Re: Fwd: [RFC] make kthread_worker_fn to be freezable

[yalin wang]

2015-06-03 13:20 GMT+08:00 Tejun Heo <tj@xxxxxxxxxx>:
> On Tue, Jun 02, 2015 at 11:13:44AM +0800, yalin wang wrote:
>> this means i need create kthread like this :
>>
>> struct task_struct *kworker_task = kthread_run(kthread_worker_fn,
>> &worker, "nvme%d", dev->instance);
>> kworker_task->flags &= ~PF_NOFREEZE;
>> is it safe to do like this ?
>
> It's not.
>
>> i don't see an API to set other thread to be freezable .
>> only set_freezable() , which set the current thread to be freezable .
>
> But you can create a wrapper kthread function which sets freezable and
> calls kthread_worker_fn().
>
oh,  got it, i see your meaning,
Thanks a lot !
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