netdev - Re: [PATCH] net: Handle threadirqs in __napi_schedule

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Message-ID: <20240913161446.NYZEvAi1@linutronix.de>
Date: Fri, 13 Sep 2024 18:14:46 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Sean Anderson <sean.anderson@...ux.dev>
Cc: "David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, Juri Lelli <juri.lelli@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: Handle threadirqs in __napi_schedule_irqoff

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

> Signed-off-by: Sean Anderson <sean.anderson@...ux.dev>

Sebastian