linux-kernel - Re: [virtio-dev] Re: [PATCH v11 3/6] virtio-balloon: VIRTIO_BALLOON_F_PAGE

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Date:   Wed, 28 Jun 2017 08:04:50 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Wei Wang <wei.w.wang@...el.com>
Cc:     "Michael S. Tsirkin" <mst@...hat.com>,
        virtio-dev@...ts.oasis-open.org, linux-kernel@...r.kernel.org,
        qemu-devel@...gnu.org, virtualization@...ts.linux-foundation.org,
        kvm@...r.kernel.org, linux-mm@...ck.org, david@...hat.com,
        dave.hansen@...el.com, cornelia.huck@...ibm.com,
        akpm@...ux-foundation.org, mgorman@...hsingularity.net,
        aarcange@...hat.com, amit.shah@...hat.com, pbonzini@...hat.com,
        liliang.opensource@...il.com
Subject: Re: [virtio-dev] Re: [PATCH v11 3/6] virtio-balloon:
 VIRTIO_BALLOON_F_PAGE_CHUNKS

On Thu, Jun 15, 2017 at 04:10:17PM +0800, Wei Wang wrote:
> > So you still have a home-grown bitmap. I'd like to know why
> > isn't xbitmap suggested for this purpose by Matthew Wilcox
> > appropriate. Please add a comment explaining the requirements
> > from the data structure.
> 
> I didn't find his xbitmap being upstreamed, did you?

It doesn't have any users in the tree yet.  Can't add code with new users.
You should be the first!