netdev - Re: [PATCH v2] net: fec: Use unlocked timecounter reads for saving state

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Message-ID: <Yw7YW+2LKGyfYHDb@hoboy.vegasvil.org>
Date:   Tue, 30 Aug 2022 20:41:15 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Csókás Bence <csokas.bence@...lan.hu>
Cc:     Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, qiangqing.zhang@....com,
        kernel@...gutronix.de, Marc Kleine-Budde <mkl@...gutronix.de>
Subject: Re: [PATCH v2] net: fec: Use unlocked timecounter reads for saving
 state

On Tue, Aug 30, 2022 at 05:05:24PM +0200, Csókás Bence wrote:

> 3. The final option, check if we are in an atomic or otherwise
> non-interruptible context, and if not, take a mutex. Otherwise, proceed
> normally. Which is this version of the patch.

Just replace the mutex with a spinlock.

Thanks,
Richard