linux-kernel - Re: [PATCH v1 3/3] mm/memory_hotplug: skip adjust_managed_page_count() for PageOffline() pages when offlining

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Message-ID: <aa370847-14a6-4806-8a04-d2da0a591014@redhat.com>
Date: Mon, 10 Jun 2024 10:56:18 +0200
From: David Hildenbrand <david@...hat.com>
To: Oscar Salvador <osalvador@...e.de>
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 linux-hyperv@...r.kernel.org, virtualization@...ts.linux.dev,
 xen-devel@...ts.xenproject.org, kasan-dev@...glegroups.com,
 Andrew Morton <akpm@...ux-foundation.org>, Mike Rapoport <rppt@...nel.org>,
 "K. Y. Srinivasan" <kys@...rosoft.com>,
 Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>,
 Dexuan Cui <decui@...rosoft.com>, "Michael S. Tsirkin" <mst@...hat.com>,
 Jason Wang <jasowang@...hat.com>, Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
 Eugenio Pérez <eperezma@...hat.com>,
 Juergen Gross <jgross@...e.com>, Stefano Stabellini
 <sstabellini@...nel.org>,
 Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
 Alexander Potapenko <glider@...gle.com>, Marco Elver <elver@...gle.com>,
 Dmitry Vyukov <dvyukov@...gle.com>
Subject: Re: [PATCH v1 3/3] mm/memory_hotplug: skip
 adjust_managed_page_count() for PageOffline() pages when offlining

On 10.06.24 06:29, Oscar Salvador wrote:
> On Fri, Jun 07, 2024 at 11:09:38AM +0200, David Hildenbrand wrote:
>> We currently have a hack for virtio-mem in place to handle memory
>> offlining with PageOffline pages for which we already adjusted the
>> managed page count.
>>
>> Let's enlighten memory offlining code so we can get rid of that hack,
>> and document the situation.
>>
>> Signed-off-by: David Hildenbrand <david@...hat.com>
> 
> Acked-by: Oscar Salvador <osalvador@...e.de>
> 

Thanks for the review!

-- 
Cheers,

David / dhildenb