diff options
| -rw-r--r-- | mm/pagewalk.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/mm/pagewalk.c b/mm/pagewalk.c index 9b3db11a4d1d..908ec1577f40 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -479,7 +479,15 @@ 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 |