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Date: Tue, 11 Jun 2024 12:36:11 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: David Hildenbrand <david@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
 linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev,
 xen-devel@lists.xenproject.org, kasan-dev@googlegroups.com, Mike Rapoport
 <rppt@kernel.org>, Oscar Salvador <osalvador@suse.de>, "K. Y. Srinivasan"
 <kys@microsoft.com>, Haiyang Zhang <haiyangz@microsoft.com>, Wei Liu
 <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
 "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>,
 Xuan Zhuo <xuanzhuo@linux.alibaba.com>, Eugenio =?ISO-8859-1?Q?P=E9rez?=
 <eperezma@redhat.com>, Juergen Gross <jgross@suse.com>, Stefano Stabellini
 <sstabellini@kernel.org>, Oleksandr Tyshchenko
 <oleksandr_tyshchenko@epam.com>, Alexander Potapenko <glider@google.com>,
 Marco Elver <elver@google.com>, Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [PATCH v1 2/3] mm/memory_hotplug: initialize memmap of
 !ZONE_DEVICE with PageOffline() instead of PageReserved()
Message-Id: <20240611123611.36d0633c65ec8171152fe803@linux-foundation.org>
In-Reply-To: <824c319a-530e-4153-80f5-20e2c463fa81@redhat.com>
References: <20240607090939.89524-1-david@redhat.com>
	<20240607090939.89524-3-david@redhat.com>
	<824c319a-530e-4153-80f5-20e2c463fa81@redhat.com>
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On Tue, 11 Jun 2024 11:42:56 +0200 David Hildenbrand <david@redhat.com> wrote:

> > We'll leave the ZONE_DEVICE case alone for now.
> > 
> 
> @Andrew, can we add here:
> 
> "Note that self-hosted vmemmap pages will no longer be marked as 
> reserved. This matches ordinary vmemmap pages allocated from the buddy 
> during memory hotplug. Now, really only vmemmap pages allocated from 
> memblock during early boot will be marked reserved. Existing 
> PageReserved() checks seem to be handling all relevant cases correctly 
> even after this change."

Done, thanks.