mm/gup: check for protnone only if it is a PTE entry

[karo-tx-linux.git] / mm / gup.c

diff --git a/mm/gup.c b/mm/gup.c
index 1e67461b2733095a90a39e5c21c75e76651c728e..94fab8fa432b2f46ccb0c0238a17cb750489896e 100644 (file)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -272,8 +272,6 @@ struct page *follow_page_mask(struct vm_area_struct *vma,
                        return page;
                return no_page_table(vma, flags);
        }
-       if ((flags & FOLL_NUMA) && pmd_protnone(*pmd))
-               return no_page_table(vma, flags);
        if (pmd_devmap(*pmd)) {
                ptl = pmd_lock(mm, pmd);
                page = follow_devmap_pmd(vma, address, pmd, flags);
@@ -284,6 +282,9 @@ struct page *follow_page_mask(struct vm_area_struct *vma,
        if (likely(!pmd_trans_huge(*pmd)))
                return follow_page_pte(vma, address, pmd, flags);
 
+       if ((flags & FOLL_NUMA) && pmd_protnone(*pmd))
+               return no_page_table(vma, flags);
+
        ptl = pmd_lock(mm, pmd);
        if (unlikely(!pmd_trans_huge(*pmd))) {
                spin_unlock(ptl);