linux-kernel - Re: [PATCH v9 30/31] x86/resctrl: Add debugfs files to show telemetry aggregator status

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Message-ID: <69d0b80e-cf48-4496-9df1-528bba1889e6@intel.com>
Date: Wed, 10 Sep 2025 10:59:00 -0700
From: Reinette Chatre <reinette.chatre@...el.com>
To: Tony Luck <tony.luck@...el.com>, Fenghua Yu <fenghuay@...dia.com>, "Maciej
 Wieczor-Retman" <maciej.wieczor-retman@...el.com>, Peter Newman
	<peternewman@...gle.com>, James Morse <james.morse@....com>, Babu Moger
	<babu.moger@....com>, Drew Fustini <dfustini@...libre.com>, Dave Martin
	<Dave.Martin@....com>, Chen Yu <yu.c.chen@...el.com>
CC: <x86@...nel.org>, <linux-kernel@...r.kernel.org>,
	<patches@...ts.linux.dev>
Subject: Re: [PATCH v9 30/31] x86/resctrl: Add debugfs files to show telemetry
 aggregator status

Hi Tony,

On 8/29/25 12:33 PM, Tony Luck wrote:
> @@ -194,6 +236,12 @@ static bool enable_events(struct event_group *e, struct pmt_feature_group *p)
>  		resctrl_enable_mon_event(e->evts[j].id, true,
>  					 e->evts[j].bin_bits, &e->evts[j]);
>  
> +	if (!infodir)
> +		infodir = resctrl_debugfs_mon_info_arch_mkdir(r);
> +
> +	if (infodir)

	if (!IS_ERR_OR_NULL(infodir))?

> +		create_debug_event_status_files(infodir, e, p);
> +
>  	pr_info("%s %s monitoring detected\n", r->name, e->name);
>  
>  	return true;

Reinette