From: Avi Kivity <avi@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mark McLoughlin <markmc@redhat.com>,
dlaor@redhat.com, netdev@vger.kernel.org,
Dor Laor <dor@redhat.com>,
virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 2/3] virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC)
Date: Sun, 17 May 2009 09:27:01 +0300 [thread overview]
Message-ID: <4A0FAE35.3040608@redhat.com> (raw)
In-Reply-To: <200905171134.31285.rusty@rustcorp.com.au>
Rusty Russell wrote:
>
> +static void adjust_threshold(struct vring_virtqueue *vq,
> + unsigned int out, unsigned int in)
> +{
> + /* There are really two species of virtqueue, and it matters here.
> + * If there are no output parts, it's a "normally full" receive queue,
> + * otherwise it's a "normally empty" send queue. */
>
This comment is true for networking, but not for block. ++overkill with
a ->adjust_threshold op.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-05-17 6:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1229620222-22216-1-git-send-email-markmc@redhat.com>
[not found] ` <1229620222-22216-2-git-send-email-markmc@redhat.com>
[not found] ` <1229620222-22216-3-git-send-email-markmc@redhat.com>
2009-04-21 12:59 ` [PATCH 2/3] virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC) Mark McLoughlin
2009-04-27 7:43 ` Dor Laor
2009-05-04 2:19 ` Rusty Russell
2009-05-11 17:10 ` Mark McLoughlin
2009-05-11 17:11 ` [PATCH 1/3] virtio: teach virtio_has_feature() about transport features Mark McLoughlin
2009-05-11 17:11 ` [PATCH 2/3] virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC) Mark McLoughlin
2009-05-11 17:11 ` [PATCH 3/3] lguest: add support for indirect ring entries Mark McLoughlin
2009-05-12 14:23 ` [PATCH 2/3] virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC) Rusty Russell
2009-05-17 2:04 ` Rusty Russell
2009-05-17 6:27 ` Avi Kivity [this message]
2009-05-17 14:16 ` Rusty Russell
2009-05-17 15:05 ` Avi Kivity
2009-05-19 8:15 ` Rusty Russell
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=4A0FAE35.3040608@redhat.com \
--to=avi@redhat.com \
--cc=dlaor@redhat.com \
--cc=dor@redhat.com \
--cc=markmc@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=rusty@rustcorp.com.au \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).