netdev - Re: [PATCH v2 1/4] Defer skb allocation -- add destroy buffers function for virtio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 15 Dec 2009 12:57:48 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Shirley Ma <mashirle@...ibm.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>, Avi Kivity <avi@...hat.com>,
	netdev@...r.kernel.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Anthony Liguori <anthony@...emonkey.ws>
Subject: Re: [PATCH v2 1/4] Defer skb allocation -- add destroy buffers
	function for virtio

On Mon, Dec 14, 2009 at 03:22:22PM -0800, Shirley Ma wrote:
> Hello Michael,
> 
> On Mon, 2009-12-14 at 22:22 +0200, Michael S. Tsirkin wrote:
> > I dont insist, but my idea was
> > 
> > for (;;) {
> >         b = vq->destroy(vq);
> >         if (!b)
> >                 break;
> >         --vi->num;
> >         put_page(b);
> > }
> > 
> > so we do not have to lose track of the counter.
> 
> That's not a bad idea, but to do this, then this fuction will be
> specific for virtio_net device (vi is virtnet_info) only in a generic
> virtqueue API.
> 
> Thanks
> Shirley

No, this code would be in virtio net.
destroy would simply be the virtqueue API that returns
data pointer.

-- 
MST
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html