The patch titled
netpoll: don't spin forever sending to stopped queues
has been added to the -mm tree. Its filename is
netpoll-dont-spin-forever-sending-to-blocked-queues.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: netpoll: don't spin forever sending to stopped queues
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
When transmitting a skb in netpoll_send_skb(), only retry a limited number
of times if the device queue is stopped.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
net/core/netpoll.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff -puN net/core/netpoll.c~netpoll-dont-spin-forever-sending-to-blocked-queues net/core/netpoll.c
--- a/net/core/netpoll.c~netpoll-dont-spin-forever-sending-to-blocked-queues
+++ a/net/core/netpoll.c
@@ -279,14 +279,10 @@ static void netpoll_send_skb(struct netp
* network drivers do not expect to be called if the queue is
* stopped.
*/
- if (netif_queue_stopped(np->dev)) {
- netif_tx_unlock(np->dev);
- netpoll_poll(np);
- udelay(50);
- continue;
- }
+ status = NETDEV_TX_BUSY;
+ if (!netif_queue_stopped(np->dev))
+ status = np->dev->hard_start_xmit(skb, np->dev);
- status = np->dev->hard_start_xmit(skb, np->dev);
netif_tx_unlock(np->dev);
/* success */
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
git-acpi.patch
netpoll-dont-spin-forever-sending-to-blocked-queues.patch
-
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