linux-kernel - [PATCH] Fix documentation of sysrq-q

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Message-ID: <20081007102044.GA25693@basil.nowhere.org>
Date:	Tue, 7 Oct 2008 12:20:44 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	linux-kernel@...r.kernel.org, tglx@...utronix.de
Subject: [PATCH] Fix documentation of sysrq-q

Fix documentation of sysrq-q

I fell into the trap recently that it only dumps hrtimers instead of 
all timers. Fix the documentation.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Index: linux-2.6.27-rc6-misc/Documentation/sysrq.txt
===================================================================
--- linux-2.6.27-rc6-misc.orig/Documentation/sysrq.txt
+++ linux-2.6.27-rc6-misc/Documentation/sysrq.txt
@@ -95,7 +95,8 @@ On all -  write a character to /proc/sys
 
 'p'     - Will dump the current registers and flags to your console.
 
-'q'     - Will dump a list of all running timers.
+'q'     - Will dump a list of all running hrtimers.
+	  WARNING: Does not cover any other timers
 
 'r'     - Turns off keyboard raw mode and sets it to XLATE.
 
Index: linux-2.6.27-rc6-misc/drivers/char/sysrq.c
===================================================================
--- linux-2.6.27-rc6-misc.orig/drivers/char/sysrq.c
+++ linux-2.6.27-rc6-misc/drivers/char/sysrq.c
@@ -167,7 +167,7 @@ static void sysrq_handle_show_timers(int
 static struct sysrq_key_op sysrq_show_timers_op = {
 	.handler	= sysrq_handle_show_timers,
 	.help_msg	= "show-all-timers(Q)",
-	.action_msg	= "Show Pending Timers",
+	.action_msg	= "Show pending hrtimers (no others)",
 };
 
 static void sysrq_handle_mountro(int key, struct tty_struct *tty)
--
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