diff options
| -rw-r--r-- | include/linux/pagemap.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index f968b36ad771..a73c928e1d74 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -817,6 +817,17 @@ static inline loff_t folio_file_pos(struct folio *folio) return page_file_offset(&folio->page); } +/* + * Get the offset in PAGE_SIZE (even for hugetlb folios). + * (TODO: hugetlb folios should have ->index in PAGE_SIZE) + */ +static inline pgoff_t folio_pgoff(struct folio *folio) +{ + if (unlikely(folio_test_hugetlb(folio))) + return hugetlb_basepage_index(&folio->page); + return folio->index; +} + extern pgoff_t linear_hugepage_index(struct vm_area_struct *vma, unsigned long address); |