Hi David

-----Original Message-----
From: David Hildenbrand <redacted>
Sent: Friday, July 10, 2020 4:30 PM
To: Justin He <redacted>; Catalin Marinas
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Subject: Re: [PATCH v4 0/2] Fix and enable pmem as RAM device on arm64

On 10.07.20 05:16, Jia He wrote:

quoted

This fixies a few issues when I tried to enable pmem as RAM device on

arm64.

quoted

To use memory_add_physaddr_to_nid as a fallback nid, it would be better
implement a general version (__weak) in mm/memory_hotplug. After that,

arm64/

quoted

sh/s390 can simply use the general version, and PowerPC/ia64/x86 will

use

quoted

arch specific version.

Tested on ThunderX2 host/qemu "-M virt" guest with a nvdimm device. The
memblocks from the dax pmem device can be either hot-added or hot-

removed

quoted

on arm64 guest. Also passed the compilation test on x86.

Changes:
v4: - remove "device-dax: use fallback nid when numa_node is invalid",

wait

quoted

      for Dan Williams' phys_addr_to_target_node() patch

So, this series no longer does what it promises? "Fix and enable pmem as
RAM device on arm64"

Hmm, a little bit awkward but seems no long what it promises. How about
sending patch1 patch2 individually without this cover-letter?

--
Cheers,
Justin (Jia He)


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