Re: [PATCH 16/25] PM / Domains: don't use [delayed_]work_pending()

From: Rafael J. Wysocki
Date: Sat Dec 22 2012 - 06:51:55 EST


On Friday, December 21, 2012 05:57:06 PM Tejun Heo wrote:
> There's no need to test whether a (delayed) work item in pending
> before queueing, flushing or cancelling it. Most uses are unnecessary
> and quite a few of them are buggy.

Is the particular one you're removing from domain.c buggy?

> Remove unnecessary pending tests from power domains. Only compile
> tested.

I can take this one too.

Thanks,
Rafael


> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> Cc: linux-pm@xxxxxxxxxxxxxxx
> ---
> Please let me know how this patch should be routed. I can take it
> through the workqueue tree if necessary.
>
> Thanks.
>
> drivers/base/power/domain.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
> index acc3a8d..9a6b05a 100644
> --- a/drivers/base/power/domain.c
> +++ b/drivers/base/power/domain.c
> @@ -433,8 +433,7 @@ static bool genpd_abort_poweroff(struct generic_pm_domain *genpd)
> */
> void genpd_queue_power_off_work(struct generic_pm_domain *genpd)
> {
> - if (!work_pending(&genpd->power_off_work))
> - queue_work(pm_wq, &genpd->power_off_work);
> + queue_work(pm_wq, &genpd->power_off_work);
> }
>
> /**
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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