Re: [RFC v3 4/5] KVM: add ioregionfd context

Paolo Bonzini
2021-03-09T08:02:36Z

On 09/03/21 08:54, Jason Wang wrote:
>>
>> +        return;
>> +
>> +    spin_lock(&ctx->wq.lock);
>> +    wait_event_interruptible_exclusive_locked(ctx->wq, !ctx->busy);
>
>
> Any reason that a simple mutex_lock_interruptible() can't work here?

Or alternatively why can't the callers just take the spinlock.

Paolo

>
> Thanks
>
>
>> +    ctx->busy = true;
>> +    spin_unlock(&ctx->wq.lock);