From: Mel Gorman <mel@csn.ul.ie>
To: Rik van Riel <riel@redhat.com>
Cc: Rafael Aquini <aquini@redhat.com>,
linux-mm@kvack.org, "Michael S. Tsirkin" <mst@redhat.com>,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 1/4] mm: introduce compaction and migration for virtio ballooned pages
Date: Tue, 26 Jun 2012 14:20:55 +0100 [thread overview]
Message-ID: <20120626132055.GI8103@csn.ul.ie> (raw)
In-Reply-To: <4FE9B677.8040409@redhat.com>
On Tue, Jun 26, 2012 at 09:17:43AM -0400, Rik van Riel wrote:
> On 06/25/2012 07:25 PM, Rafael Aquini wrote:
> >This patch introduces helper functions that teach compaction and migration bits
> >how to cope with pages which are part of a guest memory balloon, in order to
> >make them movable by memory compaction procedures.
> >
> >Signed-off-by: Rafael Aquini<aquini@redhat.com>
>
> The function fill_balloon in drivers/virtio/virtio_balloon.c
> should probably add __GFP_MOVABLE to the gfp mask for alloc_pages,
> to keep the pageblock where balloon pages are allocated marked
> as movable.
>
You're right, but patch 3 is already doing that at the same time the
migration primitives are introduced. It does mean the full series has to
be applied to do anything but I think it's bisect safe.
--
Mel Gorman
SUSE Labs
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next prev parent reply other threads:[~2012-06-26 13:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-25 23:25 [PATCH 0/4] make balloon pages movable by compaction Rafael Aquini
2012-06-25 23:25 ` [PATCH 1/4] mm: introduce compaction and migration for virtio ballooned pages Rafael Aquini
2012-06-25 23:31 ` Konrad Rzeszutek Wilk
2012-06-25 23:57 ` Rafael Aquini
2012-06-26 10:17 ` Mel Gorman
2012-06-26 16:52 ` Andi Kleen
2012-06-26 16:54 ` Andi Kleen
2012-06-26 20:15 ` Mel Gorman
2012-06-26 20:34 ` Andi Kleen
2012-06-27 9:42 ` Mel Gorman
2012-06-26 22:01 ` Rafael Aquini
2012-06-26 13:17 ` Rik van Riel
2012-06-26 13:20 ` Mel Gorman [this message]
2012-06-26 23:57 ` Konrad Rzeszutek Wilk
2012-06-27 15:17 ` Rafael Aquini
2012-06-27 15:30 ` Konrad Rzeszutek Wilk
2012-06-25 23:25 ` [PATCH 2/4] virtio_balloon: handle concurrent accesses to virtio_balloon struct elements Rafael Aquini
2012-06-25 23:25 ` [PATCH 3/4] virtio_balloon: introduce migration primitives to balloon pages Rafael Aquini
2012-06-25 23:25 ` [PATCH 4/4] mm: add vm event counters for balloon pages compaction Rafael Aquini
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