[PATCH] kmemcheck: use set_memory_4k() on x86_64 only

[Vegard Nossum]

x86_32 already disables PSE capabilities and is fine. We need this to
avoid the BUG in cache-flushing SMP call.

Signed-off-by: Vegard Nossum <vegard.nossum@xxxxxxxxx>
---
 arch/x86/mm/kmemcheck/kmemcheck.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
index 5a08a70..d649aa7 100644
--- a/arch/x86/mm/kmemcheck/kmemcheck.c
+++ b/arch/x86/mm/kmemcheck/kmemcheck.c
@@ -295,7 +295,9 @@ void kmemcheck_hide_pages(struct page *p, unsigned int n)
 {
 	unsigned int i;
 
+#ifdef CONFIG_X86_64
 	set_memory_4k((unsigned long) page_address(p), n);
+#endif
 
 	for (i = 0; i < n; ++i) {
 		unsigned long address;
-- 
1.5.5.1

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