diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-12-16 11:06:33 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-10-18 07:49:36 -0400 |
| commit | 08b0b0059bf1c2e8637f724cc7cc4d29b1e808de (patch) | |
| tree | 795315583bdbd72e41a2509662d48f377d477893 /include/asm-generic | |
| parent | 646010009d3541b8cb4f803dcb4b8d0da2f22579 (diff) | |
mm: Add flush_dcache_folio()
This is a default implementation which calls flush_dcache_page() on
each page in the folio. If architectures can do better, they should
implement their own version of it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/cacheflush.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h index 4a674db4e1fa..fedc0dfa4877 100644 --- a/include/asm-generic/cacheflush.h +++ b/include/asm-generic/cacheflush.h @@ -49,9 +49,15 @@ static inline void flush_cache_page(struct vm_area_struct *vma, static inline void flush_dcache_page(struct page *page) { } + +static inline void flush_dcache_folio(struct folio *folio) { } #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO #endif +#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO +void flush_dcache_folio(struct folio *folio); +#endif #ifndef flush_dcache_mmap_lock static inline void flush_dcache_mmap_lock(struct address_space *mapping) |