path: root/arch/sparc/mm
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authorDavid S. Miller <davem@davemloft.net>2009-10-12 03:20:57 -0700
committerDavid S. Miller <davem@davemloft.net>2009-10-12 03:20:57 -0700
commit1a78cedb998027ed46d8630b319db8fa678d38f0 (patch)
tree4069a8517b0f2f4255e8af2f60000e791268303c /arch/sparc/mm
parentde23cf3c42618998a7165364f987267ac9b298f0 (diff)
sparc64: Fix D-cache flushing on swapin from SW devices.
Thanks to tip form ARM folks and Russell King. If flush_dcache_page() occurs on a swapin it will have a mapping and we'll try to defer the flush by setting the dirty bit. But when it hits update_dcache_page() we won't flush because the page won't have a mapping any more. So remove the mapping requirement in flush_dcache(). Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm')
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index a70a5e1904d..1886d37d411 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -265,7 +265,7 @@ static void flush_dcache(unsigned long pfn)
struct page *page;
page = pfn_to_page(pfn);
- if (page && page_mapping(page)) {
+ if (page) {
unsigned long pg_flags;
pg_flags = page->flags;