Revert "mm: do not collapse stack gap into THP"

[mirror_ubuntu-zesty-kernel.git] / mm / khugepaged.c

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 16379e5943a6c2d09b825e5b9d5e67c7c69ffcda..77ae3239c3de17bfbf7ba29b56a5cb270611cfd8 100644 (file)
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -859,10 +859,6 @@ static int hugepage_vma_revalidate(struct mm_struct *mm, unsigned long address,
                return SCAN_ADDRESS_RANGE;
        if (!hugepage_vma_check(vma))
                return SCAN_VMA_CHECK;
-
-       /* never try to collapse stack gap */
-       if (stack_guard_area(vma, hstart) || stack_guard_area(vma, hend))
-               return SCAN_ADDRESS_RANGE;
        return 0;
 }