linux-kernel - Re: [PATCH v2 00/14] mm: Asynchronous + multithreaded memmap init for ZONE

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Message-ID: <20180724072937.GD28386@dhcp22.suse.cz>
Date:   Tue, 24 Jul 2018 09:29:37 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     Dan Williams <dan.j.williams@...el.com>, pasha.tatashin@...cle.com,
        dalias@...c.org, Jan Kara <jack@...e.cz>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        linux-mm <linux-mm@...ck.org>, Paul Mackerras <paulus@...ba.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        daniel.m.jordan@...cle.com, Ingo Molnar <mingo@...hat.com>,
        fenghua.yu@...el.com, Jerome Glisse <jglisse@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Luck, Tony" <tony.luck@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v2 00/14] mm: Asynchronous + multithreaded memmap init
 for ZONE_DEVICE

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.
-- 
Michal Hocko
SUSE Labs