[PATCH v1 13/18] mm/filemap: use folio_mapcount() in filemap_unaccount_folio()

[David Hildenbrand]

We want to limit the use of page_mapcount() to the places where it is
absolutely necessary.

Let's use folio_mapcount() instead of filemap_unaccount_folio().

No functional change intended, because we're only dealing with small
folios.

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

diff --git a/mm/filemap.c b/mm/filemap.c
index c668e11cd6ef..d4aa82ad5b59 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -168,7 +168,7 @@ static void filemap_unaccount_folio(struct address_space 
*mapping,
                add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
 
                if (mapping_exiting(mapping) && !folio_test_large(folio)) {
-                       int mapcount = page_mapcount(&folio->page);
+                       int mapcount = folio_mapcount(folio);
 
                        if (folio_ref_count(folio) >= mapcount + 2) {
                                /*
-- 
2.44.0