diff options
Diffstat (limited to 'mm/mremap.c')
| -rw-r--r-- | mm/mremap.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index 0d4948b720e2..60f6b8d0d5f0 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -237,6 +237,8 @@ static int move_ptes(struct pagetable_move_control *pmc, for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE, new_pte++, new_addr += PAGE_SIZE) { + VM_WARN_ON_ONCE(!pte_none(*new_pte)); + if (pte_none(ptep_get(old_pte))) continue; @@ -1190,10 +1192,6 @@ static int copy_vma_and_data(struct vma_remap_struct *vrm, fixup_hugetlb_reservations(vma); - /* Tell pfnmap has moved from this vma */ - if (unlikely(vma->vm_flags & VM_PFNMAP)) - untrack_pfn_clear(vma); - *new_vma_ptr = new_vma; return err; } |