linux-kernel - Re: [PATCH v2] mm: Only re-generate demotion targets when a numa node changes its N

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Message-ID: <Yi9bhXSADpNt6WEC@localhost.localdomain>
Date:   Mon, 14 Mar 2022 16:13:09 +0100
From:   Oscar Salvador <osalvador@...e.de>
To:     "Huang, Ying" <ying.huang@...el.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Abhishek Goel <huntbag@...ux.vnet.ibm.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mm: Only re-generate demotion targets when a numa
 node changes its N_CPU state

On Mon, Mar 14, 2022 at 09:03:59AM +0800, Huang, Ying wrote:
> Oscar Salvador <osalvador@...e.de> writes:
> On host machine, PMEM is always exposed via memory hotplug.  But later
> on, we found that for guest system it's possible for PMEM to be exposed
> as normal memory.

Could you please elaborate on that? How is it done? I would love to hear the
details.

Thanks


-- 
Oscar Salvador
SUSE Labs