linux-kernel - Re: [v2 RFC PATCH 0/9] Another Approach to Use PMEM as NUMA Node

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Message-ID: <20190417152345.GB4786@localhost.localdomain>
Date:   Wed, 17 Apr 2019 09:23:46 -0600
From:   Keith Busch <keith.busch@...el.com>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Dave Hansen <dave.hansen@...el.com>,
        Yang Shi <yang.shi@...ux.alibaba.com>,
        mgorman@...hsingularity.net, riel@...riel.com, hannes@...xchg.org,
        akpm@...ux-foundation.org, dan.j.williams@...el.com,
        fengguang.wu@...el.com, fan.du@...el.com, ying.huang@...el.com,
        ziy@...dia.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [v2 RFC PATCH 0/9] Another Approach to Use PMEM as NUMA Node

On Wed, Apr 17, 2019 at 11:23:18AM +0200, Michal Hocko wrote:
> On Tue 16-04-19 14:22:33, Dave Hansen wrote:
> > Keith Busch had a set of patches to let you specify the demotion order
> > via sysfs for fun.  The rules we came up with were:
> 
> I am not a fan of any sysfs "fun"

I'm hung up on the user facing interface, but there should be some way a
user decides if a memory node is or is not a migrate target, right?