diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/rmap.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h index aa682a2a93ce..a6bd1f0a183d 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -208,7 +208,14 @@ void hugepage_add_new_anon_rmap(struct page *, struct vm_area_struct *, static inline void __page_dup_rmap(struct page *page, bool compound) { - atomic_inc(compound ? compound_mapcount_ptr(page) : &page->_mapcount); + if (compound) { + struct folio *folio = (struct folio *)page; + + VM_BUG_ON_PAGE(compound && !PageHead(page), page); + atomic_inc(&folio->_entire_mapcount); + } else { + atomic_inc(&page->_mapcount); + } } static inline void page_dup_file_rmap(struct page *page, bool compound) |