diff options
| -rw-r--r-- | include/linux/mm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index c25ce6992951..8fa4d78bcc09 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1232,7 +1232,7 @@ static inline int page_mapcount(struct page *page) int mapcount = atomic_read(&page->_mapcount) + 1; /* Handle page_has_type() pages */ - if (mapcount < 0) + if (mapcount < PAGE_MAPCOUNT_RESERVE + 1) mapcount = 0; if (unlikely(PageCompound(page))) mapcount += folio_entire_mapcount(page_folio(page)); |