linux-kernel - Re: [PATCH] fs/resctrl: Eliminate false positive lockdep warning when reading SNC counters

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Message-ID: <8de19e0b-161a-4c9e-8520-62a7e043622e@intel.com>
Date: Fri, 12 Sep 2025 08:30:54 -0700
From: Reinette Chatre <reinette.chatre@...el.com>
To: qinyuntan <qinyuntan@...ux.alibaba.com>, <tony.luck@...el.com>,
	<james.morse@....com>, <Dave.Martin@....com>, <babu.moger@....com>,
	<bp@...en8.de>, <tglx@...utronix.de>, <dave.hansen@...ux.intel.com>
CC: <x86@...nel.org>, <hpa@...or.com>, <peternewman@...gle.com>,
	<linux-kernel@...r.kernel.org>, <patches@...ts.linux.dev>
Subject: Re: [PATCH] fs/resctrl: Eliminate false positive lockdep warning when
 reading SNC counters

Hi Qinyun,

On 9/12/25 2:51 AM, qinyuntan wrote:
> Hi Reinette,
> 
> Thank you for reporting this issue, and my apologies for the delayed reply :).
> 
> I was able to reproduce the same lockdep warning on my local SNC-3 system, and the warning disappears after applying your patch.
> 
> The change looks good to me.
> 
> Reviewed-by: Qinyun Tan <qinyuntan@...ux.alibaba.com>
> 

Thank you very much for testing and reviewing!

This patch has already been queued for inclusion. Unfortunately
there may not be another opportunity for your tag to be added, but it will
forever be associated with this patch in lore.kernel.org.

Reinette