From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Hansen <dave.hansen@intel.com>
Subject: Re: [RESEND PATCH v3 kernel 1/7] virtio-balloon: rework deflate to
	add page to a list
Date: Mon, 24 Oct 2016 09:46:05 -0700
Message-ID: <580E3ACD.1080906__43517.7912972451$1477327582$gmane$org@intel.com>
References: <1477031080-12616-1-git-send-email-liang.z.li@intel.com>
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To: Liang Li <liang.z.li@intel.com>, mst@redhat.com
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On 10/20/2016 11:24 PM, Liang Li wrote:
> Will allow faster notifications using a bitmap down the road.
> balloon_pfn_to_page() can be removed because it's useless.

This is a pretty terse description of what's going on here.  Could you
try to elaborate a bit?  What *is* the current approach?  Why does it
not work going forward?  What do you propose instead?  Why is it better?