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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-01-11 14:29:04 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-02 22:32:58 -0800 |
| commit | bad6da64565846ef5ba85b0b685cfde9db0085dc (patch) | |
| tree | c3ef1348eaa9acbb14ffa3cf94bc63ba62d2a0f8 /include/linux/mm.h | |
| parent | 21a000fe97a018c6d25be63892afb4fd8210ab57 (diff) | |
| download | lwn-bad6da64565846ef5ba85b0b685cfde9db0085dc.tar.gz lwn-bad6da64565846ef5ba85b0b685cfde9db0085dc.zip | |
mm: convert set_compound_page_dtor() and set_compound_order() to folios
Replace uses of compound_dtor, compound_order and compound_nr by their
folio equivalents.
Link: https://lkml.kernel.org/r/20230111142915.1001531-19-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 3acf09d5b0bd..836b96e08a14 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -984,8 +984,11 @@ extern compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS]; static inline void set_compound_page_dtor(struct page *page, enum compound_dtor_id compound_dtor) { + struct folio *folio = (struct folio *)page; + VM_BUG_ON_PAGE(compound_dtor >= NR_COMPOUND_DTORS, page); - page[1].compound_dtor = compound_dtor; + VM_BUG_ON_PAGE(!PageHead(page), page); + folio->_folio_dtor = compound_dtor; } static inline void folio_set_compound_dtor(struct folio *folio, @@ -999,9 +1002,11 @@ void destroy_large_folio(struct folio *folio); static inline void set_compound_order(struct page *page, unsigned int order) { - page[1].compound_order = order; + struct folio *folio = (struct folio *)page; + + folio->_folio_order = order; #ifdef CONFIG_64BIT - page[1].compound_nr = 1U << order; + folio->_folio_nr_pages = 1U << order; #endif } |