diff mbox

clocksource: register cpu notifier to remove timer from dying CPU

Message ID CAKohpom7n=cbWJttvxgYCv7uzXQeJx4FzMZuyKWvNvbM6kmqjA@mail.gmail.com
State New
Headers show

Commit Message

Viresh Kumar April 8, 2014, 4:57 a.m. UTC 
On 5 April 2014 17:33, Viresh Kumar <viresh.kumar@linaro.org> wrote:
>  kernel/time/clocksource.c | 64 +++++++++++++++++++++++++++++++++++++++--------
>  1 file changed, 53 insertions(+), 11 deletions(-)
>
> diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
> index ba3e502..8054fb1 100644
> --- a/kernel/time/clocksource.c
> +++ b/kernel/time/clocksource.c
> @@ -23,16 +23,21 @@
>   *   o Allow clocksource drivers to be unregistered
>   */
>
> +#include <linux/cpu.h>
>  #include <linux/device.h>
>  #include <linux/clocksource.h>
>  #include <linux/init.h>
>  #include <linux/module.h>
> +#include <linux/notifier.h>
>  #include <linux/sched.h> /* for spin_unlock_irq() using preempt_count() m68k */
>  #include <linux/tick.h>
>  #include <linux/kthread.h>
>
>  #include "tick-internal.h"
>
> +/* Tracks current CPU to queue watchdog timer on */
> +static int timer_cpu;
> +

Minor fixup, will send V2 after few days:

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diff mbox

Patch

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 8054fb1..356c6c6 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -35,9 +35,6 @@ 

 #include "tick-internal.h"

-/* Tracks current CPU to queue watchdog timer on */
-static int timer_cpu;
-
 void timecounter_init(struct timecounter *tc,
                      const struct cyclecounter *cc,
                      u64 start_tstamp)
@@ -185,6 +182,9 @@  static char override_name[CS_NAME_LEN];
 static int finished_booting;

 #ifdef CONFIG_CLOCKSOURCE_WATCHDOG
+/* Tracks current CPU to queue watchdog timer on */
+static int timer_cpu;
+
 static void clocksource_watchdog_work(struct work_struct *work);
 static void clocksource_select(void);
--
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