linux-kernel - Re: [PATCH v1 6/6] virtio-balloon: Add support for aerating memory via hinting

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Message-ID: <cad839c0-bbe6-b065-ac32-f32c117cf07e@intel.com>
Date:   Tue, 16 Jul 2019 07:00:21 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Alexander Duyck <alexander.duyck@...il.com>
Cc:     nitesh@...hat.com, kvm@...r.kernel.org, david@...hat.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        akpm@...ux-foundation.org, yang.zhang.wz@...il.com,
        pagupta@...hat.com, riel@...riel.com, konrad.wilk@...cle.com,
        lcapitulino@...hat.com, wei.w.wang@...el.com, aarcange@...hat.com,
        pbonzini@...hat.com, dan.j.williams@...el.com,
        alexander.h.duyck@...ux.intel.com
Subject: Re: [PATCH v1 6/6] virtio-balloon: Add support for aerating memory
 via hinting

On 7/16/19 2:55 AM, Michael S. Tsirkin wrote:
> The approach here is very close to what on-demand hinting that is
> already upstream does.

Are you referring to the s390 (and powerpc) stuff that is hidden behind
arch_free_page()?