Re: [PATCH v2 00/14] mm: Asynchronous + multithreaded memmap init for ZONE_DEVICE

[Dan Williams]

[ adding Alex ]

On Tue, Jul 24, 2018 at 12:29 AM, Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> On Mon 23-07-18 09:15:32, Dave Hansen wrote:
>> On 07/23/2018 04:09 AM, Michal Hocko wrote:
>> > On Thu 19-07-18 11:41:10, Dave Hansen wrote:
>> >> Are you looking for the actual end-user reports?  This was more of a
>> >> case of the customer plugging in some persistent memory DIMMs, noticing
>> >> the boot delta and calling the folks who sold them the DIMMs (Intel).
>> > But this doesn't sound like something to rush a solution for in the
>> > upcoming merge windown, does it?
>>
>> No, we should not rush it.  We'll try to rework it properly.
>
> Thanks a lot Dave! I definitely do not mean to block this at all. I just
> really do not like to have the code even more cluttered than we have
> now.

Hi Michal,

I'm back from vacation. I owe you an apology I was entirely too
prickly on this thread, and the vacation cool-off-time was much
needed.

I come back to see that Alex has found a trove of low hanging fruit to
speed up ZONE_DEVICE init and ditch most of the complication I was
pushing. I'll let him chime in on the direction he wants to take this.