Re: [PATCH vhost 04/17] virtio_ring: split: remove double check of the unmap ops

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To: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Subject: Re: [PATCH vhost 04/17] virtio_ring: split: remove double check of the unmap ops
From: Jason Wang <jasowang@xxxxxxxxxx>
Date: Thu, 1 Feb 2024 13:47:19 +0800
Cc: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxx, Richard Weinberger <richard@xxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Paolo Abeni <pabeni@xxxxxxxxxx>, Hans de Goede <hdegoede@xxxxxxxxxx>, Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>, Vadim Pasternak <vadimp@xxxxxxxxxx>, Bjorn Andersson <andersson@xxxxxxxxxx>, Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>, Cornelia Huck <cohuck@xxxxxxxxxx>, Halil Pasic <pasic@xxxxxxxxxxxxx>, Eric Farman <farman@xxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Jesper Dangaard Brouer <hawk@xxxxxxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, Benjamin Berg <benjamin.berg@xxxxxxxxx>, Yang Li <yang.lee@xxxxxxxxxxxxxxxxx>, linux-um@xxxxxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, platform-driver-x86@xxxxxxxxxxxxxxx, linux-remoteproc@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx
In-reply-to: <20240131044244-mutt-send-email-mst@kernel.org>
References: <20240130114224.86536-1-xuanzhuo@linux.alibaba.com> <20240130114224.86536-5-xuanzhuo@linux.alibaba.com> <CACGkMEs-wUa_z_tGYEwBf7EVJAtuJdkX4HAdjqMXHEM1ys-gKQ@mail.gmail.com> <20240131044244-mutt-send-email-mst@kernel.org>

On Wed, Jan 31, 2024 at 5:43 PM Michael S. Tsirkin <mst@xxxxxxxxxx> wrote:
>
> On Wed, Jan 31, 2024 at 05:12:22PM +0800, Jason Wang wrote:
> > I post a patch to store flags unconditionally at:
> >
> > https://lore.kernel.org/all/20220224122655-mutt-send-email-mst@xxxxxxxxxx/
>
> what happened to it btw?

Haven't got time for a benchmark. We can evaluate whether we still
need it here and do the benchmark if yes.

Thanks

>
> --
> MST
>

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References:
- [PATCH vhost 00/17] virtio: drivers maintain dma info for premapped vq
  - From: Xuan Zhuo
- [PATCH vhost 04/17] virtio_ring: split: remove double check of the unmap ops
  - From: Xuan Zhuo
- Re: [PATCH vhost 04/17] virtio_ring: split: remove double check of the unmap ops
  - From: Jason Wang
- Re: [PATCH vhost 04/17] virtio_ring: split: remove double check of the unmap ops
  - From: Michael S. Tsirkin

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