Re: [LSF/MM/BPF TOPIC][RFC PATCH v4 00/27] Private Memory Nodes (w/ Compressed RAM)

On Tue, Feb 24, 2026 at 10:17:38AM -0500, Gregory Price wrote:

   - Changing validations on node states
     - mempolicy checks N_MEMORY membership, so you have to hack
       N_MEMORY onto ZONE_DEVICE
       (or teach it about a new node state... N_MEMORY_PRIVATE)

This gave me something to chew on

I think this can be done without introducing N_MEMORY_PRIVATE and just
checking:   NODE_DATA(target_nid)->private

meaning these nodes can just be N_MEMORY with the same isolations.

I'll look at this a bit more.

~Gregory