diff options
Diffstat (limited to 'mm/pagewalk.c')
| -rw-r--r-- | mm/pagewalk.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/pagewalk.c b/mm/pagewalk.c index fa7a3d21a751..2ff3a5bebceb 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -460,7 +460,7 @@ int walk_page_range(struct mm_struct *mm, unsigned long start, } else { /* inside vma */ walk.vma = vma; next = min(end, vma->vm_end); - vma = vma->vm_next; + vma = find_vma(mm, vma->vm_end); err = walk_page_test(start, next, &walk); if (err > 0) { @@ -482,7 +482,15 @@ int walk_page_range(struct mm_struct *mm, unsigned long start, return err; } -/* +/** + * walk_page_range_novma - walk a range of pagetables not backed by a vma + * @mm: mm_struct representing the target process of page table walk + * @start: start address of the virtual address range + * @end: end address of the virtual address range + * @ops: operation to call during the walk + * @pgd: pgd to walk if different from mm->pgd + * @private: private data for callbacks' usage + * * Similar to walk_page_range() but can walk any page tables even if they are * not backed by VMAs. Because 'unusual' entries may be walked this function * will also not lock the PTEs for the pte_entry() callback. This is useful for |