linux-kernel - Re: [PATCH v7 01/31] x86,fs/resctrl: Consolidate monitor event descriptions

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Message-ID: <9dcf8b1a-225d-49a1-ae91-887ddf125431@intel.com>
Date: Thu, 17 Jul 2025 10:51:14 -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>, Anil Keshavamurthy <anil.s.keshavamurthy@...el.com>,
	Chen Yu <yu.c.chen@...el.com>
CC: <x86@...nel.org>, <linux-kernel@...r.kernel.org>,
	<patches@...ts.linux.dev>
Subject: Re: [PATCH v7 01/31] x86,fs/resctrl: Consolidate monitor event
 descriptions

Hi Tony,

On 7/11/25 4:53 PM, Tony Luck wrote:
> There are currently only three monitor events, all associated with
> the RDT_RESOURCE_L3 resource. Growing support for additional events
> will be easier with some restructuring to have a single point in
> file system code where all attributes of all events are defined.
> 
> Place all event descriptions into an array mon_event_all[]. Doing
> this has the beneficial side effect of removing the need for
> rdt_resource::evt_list.
> 
> Add resctrl_event_id::QOS_FIRST_EVENT for a lower bound on range
> checks for event ids and as the starting index to scan mon_event_all[].
> 
> Drop the code that builds evt_list and change the two places where
> the list is scanned to scan mon_event_all[] instead using a new
> helper macro for_each_mon_event().
> 
> Architecture code now informs file system code which events are
> available with resctrl_enable_mon_event().
> 
> Signed-off-by: Tony Luck <tony.luck@...el.com>
> Reviewed-by: Fenghua Yu <fenghuay@...dia.com>
> ---

Thank you.

Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>

Reinette