* Adrian Bunk <[email protected]> wrote:
> On Thu, Dec 14, 2006 at 10:59:13PM -0800, Andrew Morton wrote:
> >...
> > Changes since 2.6.19-mm1:
> >...
> > +debugging-feature-proc-timer_list.patch
> >
> > Refreshed, refactored dynticks/hrtimer queue.
> >...
>
> I'd assume sysrq_timer_list_show() wasn't intended to be unused?
correct, there's a sysrq side of it, but i forgot to send the patch to
Andrew. Find it below.
Ingo
----------------->
Subject: [patch] debugging feature: SysRq-Q to print timers
From: Ingo Molnar <[email protected]>
add SysRq-Q to print pending timers and other timer info.
Signed-off-by: Ingo Molnar <[email protected]>
---
drivers/char/sysrq.c | 14 +++++++++++++-
include/linux/hrtimer.h | 3 +++
2 files changed, 16 insertions(+), 1 deletion(-)
Index: linux/drivers/char/sysrq.c
===================================================================
--- linux.orig/drivers/char/sysrq.c
+++ linux/drivers/char/sysrq.c
@@ -36,6 +36,7 @@
#include <linux/workqueue.h>
#include <linux/kexec.h>
#include <linux/irq.h>
+#include <linux/hrtimer.h>
#include <asm/ptrace.h>
#include <asm/irq_regs.h>
@@ -159,6 +160,17 @@ static struct sysrq_key_op sysrq_sync_op
.enable_mask = SYSRQ_ENABLE_SYNC,
};
+static void sysrq_handle_show_timers(int key, struct tty_struct *tty)
+{
+ sysrq_timer_list_show();
+}
+
+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",
+};
+
static void sysrq_handle_mountro(int key, struct tty_struct *tty)
{
emergency_remount();
@@ -339,7 +351,7 @@ static struct sysrq_key_op *sysrq_key_ta
/* This will often be registered as 'Off' at init time */
NULL, /* o */
&sysrq_showregs_op, /* p */
- NULL, /* q */
+ &sysrq_show_timers_op, /* q */
&sysrq_unraw_op, /* r */
&sysrq_sync_op, /* s */
&sysrq_showstate_op, /* t */
Index: linux/include/linux/hrtimer.h
===================================================================
--- linux.orig/include/linux/hrtimer.h
+++ linux/include/linux/hrtimer.h
@@ -364,6 +364,9 @@ static inline void show_no_hz_stats(stru
/* Bootup initialization: */
extern void __init hrtimers_init(void);
+/* Show pending timers: */
+extern void sysrq_timer_list_show(void);
+
/*
* Timer-statistics info:
*/
-
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