diff options
Diffstat (limited to 'mm/page_vma_mapped.c')
| -rw-r--r-- | mm/page_vma_mapped.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c index 49e0d28f0379..e0b368e545ed 100644 --- a/mm/page_vma_mapped.c +++ b/mm/page_vma_mapped.c @@ -73,20 +73,22 @@ static bool map_pte(struct page_vma_mapped_walk *pvmw, spinlock_t **ptlp) } /** - * check_pte - check if @pvmw->page is mapped at the @pvmw->pte - * @pvmw: page_vma_mapped_walk struct, includes a pair pte and page for checking + * check_pte - check if [pvmw->pfn, @pvmw->pfn + @pvmw->nr_pages) is + * mapped at the @pvmw->pte + * @pvmw: page_vma_mapped_walk struct, includes a pair pte and pfn range + * for checking * - * page_vma_mapped_walk() found a place where @pvmw->page is *potentially* + * page_vma_mapped_walk() found a place where pfn range is *potentially* * mapped. check_pte() has to validate this. * * pvmw->pte may point to empty PTE, swap PTE or PTE pointing to * arbitrary page. * * If PVMW_MIGRATION flag is set, returns true if @pvmw->pte contains migration - * entry that points to @pvmw->page or any subpage in case of THP. + * entry that points to [pvmw->pfn, @pvmw->pfn + @pvmw->nr_pages) * * If PVMW_MIGRATION flag is not set, returns true if pvmw->pte points to - * pvmw->page or any subpage in case of THP. + * [pvmw->pfn, @pvmw->pfn + @pvmw->nr_pages) * * Otherwise, return false. * |