netdev - Re: [PATCH 2/2] virtio_net: fix oom handling on tx

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Message-Id: <20100702.222951.260082920.davem@davemloft.net>
Date:	Fri, 02 Jul 2010 22:29:51 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rusty@...tcorp.com.au
Cc:	netdev@...r.kernel.org, mst@...hat.com, herbert@...dor.apana.org.au
Subject: Re: [PATCH 2/2] virtio_net: fix oom handling on tx

From: Rusty Russell <rusty@...tcorp.com.au>
Date: Sat, 3 Jul 2010 12:34:01 +1000

> virtio net will never try to overflow the TX ring, so the only reason
> add_buf may fail is out of memory. Thus, we can not stop the
> device until some request completes - there's no guarantee anything
> at all is outstanding.
> 
> Make the error message clearer as well: error here does not
> indicate queue full.
> 
> Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
> Signed-off-by: Rusty Russell <rusty@...tcorp.com.au> (...and avoid TX_BUSY)
> Cc: stable@...nel.org  # .34.x (s/virtqueue_/vi->svq->vq_ops->/)

Applied.
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