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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-01-11 14:28:50 +0000 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2023-02-02 22:32:55 -0800 |
| commit | b14224fbea62e5bffd680613376fe1268f4103ba (patch) | |
| tree | 37e2e52f09d8e1ddd8d661fd57efa1d349bf35ff /include/linux/mm.h | |
| parent | doc: clarify refcount section by referring to folios & pages (diff) | |
| download | wireguard-linux-b14224fbea62e5bffd680613376fe1268f4103ba.tar.xz wireguard-linux-b14224fbea62e5bffd680613376fe1268f4103ba.zip | |
mm: convert total_compound_mapcount() to folio_total_mapcount()
Instead of enforcing that the argument must be a head page by naming,
enforce it with the compiler by making it a folio. Also rename the
counter in struct folio from _compound_mapcount to _entire_mapcount.
Link: https://lkml.kernel.org/r/20230111142915.1001531-5-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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 2bdd08a5b8b4..bdf83e75bcd6 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -871,7 +871,7 @@ static inline int page_mapcount(struct page *page) return head_compound_mapcount(page) + mapcount; } -int total_compound_mapcount(struct page *head); +int folio_total_mapcount(struct folio *folio); /** * folio_mapcount() - Calculate the number of mappings of this folio. @@ -888,14 +888,14 @@ static inline int folio_mapcount(struct folio *folio) { if (likely(!folio_test_large(folio))) return atomic_read(&folio->_mapcount) + 1; - return total_compound_mapcount(&folio->page); + return folio_total_mapcount(folio); } static inline int total_mapcount(struct page *page) { if (likely(!PageCompound(page))) return atomic_read(&page->_mapcount) + 1; - return total_compound_mapcount(compound_head(page)); + return folio_total_mapcount(page_folio(page)); } static inline bool folio_large_is_mapped(struct folio *folio) |