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-rw-r--r--arch/sh/mm/cache-sh7705.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c
index 045abdf078f5..2808b580d984 100644
--- a/arch/sh/mm/cache-sh7705.c
+++ b/arch/sh/mm/cache-sh7705.c
@@ -3,11 +3,11 @@
*
* Copyright (C) 1999, 2000 Niibe Yutaka
* Copyright (C) 2004 Alex Song
+ * Copyright (C) 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
- *
*/
#include <linux/init.h>
#include <linux/mman.h>
@@ -51,7 +51,6 @@ static inline void cache_wback_all(void)
if ((data & v) == v)
ctrl_outl(data & ~v, addr);
-
}
addrstart += cpu_data->dcache.way_incr;
@@ -128,7 +127,11 @@ static void __flush_dcache_page(unsigned long phys)
*/
void flush_dcache_page(struct page *page)
{
- if (test_bit(PG_mapped, &page->flags))
+ struct address_space *mapping = page_mapping(page);
+
+ if (mapping && !mapping_mapped(mapping))
+ set_bit(PG_dcache_dirty, &page->flags);
+ else
__flush_dcache_page(PHYSADDR(page_address(page)));
}