linux-kernel - Re: [PATCH v2 0/2] mm: remove the memory isolate notifier

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Message-ID: <990e19a3-b758-aaca-0ea2-c04e191cb6dc@redhat.com>
Date:   Mon, 2 Dec 2019 11:27:14 +0100
From:   David Hildenbrand <david@...hat.com>
To:     linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linuxppc-dev@...ts.ozlabs.org,
        Alexander Duyck <alexander.h.duyck@...ux.intel.com>,
        Alexander Potapenko <glider@...gle.com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Arun KS <arunks@...eaurora.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Hocko <mhocko@...e.com>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        Oscar Salvador <osalvador@...e.de>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Pingfan Liu <kernelfans@...il.com>, Qian Cai <cai@....pw>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Vlastimil Babka <vbabka@...e.cz>,
        Wei Yang <richardw.yang@...ux.intel.com>
Subject: Re: [PATCH v2 0/2] mm: remove the memory isolate notifier

On 14.11.19 14:19, David Hildenbrand wrote:
> This is the MM part of
> 	https://lkml.org/lkml/2019/10/31/487
> 
> "We can get rid of the memory isolate notifier by switching to balloon
> compaction in powerpc's CMM (Collaborative Memory Management). The memory
> isolate notifier was only necessary to allow to offline memory blocks that
> contain inflated/"loaned" pages - which also possible when the inflated
> pages are movable (via balloon compaction). [...]"
> 
> Michael queued the POWERPC bits that remove the single user, but I am
> missing ACKs for the MM bits. I think it makes sense to let these two
> patches also go via Michael's tree, to avoid collissions. Thoughts?

The prereqs (powerpc bits) are upstream - I assume Michael didn't want
to mess with MM patches. @Andrew, please pick these up once you feel
like time for them has come. :)


-- 
Thanks,

David / dhildenb