On Fri, 2022-06-03 at 19:12 +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. And also such node will not participate in promotion. That is, hot memory in it will not be promoted to other nodes. > > 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# > >