Commit 6ea0a467 authored Apr 07, 2008 by Anthony Liguori Committed by Linus Torvalds Apr 07, 2008

virtio_net: remove overzealous printk

The 'disable_cb' is really just a hint and as such, it's possible for more
work to get queued up while callbacks are disabled. Under stress with an
SMP guest, this printk triggers very frequently. There is no race here, this
is how things are designed to work so let's just remove the printk.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 099c736a

drivers/net/virtio_net.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -284,7 +284,6 @@ static int start_xmit(struct sk_buff skb, struct net_device dev)
		/* Activate callback for using skbs: if this returns false it
		* means some were used in the meantime. */
		if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
		printk("Unlikely: restart svq race\n");
		vi->svq->vq_ops->disable_cb(vi->svq);
		netif_start_queue(dev);
		goto again;