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| author | David Hildenbrand <david@redhat.com> | 2024-05-29 13:19:04 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-07-04 04:30:17 +0200 |
| commit | 11d5401b011e3557894d824dac210f0b18cc3911 (patch) | |
| tree | 2ee18482fd5bc3f40d0296cbbb590963b5ba4a98 /mm/mm_init.c | |
| parent | mm/filemap: reinitialize folio->_mapcount directly (diff) | |
| download | linux-11d5401b011e3557894d824dac210f0b18cc3911.tar.xz linux-11d5401b011e3557894d824dac210f0b18cc3911.zip | |
mm/mm_init: initialize page->_mapcount directly in __init_single_page()
Let's simply reinitialize the page->_mapcount directly. We can now get
rid of page_mapcount_reset().
Link: https://lkml.kernel.org/r/20240529111904.2069608-7-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>
Diffstat (limited to 'mm/mm_init.c')
| -rw-r--r-- | mm/mm_init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c index d3a222b92029..5d150d412920 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -569,7 +569,7 @@ void __meminit __init_single_page(struct page *page, unsigned long pfn, mm_zero_struct_page(page); set_page_links(page, zone, nid, pfn); init_page_count(page); - page_mapcount_reset(page); + atomic_set(&page->_mapcount, -1); page_cpupid_reset_last(page); page_kasan_tag_reset(page); |