemask to limit numa migrations
68f13cb sched/numa: Build per numa_group active node mask from numa_faults_cpu 
statistics
1e41011 sched/numa: Track from which nodes NUMA faults are triggered
ba3b5ff sched/numa: Rename p->numa_faults to numa_faults_memory
63960c0 sched/numa, mm: Remove p->numa_migrate_deferred
-- 
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