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Message-ID: <42f2a561-f675-14d7-8d4f-87acfe0a18e9@intel.com> Date: Mon, 15 Apr 2019 15:14:46 -0700 From: Dave Hansen <dave.hansen@...el.com> To: Yang Shi <yang.shi@...ux.alibaba.com>, mhocko@...e.com, mgorman@...hsingularity.net, riel@...riel.com, hannes@...xchg.org, akpm@...ux-foundation.org, keith.busch@...el.com, dan.j.williams@...el.com, fengguang.wu@...el.com, fan.du@...el.com, ying.huang@...el.com, ziy@...dia.com Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: [v2 PATCH 5/9] mm: vmscan: demote anon DRAM pages to PMEM node On 4/15/19 3:10 PM, Yang Shi wrote: >> Also, I don't see anything in the code tying this to strictly demote >> from DRAM to PMEM. Is that the end effect, or is it really implemented >> that way and I missed it? > > No, not restrict to PMEM. It just tries to demote from "preferred node" > (or called compute node) to a memory-only node. In the hardware with > PMEM, PMEM would be the memory-only node. If that's the case, your patch subject is pretty criminal. :)
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