[PATCH] x86: make "memtest" like "memtest=17"

[Yinghai Lu <yinghai@kernel.org>]

Impact: make boot command line memtest do one loop

so don't need to guess many pattern in one loop

Signed-off-by: Yinghai Lu <yinghai@kernel.org>

---
 arch/x86/mm/memtest.c |    3 +++
 1 file changed, 3 insertions(+)

Index: linux-2.6/arch/x86/mm/memtest.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/memtest.c
+++ linux-2.6/arch/x86/mm/memtest.c
@@ -100,6 +100,9 @@ static int __init parse_memtest(char *ar
 {
 	if (arg)
 		memtest_pattern = simple_strtoul(arg, NULL, 0);
+	else
+		memtest_pattern = ARRAY_SIZE(patterns);
+
 	return 0;
 }