> From: Jens Axboe <axboe@xxxxxxxxx>
> Sent: Tuesday, December 14, 2021 8:00 AM
> ...
> We can probably get by with doing just that, and just ignore if a delayed
> work timer is already running.
>
> Dexuan, can you try this one?
>
> diff --git a/block/blk-core.c b/block/blk-core.c
> index 1378d084c770..c1833f95cb97 100644
> --- a/block/blk-core.c
> +++ b/block/blk-core.c
> @@ -1484,6 +1484,8 @@ EXPORT_SYMBOL(kblockd_schedule_work);
> int kblockd_mod_delayed_work_on(int cpu, struct delayed_work *dwork,
> unsigned long delay)
> {
> + if (!delay)
> + return queue_work_on(cpu, kblockd_workqueue, &dwork->work);
> return mod_delayed_work_on(cpu, kblockd_workqueue, dwork, delay);
> }
> EXPORT_SYMBOL(kblockd_mod_delayed_work_on);
>
> --
> Jens Axboe
According to my test, this patch works as efficiently as the v1. Thanks Jens!
Thanks,
-- Dexuan
