linux-kernel - Re: [PATCH v3 19/19] irqdomain: Switch to per-domain locking

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Date:   Wed, 11 Jan 2023 19:28:35 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Johan Hovold <johan@...nel.org>
Cc:     Johan Hovold <johan+linaro@...nel.org>,
        Marc Zyngier <maz@...nel.org>, x86@...nel.org,
        platform-driver-x86@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 19/19] irqdomain: Switch to per-domain locking

On Mon, Dec 12 2022 at 17:18, Thomas Gleixner wrote:
> On Mon, Dec 12 2022 at 15:29, Johan Hovold wrote:
>> I added to irq_domain_set_mapping() and which is is called for each
>> (inner) domain in a hierarchy when allocating an IRQ.
>
> Hmm. Indeed that should do the trick.
>
> Some comments would be appreciated as the rules around domain->root are
> far from obvious.

Any update on this one?