linux-kernel - Re: [RFC PATCH 0/2] Resctrl

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Date:   Mon, 31 Jul 2023 17:19:31 -0700
From:   Tony Luck <tony.luck@...el.com>
To:     Drew Fustini <dfustini@...libre.com>
Cc:     James Morse <james.morse@....com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        "Chatre, Reinette" <reinette.chatre@...el.com>,
        Babu Moger <Babu.Moger@....com>,
        Peter Newman <peternewman@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        H Peter Anvin <hpa@...or.com>,
        "shameerali.kolothum.thodi@...wei.com" 
        <shameerali.kolothum.thodi@...wei.com>,
        D Scott Phillips OS <scott@...amperecomputing.com>,
        "carl@...amperecomputing.com" <carl@...amperecomputing.com>,
        "lcherian@...vell.com" <lcherian@...vell.com>,
        "bobo.shaobowang@...wei.com" <bobo.shaobowang@...wei.com>,
        "tan.shaopeng@...itsu.com" <tan.shaopeng@...itsu.com>,
        "xingxin.hx@...nanolis.org" <xingxin.hx@...nanolis.org>,
        "baolin.wang@...ux.alibaba.com" <baolin.wang@...ux.alibaba.com>,
        Jamie Iles <quic_jiles@...cinc.com>,
        Xin Hao <xhao@...ux.alibaba.com>,
        "Pitre, Nicolas" <npitre@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        "aricciardi@...libre.com" <aricciardi@...libre.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "patches@...ts.linux.dev" <patches@...ts.linux.dev>
Subject: Re: [RFC PATCH 0/2] Resctrl - rewrite (WIP)

On Wed, Jul 26, 2023 at 06:52:48AM -0700, Tony Luck wrote:
> On Tue, Jul 25, 2023 at 07:27:25PM -0700, Drew Fustini wrote:
> > 
> > Also, is resctrl2_v65rc1 the latest to branch to test?
> 
> Yes. That's the latest. There haven't been any updates for a
> few days because I'm working on a module to support pseudo-locking.
> I'm half-way there (can do most of the bits to set a group into
> pseudo-locked mode ... about to work on the cleanup when the
> group is removed, the filesystem unmounted, or the module unloaded).

Updated version available at:

git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git

Branch: resctrl2_v65rc4

Some minor fixes to core code, also changes to support pseudo-locking
(core code for the "mode" file plus some new functions in the resource
structure to call into modules to support this).

-Tony