From: Lai Jiangshan <laijs@cn.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] markers: let marker_debug as module parameter
Date: Tue, 30 Sep 2008 11:28:40 +0800 [thread overview]
Message-ID: <48E19CE8.8070006@cn.fujitsu.com> (raw)
if we want to enable marker debug output, we have to modify
the code and remake/reinstall the kernel in current code.
this patch enable marker_debug to be set when kernel start.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
diff --git a/kernel/marker.c b/kernel/marker.c
index 9f76c4a..5d8404f 100644
--- a/kernel/marker.c
+++ b/kernel/marker.c
@@ -28,8 +28,9 @@
extern struct marker __start___markers[];
extern struct marker __stop___markers[];
-/* Set to 1 to enable marker debug output */
-static const int marker_debug;
+static int marker_debug;
+module_param(marker_debug, bool, 0);
+MODULE_PARM_DESC(marker_debug, "Set to 1 to enable marker debug output");
/*
* markers_mutex nests inside module_mutex. Markers mutex protects the builtin
next reply other threads:[~2008-09-30 3:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 3:28 Lai Jiangshan [this message]
2008-09-30 3:41 ` [PATCH] markers: let marker_debug as module parameter Mathieu Desnoyers
2008-09-30 7:15 ` Ingo Molnar
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