This check was introduced as part of
6f4576e3687 - mempolicy: apply page table walker on queue_pages_range()
which got duplicated by
48684a65b4e - mm: pagewalk: fix misbehavior of walk_page_range for vma(VM_PFNMAP)
by reintroducing it earlier on queue_page_test_walk()
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Aristeu Rozanski <aris@xxxxxxxxxx>
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 99d4c1d..9885d07 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -608,9 +608,6 @@ static int queue_pages_test_walk(unsigned long start, unsigned long end,
qp->prev = vma;
- if (vma->vm_flags & VM_PFNMAP)
- return 1;
-
if (flags & MPOL_MF_LAZY) {
/* Similar to task_numa_work, skip inaccessible VMAs */
if (vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE))
--
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