+ dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3.patch added to -mm tree

+ dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3.patch added to -mm tree

[akpm]

The patch titled
     Subject: dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3
has been added to the -mm tree.  Its filename is
     dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3.patch

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------------------------------------------------------
From: Andi Kleen <ak@linux.intel.com>
Subject: dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3

v3: Minor updates from Mel. Change code layout.

Link: http://lkml.kernel.org/r/1476382117-5440-1-git-send-email-andi@firstfloor.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mprotect.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff -puN mm/mprotect.c~dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3 mm/mprotect.c
--- a/mm/mprotect.c~dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3
+++ a/mm/mprotect.c
@@ -70,16 +70,16 @@ static unsigned long change_pte_range(st
 	pte_t *pte, oldpte;
 	spinlock_t *ptl;
 	unsigned long pages = 0;
-	int target_node = -1;
+	int target_node = NUMA_NO_NODE;
 
 	pte = lock_pte_protection(vma, pmd, addr, prot_numa, &ptl);
 	if (!pte)
 		return 0;
 
-	if (prot_numa &&
-	    !(vma->vm_flags & VM_SHARED) &&
+	/* Get target node for single threaded private VMAs */
+	if (prot_numa && !(vma->vm_flags & VM_SHARED) &&
 	    atomic_read(&vma->vm_mm->mm_users) == 1)
-	    target_node = cpu_to_node(raw_smp_processor_id());
+		target_node = numa_node_id();
 
 	arch_enter_lazy_mmu_mode();
 	do {
_

Patches currently in -mm which might be from ak@linux.intel.com are

dont-touch-single-threaded-ptes-which-are-on-the-right-node.patch
dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3.patch