[PATCH v2 5/6] mm/filemap: reinitialize folio->_mapcount directly

David Hildenbrand
2024-05-29T11:19:21Z

Let's get rid of the page_mapcount_reset() call and simply reinitialize
folio->_mapcount directly.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
mm/filemap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index ba06237b942d6..9fe5c02ae92e7 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -177,7 +177,7 @@ static void filemap_unaccount_folio(struct address_space *mapping,
* and we'd rather not leak it: if we're wrong,
* another bad page check should catch it later.
*/
- page_mapcount_reset(&folio->page);
+ atomic_set(&folio->_mapcount, -1);
folio_ref_sub(folio, mapcount);
}
}
--
2.45.1