[PATCH 4/7] mm: Remove ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO

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Current best practice is to reuse the name of the function as a define
to indicate that the function is implemented by the architecture.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 include/linux/cacheflush.h | 4 ++--
 mm/util.c                  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/cacheflush.h b/include/linux/cacheflush.h
index a6189d21f2ba..82136f3fcf54 100644
--- a/include/linux/cacheflush.h
+++ b/include/linux/cacheflush.h
@@ -7,14 +7,14 @@
 struct folio;
 
 #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
-#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO
+#ifndef flush_dcache_folio
 void flush_dcache_folio(struct folio *folio);
 #endif
 #else
 static inline void flush_dcache_folio(struct folio *folio)
 {
 }
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO 0
+#define flush_dcache_folio flush_dcache_folio
 #endif /* ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE */
 
 #endif /* _LINUX_CACHEFLUSH_H */
diff --git a/mm/util.c b/mm/util.c
index cec9327b27b4..39ea7af8171c 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -1124,7 +1124,7 @@ void page_offline_end(void)
 }
 EXPORT_SYMBOL(page_offline_end);
 
-#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO
+#ifndef flush_dcache_folio
 void flush_dcache_folio(struct folio *folio)
 {
 	long i, nr = folio_nr_pages(folio);
-- 
2.39.1





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