Re: [RFC PATCH v4 6/7] mm/demotion: Add support for removing node from demotion memory tiers
From: Ying Huang
Date: Thu Jun 02 2022 - 02:43:53 EST
On Fri, 2022-05-27 at 17:55 +0530, Aneesh Kumar K.V wrote:
> This patch adds the special string "none" as a supported memtier value
> that we can use to remove a specific node from being using as demotion target.
>
> For ex:
> :/sys/devices/system/node/node1# cat memtier
> 1
> :/sys/devices/system/node/node1# cat ../../memtier/memtier1/nodelist
> 1-3
> :/sys/devices/system/node/node1# echo none > memtier
> :/sys/devices/system/node/node1#
> :/sys/devices/system/node/node1# cat memtier
> :/sys/devices/system/node/node1# cat ../../memtier/memtier1/nodelist
> 2-3
> :/sys/devices/system/node/node1#
Why do you need this? Do you have some real users?
Best Regards,
Huang, Ying
[snip]