From 39e688a94b94eaba768b1494e19e96f828fc2688 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 5 Mar 2007 19:46:47 +0900 Subject: sh: Revert lazy dcache writeback changes. These ended up causing too many problems on older parts, revert for now.. Signed-off-by: Paul Mundt --- arch/sh/mm/cache-sh4.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'arch/sh/mm/cache-sh4.c') diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index e0cd4b7f4aeb..981b04089055 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -237,20 +237,10 @@ static inline void flush_cache_4096(unsigned long start, /* * Write back & invalidate the D-cache of the page. * (To avoid "alias" issues) - * - * This uses a lazy write-back on UP, which is explicitly - * disabled on SMP. */ void flush_dcache_page(struct page *page) { -#ifndef CONFIG_SMP - struct address_space *mapping = page_mapping(page); - - if (mapping && !mapping_mapped(mapping)) - set_bit(PG_dcache_dirty, &page->flags); - else -#endif - { + if (test_bit(PG_mapped, &page->flags)) { unsigned long phys = PHYSADDR(page_address(page)); unsigned long addr = CACHE_OC_ADDRESS_ARRAY; int i, n; -- cgit v1.2.1