Subject: Re: [PATCH] net: Handle threadirqs in __napi_schedule_irqoff

From: Sean Anderson <[email-masked]>
Date: Fri, 13 Sep 2024 12:19:05 -0400

On 9/13/24 12:14, Sebastian Andrzej Siewior wrote:
> On 2024-09-13 11:09:54 [-0400], Sean Anderson wrote:
>> The threadirqs kernel parameter can be used to force threaded IRQs even
>> on non-PREEMPT_RT kernels. Use force_irqthreads to determine if we can
>> skip disabling local interrupts. This defaults to false on regular
>> kernels, and is always true on PREEMPT_RT kernels.
> 
> Is this fixing a behaviour or is this from the clean up/ make it pretty
> category?

It's in response to [1].

[1] https://lore.kernel.org/netdev/[email-masked]/

> The forced-threaded interrupts run with disabled interrupts on !RT so
> this change should not fix anything.

OK, so maybe this isn't necessary at all?

--Sean