Merge remote-tracking branch 'stable/linux-3.10.y' into linux-linaro-lsk

Conflicts:
	arch/arm64/kernel/smp.c

Signed-off-by: Alex Shi <alex.shi@linaro.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1ae8de26e9b..07bb1feaeed 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -945,6 +945,13 @@ void task_numa_work(struct callback_head *work)
 		if (vma->vm_end - vma->vm_start < HPAGE_SIZE)
 			continue;
 
+		/*
+		 * Skip inaccessible VMAs to avoid any confusion between
+		 * PROT_NONE and NUMA hinting ptes
+		 */
+		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
+			continue;
+
 		do {
 			start = max(start, vma->vm_start);
 			end = ALIGN(start + (pages << PAGE_SHIFT), HPAGE_SIZE);