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[79.181.91.42]) by smtp.gmail.com with ESMTPSA id p3sm68510245qta.12.2019.08.12.08.43.39 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 12 Aug 2019 08:43:43 -0700 (PDT) Date: Mon, 12 Aug 2019 11:43:36 -0400 From: "Michael S. Tsirkin" To: Alexander Duyck Cc: Nitesh Narayan Lal , kvm list , David Hildenbrand , Dave Hansen , LKML , linux-mm , Andrew Morton , Yang Zhang , pagupta@redhat.com, Rik van Riel , Konrad Rzeszutek Wilk , Matthew Wilcox , lcapitulino@redhat.com, wei.w.wang@intel.com, Andrea Arcangeli , Paolo Bonzini , dan.j.williams@intel.com, Alexander Duyck Subject: Re: [PATCH v4 6/6] virtio-balloon: Add support for providing unused page reports to host Message-ID: <20190812114256-mutt-send-email-mst@kernel.org> References: <20190807224037.6891.53512.stgit@localhost.localdomain> <20190807224219.6891.25387.stgit@localhost.localdomain> <20190812055054-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Aug 12, 2019 at 08:20:43AM -0700, Alexander Duyck wrote: > On Mon, Aug 12, 2019 at 2:53 AM Michael S. Tsirkin wrote: > > > > On Wed, Aug 07, 2019 at 03:42:19PM -0700, Alexander Duyck wrote: > > > From: Alexander Duyck > > > > > > --- a/include/uapi/linux/virtio_balloon.h > > > +++ b/include/uapi/linux/virtio_balloon.h > > > @@ -36,6 +36,7 @@ > > > #define VIRTIO_BALLOON_F_DEFLATE_ON_OOM 2 /* Deflate balloon on OOM */ > > > #define VIRTIO_BALLOON_F_FREE_PAGE_HINT 3 /* VQ to report free pages */ > > > #define VIRTIO_BALLOON_F_PAGE_POISON 4 /* Guest is using page poisoning */ > > > +#define VIRTIO_BALLOON_F_REPORTING 5 /* Page reporting virtqueue */ > > > > > > /* Size of a PFN in the balloon interface. */ > > > #define VIRTIO_BALLOON_PFN_SHIFT 12 > > > > Just a small comment: same as any feature bit, > > or indeed any host/guest interface changes, please > > CC virtio-dev on any changes to this UAPI file. > > We must maintain these in the central place in the spec, > > otherwise we run a risk of conflicts. > > > > Okay, other than that if I resubmit with the virtio-dev list added to > you thing this patch set is ready to be acked and pulled into either > the virtio or mm tree assuming there is no other significant feedback > that comes in? > > Thanks. > > - Alex >From my POV yes. If it's my tree acks by mm folks will be necessary. -- MST