Re: [PATCH 0/4] scsi: hisi_sas: Switch to use tasklet over threaded irq handling

From: Yihang Li
Date: Sun Aug 24 2025 - 21:42:55 EST


Hi Bart,

On 2025/8/22 23:17, Bart Van Assche wrote:
> On 8/22/25 12:59 AM, Yihang Li wrote:
>> We found that when the CPU handling the interrupt thread is occupied by
>> other high-priority processes, the interrupt thread will not be scheduled.
>> So there is a change to switch the driver to use tasklet over threaded
>> interrupt handling.
> Tasklets have severe disadvantages and hence their removal has been
> proposed several times. See e.g. https://lwn.net/Articles/960041/.
> There must be a better solution than switching to tasklets.
>

Thanks you for your reply. I will consider some other solution.
Additionally, do you have any good suggestions?

> Bart.
> .
>