From: Stefan Hajnoczi <stefanha@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] tun: avoid owner checks on IFF_ATTACH_QUEUE
Date: Thu, 10 Jan 2013 12:55:03 +0100 [thread overview]
Message-ID: <20130110115503.GD30885@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <20130110113108.GF13451@redhat.com>
On Thu, Jan 10, 2013 at 01:31:08PM +0200, Michael S. Tsirkin wrote:
> At the moment, we check owner when we enable queue in tun.
> This seems redundant and will break some valid uses
> where fd is passed around: I think TUNSETOWNER is there
> to prevent others from attaching to a persistent device not
> owned by them. Here the fd is already attached,
> enabling/disabling queue is more like read/write.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
>
> ---
>
> Note: this is unrelated to Stefan's bugfix.
This should go into 3.8-rc.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
next prev parent reply other threads:[~2013-01-10 11:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-10 11:31 [PATCH] tun: avoid owner checks on IFF_ATTACH_QUEUE Michael S. Tsirkin
2013-01-10 11:55 ` Stefan Hajnoczi [this message]
2013-01-10 22:38 ` David Miller
2013-01-10 14:08 ` Jason Wang
2013-01-10 14:19 ` Michael S. Tsirkin
2013-01-10 14:27 ` Jason Wang
2013-01-10 14:41 ` Michael S. Tsirkin
2013-01-10 14:47 ` Jason Wang
2013-01-10 15:10 ` Michael S. Tsirkin
2013-01-10 15:27 ` Jason Wang
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