Merge branch 'stable/bug-fixes-for-rc5' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index ce22a250926f59711f51e634a565cb90256d969c..607098d47e745b37d375c0aa49d63e5507a9f4b0 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3396,7 +3396,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
         * run pte_offset_map on the pmd, if an huge pmd could
         * materialize from under us from a different thread.
         */
-       if (unlikely(__pte_alloc(mm, vma, pmd, address)))
+       if (unlikely(pmd_none(*pmd)) && __pte_alloc(mm, vma, pmd, address))
                return VM_FAULT_OOM;
        /* if an huge pmd materialized from under us just retry later */
        if (unlikely(pmd_trans_huge(*pmd)))