mm: replace multiple dcache flush with flush_dcache_folio()

Simplify the code by using flush_dcache_folio(). Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Muchun Song <[email protected]> Reviewed-by: Mike Kravetz <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: David Rientjes <[email protected]> Cc: Fam Zheng <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Lars Persson <[email protected]> Cc: Peter Xu <[email protected]> Cc: Xiongchun Duan <[email protected]> Cc: Zi Yan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
DatumSystems · Mar 22, 2022 · 3150be8 · 3150be8
1 parent 7c25a0b
commit 3150be8
Showing 1 changed file with 2 additions and 6 deletions.
diff --git a/mm/migrate.c b/mm/migrate.c
@@ -916,12 +916,8 @@ static int move_to_new_page(struct page *newpage, struct page *page,
 		if (!PageMappingFlags(page))
 			page->mapping = NULL;
 
-		if (likely(!is_zone_device_page(newpage))) {
-			int i, nr = compound_nr(newpage);
-
-			for (i = 0; i < nr; i++)
-				flush_dcache_page(newpage + i);
-		}
+		if (likely(!is_zone_device_page(newpage)))
+			flush_dcache_folio(page_folio(newpage));
 	}
 out:
 	return rc;