On Tue 02-02-16 08:53:25, Mike Galbraith wrote:
> Cancel pending work of the cpu_stat_off CPU.
Thanks for catching that Mike. This was a last minute change and I
screwed it...
Andrew could you fold this into the original patch, please?
Thanks!
> Signed-off-by: Mike Galbraith <mgalbraith@xxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> ---
> mm/vmstat.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> --- a/mm/vmstat.c
> +++ b/mm/vmstat.c
> @@ -1486,25 +1486,25 @@ static void vmstat_shepherd(struct work_
>
> get_online_cpus();
> /* Check processors whose vmstat worker threads have been disabled */
> - for_each_cpu(cpu, cpu_stat_off)
> + for_each_cpu(cpu, cpu_stat_off) {
> + struct delayed_work *dw = &per_cpu(vmstat_work, cpu);
> +
> if (need_update(cpu)) {
> if (cpumask_test_and_clear_cpu(cpu, cpu_stat_off))
> - queue_delayed_work_on(cpu, vmstat_wq,
> - &per_cpu(vmstat_work, cpu), 0);
> + queue_delayed_work_on(cpu, vmstat_wq, dw, 0);
> } else {
> /*
> * Cancel the work if quiet_vmstat has put this
> * cpu on cpu_stat_off because the work item might
> * be still scheduled
> */
> - cancel_delayed_work(this_cpu_ptr(&vmstat_work));
> + cancel_delayed_work(dw);
> }
> -
> + }
> put_online_cpus();
>
> schedule_delayed_work(&shepherd,
> round_jiffies_relative(sysctl_stat_interval));
> -
> }
>
> static void __init start_shepherd_timer(void)
--
Michal Hocko
SUSE Labs
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