[tip:x86/memtest] x86: make "memtest" like "memtest=17"

[Yinghai Lu <yinghai@kernel.org>]

Commit-ID:  d1a8e7792047f7dca7eb5759250e2c12800bf262
Gitweb:     http://git.kernel.org/tip/d1a8e7792047f7dca7eb5759250e2c12800bf262
Author:     "Yinghai Lu" <yinghai@kernel.org>
AuthorDate: Fri, 6 Mar 2009 03:12:50 -0800
Commit:     Ingo Molnar <mingo@elte.hu>
CommitDate: Fri, 6 Mar 2009 12:16:43 +0100

x86: make "memtest" like "memtest=17"

Impact: make boot command line "memtest" do one loop by default

So don't need to guess many patterns in one loop.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <49B10532.3020105@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 arch/x86/mm/memtest.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/memtest.c b/arch/x86/mm/memtest.c
index 0bcd788..605c8be 100644
--- a/arch/x86/mm/memtest.c
+++ b/arch/x86/mm/memtest.c
@@ -100,6 +100,9 @@ static int __init parse_memtest(char *arg)
 {
 	if (arg)
 		memtest_pattern = simple_strtoul(arg, NULL, 0);
+	else
+		memtest_pattern = ARRAY_SIZE(patterns);
+
 	return 0;
 }