[40/88] ARM: 7772/1: Fix missing flush_kernel_dcache_page() for noMMU

[Steven Rostedt]

3.6.11.7-rc1 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Simon Baatz <gmbnomis@xxxxxxxxx>

[ Upstream commit 63384fd0b1509acf522a8a8fcede09087eedb7df ]

Commit 1bc3974 (ARM: 7755/1: handle user space mapped pages in
flush_kernel_dcache_page) moved the implementation of
flush_kernel_dcache_page() into mm/flush.c but did not implement it
on noMMU ARM.

Signed-off-by: Simon Baatz <gmbnomis@xxxxxxxxx>
Acked-by: Kevin Hilman <khilman@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 3.2+: 1bc3974: ARM: 7755/1
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 arch/arm/mm/nommu.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index d51225f..eb5293a 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -57,6 +57,12 @@ void flush_dcache_page(struct page *page)
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
+void flush_kernel_dcache_page(struct page *page)
+{
+	__cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);
+}
+EXPORT_SYMBOL(flush_kernel_dcache_page);
+
 void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 		       unsigned long uaddr, void *dst, const void *src,
 		       unsigned long len)
-- 
1.7.10.4


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/