linux-kernel - Re: [PATCH 4.19 000/175] 4.19.312-rc1 review

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Date: Fri, 12 Apr 2024 16:10:15 -0400
From: Sean Anderson <sean.anderson@...ux.dev>
To: Pavel Machek <pavel@...x.de>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev,
 linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
 akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
 patches@...nelci.org, lkft-triage@...ts.linaro.org, jonathanh@...dia.com,
 f.fainelli@...il.com, sudipm.mukherjee@...il.com, srw@...dewatkins.net,
 rwarsow@....de, conor@...nel.org, allen.lkml@...il.com, broonie@...nel.org,
 maco@...roid.com, tglx@...utronix.de, christophe.jaillet@...adoo.fr
Subject: Re: [PATCH 4.19 000/175] 4.19.312-rc1 review

On 4/12/24 15:46, Pavel Machek wrote:
>> Sean Anderson <sean.anderson@...ux.dev>
>>     soc: fsl: qbman: Use raw spinlock for cgr_lock
> 
> As we don't have commit ef2a8d5478b9 ("net: dpaa: Adjust queue depth
> on rate change") in 4.19, we should not really need this. Plus, 10msec
> under raw spinlock is quite evil, such kernel is not realtime any
> more. We should not be doing that.

Patches welcome :)

At some point I will try and revisit this.

--Sean