linux-kernel - Re: [PATCH v15-RFC 2/8] x86/resctrl: Move all monitoring functions to RDT_RESOURCE_L3

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Date: Fri, 9 Feb 2024 10:51:25 -0800
From: Tony Luck <tony.luck@...el.com>
To: "Moger, Babu" <babu.moger@....com>
Cc: Fenghua Yu <fenghua.yu@...el.com>,
	Reinette Chatre <reinette.chatre@...el.com>,
	Peter Newman <peternewman@...gle.com>,
	Jonathan Corbet <corbet@....net>,
	Shuah Khan <skhan@...uxfoundation.org>, x86@...nel.org,
	Shaopeng Tan <tan.shaopeng@...itsu.com>,
	James Morse <james.morse@....com>,
	Jamie Iles <quic_jiles@...cinc.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Drew Fustini <dfustini@...libre.com>, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, patches@...ts.linux.dev
Subject: Re: [PATCH v15-RFC 2/8] x86/resctrl: Move all monitoring functions
 to RDT_RESOURCE_L3_MON

On Fri, Feb 09, 2024 at 09:28:25AM -0600, Moger, Babu wrote:
> Tony,
> 
> On 1/30/24 16:20, Tony Luck wrote:
> > Switch over all places that setup and use monitoring funtions to
> 
> functions?

Yes. Will fix.

> > use the new resource structure.
> > 
> > Signed-off-by: Tony Luck <tony.luck@...el.com>
> > ---
> >  arch/x86/kernel/cpu/resctrl/core.c     |  6 ++++--
> >  arch/x86/kernel/cpu/resctrl/monitor.c  | 12 ++++--------
> >  arch/x86/kernel/cpu/resctrl/rdtgroup.c |  2 +-
> >  3 files changed, 9 insertions(+), 11 deletions(-)
> > 
> > diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
> > index c50f55d7790e..0828575c3e13 100644
> > --- a/arch/x86/kernel/cpu/resctrl/core.c
> > +++ b/arch/x86/kernel/cpu/resctrl/core.c
> > @@ -591,11 +591,13 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r)
> >  		return;
> >  	}
> >  
> > -	if (r == &rdt_resources_all[RDT_RESOURCE_L3].r_resctrl) {
> > +	if (r == &rdt_resources_all[RDT_RESOURCE_L3_MON].r_resctrl) {
> >  		if (is_mbm_enabled() && cpu == d->mbm_work_cpu) {
> >  			cancel_delayed_work(&d->mbm_over);
> >  			mbm_setup_overflow_handler(d, 0);
> >  		}
> > +	}
> > +	if (r == &rdt_resources_all[RDT_RESOURCE_L3].r_resctrl) {
> 
> RDT_RESOURCE_L3_MON?

Good catch.

-Tony