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mm/filemap: reinitialize folio->_mapcount directly

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

Link: https://lkml.kernel.org/r/20240529111904.2069608-6-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>	[zram/zsmalloc workloads]
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand 2024-05-29 13:19:03 +02:00 committed by Andrew Morton
parent e4d970acfb
commit 9bf46441ad
1 changed files with 1 additions and 1 deletions
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mm/filemap.c
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@ -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);
}
}