From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>, linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 1/2] virtio: support unlocked queue poll
Date: Wed, 10 Jul 2013 12:39:58 +0930 [thread overview]
Message-ID: <87k3kzcdq1.fsf@rustcorp.com.au> (raw)
In-Reply-To: <1373274069-4301-2-git-send-email-mst@redhat.com>
"Michael S. Tsirkin" <mst@redhat.com> writes:
> This adds a way to check ring empty state after enable_cb outside any
> locks. Will be used by virtio_net.
>
> Note: there's room for more optimization: caller is likely to have a
> memory barrier already, which means we might be able to get rid of a
> barrier here. Deferring this optimization until we do some
> benchmarking.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Thanks,
Rusty.
WARNING: multiple messages have this Message-ID (diff)
From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>, linux-kernel@vger.kernel.org
Cc: virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, Jason Wang <jasowang@redhat.com>
Subject: Re: [PATCH 1/2] virtio: support unlocked queue poll
Date: Wed, 10 Jul 2013 12:39:58 +0930 [thread overview]
Message-ID: <87k3kzcdq1.fsf@rustcorp.com.au> (raw)
In-Reply-To: <1373274069-4301-2-git-send-email-mst@redhat.com>
"Michael S. Tsirkin" <mst@redhat.com> writes:
> This adds a way to check ring empty state after enable_cb outside any
> locks. Will be used by virtio_net.
>
> Note: there's room for more optimization: caller is likely to have a
> memory barrier already, which means we might be able to get rid of a
> barrier here. Deferring this optimization until we do some
> benchmarking.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Thanks,
Rusty.
next prev parent reply other threads:[~2013-07-10 3:09 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-08 9:05 [PATCH 0/2] virtio_net: fix race in RX VQ processing Michael S. Tsirkin
2013-07-08 9:04 ` [PATCH 1/2] virtio: support unlocked queue poll Michael S. Tsirkin
2013-07-08 9:04 ` Michael S. Tsirkin
2013-07-09 3:26 ` Jason Wang
2013-07-09 3:26 ` Jason Wang
2013-07-10 3:09 ` Rusty Russell [this message]
2013-07-10 3:09 ` Rusty Russell
2013-07-10 4:38 ` Asias He
2013-07-10 4:38 ` Asias He
2013-07-08 9:04 ` [PATCH 2/2] virtio_net: fix race in RX VQ processing Michael S. Tsirkin
2013-07-08 9:04 ` Michael S. Tsirkin
2013-07-08 12:52 ` Sergei Shtylyov
2013-07-08 12:52 ` Sergei Shtylyov
2013-07-08 13:08 ` Michael S. Tsirkin
2013-07-08 13:08 ` Michael S. Tsirkin
2013-07-09 3:28 ` Jason Wang
2013-07-09 3:28 ` Jason Wang
2013-07-10 4:39 ` Asias He
2013-07-10 4:39 ` Asias He
2013-07-09 3:17 ` [PATCH 0/2] " Jason Wang
2013-07-09 3:54 ` David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87k3kzcdq1.fsf@rustcorp.com.au \
--to=rusty@rustcorp.com.au \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.