linux-kernel - RE: [PATCH v3 kernel 0/7] Extend virtio-balloon for fast (de)inflating & fast live migration

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Date:	Tue, 9 Aug 2016 02:52:41 +0000
From:	"Li, Liang Z" <liang.z.li@...el.com>
To:	"Hansen, Dave" <dave.hansen@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	"virtualization@...ts.linux-foundation.org" 
	<virtualization@...ts.linux-foundation.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"virtio-dev@...ts.oasis-open.org" <virtio-dev@...ts.oasis-open.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"qemu-devel@...gnu.org" <qemu-devel@...gnu.org>,
	"quintela@...hat.com" <quintela@...hat.com>,
	"dgilbert@...hat.com" <dgilbert@...hat.com>
Subject: RE: [PATCH v3 kernel 0/7] Extend virtio-balloon for fast
 (de)inflating & fast live migration

> Subject: Re: [PATCH v3 kernel 0/7] Extend virtio-balloon for fast (de)inflating
> & fast live migration
> 
> On 08/07/2016 11:35 PM, Liang Li wrote:
> > Dave Hansen suggested a new scheme to encode the data structure,
> > because of additional complexity, it's not implemented in v3.
> 
> FWIW, I don't think it takes any additional complexity here, at least in the
> guest implementation side.  The thing I suggested would just mean explicitly
> calling out that there was a single bitmap instead of implying it in the ABI.
> 
> Do you think the scheme I suggested is the way to go?

Yes, I think so.  And I will do that in the later version. In this V3, I just want to solve the 
issue caused by a large page bitmap in v2.

Liang