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SubjectRe: [RFC][PATCH v2 10/21] mm: build separate zonelist for PMEM and DRAM node
Fengguang Wu <> writes:

> From: Fan Du <>
> When allocate page, DRAM and PMEM node should better not fall back to
> each other. This allows migration code to explicitly control which type
> of node to allocate pages from.
> With this patch, PMEM NUMA node can only be used in 2 ways:
> - migrate in and out
> - numactl

Can we achieve this using nodemask? That way we don't tag nodes with
different properties such as DRAM/PMEM. We can then give the
flexibilility to the device init code to add the new memory nodes to
the right nodemask


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