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Diffstat (limited to 'mm/hmm.c')
-rw-r--r--mm/hmm.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/hmm.c b/mm/hmm.c
index 842e26599238..af71aac3140e 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -300,7 +300,8 @@ static int hmm_vma_handle_pte(struct mm_walk *walk, unsigned long addr,
* Since each architecture defines a struct page for the zero page, just
* fall through and treat it like a normal page.
*/
- if (pte_special(pte) && !pte_devmap(pte) &&
+ if (!vm_normal_page(walk->vma, addr, pte) &&
+ !pte_devmap(pte) &&
!is_zero_pfn(pte_pfn(pte))) {
if (hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, 0)) {
pte_unmap(ptep);
@@ -416,7 +417,6 @@ static int hmm_vma_walk_pud(pud_t *pudp, unsigned long start, unsigned long end,
struct hmm_range *range = hmm_vma_walk->range;
unsigned long addr = start;
pud_t pud;
- int ret = 0;
spinlock_t *ptl = pud_trans_huge_lock(pudp, walk->vma);
if (!ptl)
@@ -465,7 +465,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, unsigned long start, unsigned long end,
out_unlock:
spin_unlock(ptl);
- return ret;
+ return 0;
}
#else
#define hmm_vma_walk_pud NULL
@@ -518,7 +518,7 @@ static int hmm_vma_walk_test(unsigned long start, unsigned long end,
struct hmm_range *range = hmm_vma_walk->range;
struct vm_area_struct *vma = walk->vma;
- if (!(vma->vm_flags & (VM_IO | VM_PFNMAP | VM_MIXEDMAP)) &&
+ if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)) &&
vma->vm_flags & VM_READ)
return 0;