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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-01-11 17:28:55 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-03 09:32:56 +0300 |
| commit | 65a689f35ad7ebbfb79f429c1bc290b042ebb10b (patch) | |
| tree | bfbad9e604a1b7e65841ddab33d4ae445f91e011 /mm/page_alloc.c | |
| parent | 4d510f3da4c216d4c2695395f67aec38e2aa6cc7 (diff) | |
| download | linux-65a689f35ad7ebbfb79f429c1bc290b042ebb10b.tar.xz | |
page_alloc: use folio fields directly
Rmove the uses of compound_mapcount_ptr(), head_compound_mapcount() and
subpages_mapcount_ptr()
Link: https://lkml.kernel.org/r/20230111142915.1001531-10-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b224c2132ed1..f15e0e15243f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -779,8 +779,8 @@ static void prep_compound_head(struct page *page, unsigned int order) set_compound_page_dtor(page, COMPOUND_PAGE_DTOR); set_compound_order(page, order); - atomic_set(compound_mapcount_ptr(page), -1); - atomic_set(subpages_mapcount_ptr(page), 0); + atomic_set(&folio->_entire_mapcount, -1); + atomic_set(&folio->_nr_pages_mapped, 0); atomic_set(&folio->_pincount, 0); } @@ -1309,12 +1309,12 @@ static int free_tail_pages_check(struct page *head_page, struct page *page) switch (page - head_page) { case 1: /* the first tail page: these may be in place of ->mapping */ - if (unlikely(head_compound_mapcount(head_page))) { - bad_page(page, "nonzero compound_mapcount"); + if (unlikely(folio_entire_mapcount(folio))) { + bad_page(page, "nonzero entire_mapcount"); goto out; } - if (unlikely(atomic_read(subpages_mapcount_ptr(head_page)))) { - bad_page(page, "nonzero subpages_mapcount"); + if (unlikely(atomic_read(&folio->_nr_pages_mapped))) { + bad_page(page, "nonzero nr_pages_mapped"); goto out; } if (unlikely(atomic_read(&folio->_pincount))) { |