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| author | Andy Gospodarek <andy@greyhouse.net> | 2008-06-19 17:19:12 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-06-28 10:23:32 -0400 |
| commit | b45f87681e2851f0c991a589989daa6a4a351565 (patch) | |
| tree | e702ff34a8070a30fcf661e2f648198e14363c3a /drivers/net | |
| parent | 42bfd33ab7bce7d2abaa8bd968ae9ad0dc9a4771 (diff) | |
| download | op-kernel-dev-b45f87681e2851f0c991a589989daa6a4a351565.zip op-kernel-dev-b45f87681e2851f0c991a589989daa6a4a351565.tar.gz | |
e1000: remove e1000_clean_tx_irq call from e1000_netpoll
The call to e1000_clean_tx_irq in e1000_netpoll can race with the call
to e1000_clean_tx_irq in e1000_clean. With a small bit of tweaking to
to netpoll_send_skb to simulate a system that was under extreme stress,
I was able to reproduce these concurrent calls. This can result in
multiple frees to the skbs on the tx ring buffer.
Dropping this call from e1000_netpoll should be fine since we can rely
on the calls in e1000_clean to do what is needed since napi will poll
the hardware just after calling poll_controller.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index b0e2493..311ca26 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -5251,7 +5251,6 @@ e1000_netpoll(struct net_device *netdev) disable_irq(adapter->pdev->irq); e1000_intr(adapter->pdev->irq, netdev); - e1000_clean_tx_irq(adapter, adapter->tx_ring); #ifndef CONFIG_E1000_NAPI adapter->clean_rx(adapter, adapter->rx_ring); #endif |
