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Message-ID: <20240527141454.113132-6-david@redhat.com>
Date: Mon, 27 May 2024 16:14:53 +0200
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-mm@...ck.org,
David Hildenbrand <david@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
Mike Rapoport <rppt@...nel.org>,
Minchan Kim <minchan@...nel.org>,
Sergey Senozhatsky <senozhatsky@...omium.org>,
Hyeonggon Yoo <42.hyeyoo@...il.com>
Subject: [PATCH v1 5/6] mm/filemap: reinitialize folio->_mapcount directly
Let's get rid of the page_mapcount_reset() call and simply reinitialize
folio->_mapcount directly.
Signed-off-by: David Hildenbrand <david@...hat.com>
---
mm/filemap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/filemap.c b/mm/filemap.c
index 382c3d06bfb1..c4ac7289e88a 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
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