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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2009-05-25 22:58:01 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-05-25 22:58:01 -0700 |
| commit | 08baf561083bc27a953aa087dd8a664bb2b88e8e (patch) | |
| tree | 979d92224e21b69368a27bb684b74b3d4d744183 /net/core/dev.c | |
| parent | net: sh_eth: Add support SH7724 (diff) | |
| download | linux-dev-08baf561083bc27a953aa087dd8a664bb2b88e8e.tar.xz linux-dev-08baf561083bc27a953aa087dd8a664bb2b88e8e.zip | |
net: txq_trans_update() helper
We would like to get rid of netdev->trans_start = jiffies; that about all net
drivers have to use in their start_xmit() function, and use txq->trans_start
instead.
This can be done generically in core network, as suggested by David.
Some devices, (particularly loopback) dont need trans_start update, because
they dont have transmit watchdog. We could add a new device flag, or rely
on fact that txq->tran_start can be updated is txq->xmit_lock_owner is
different than -1. Use a helper function to hide our choice.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 241613f6dd2f..5eb3e48ab31d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1698,6 +1698,8 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, skb->dst = NULL; } rc = ops->ndo_start_xmit(skb, dev); + if (rc == 0) + txq_trans_update(txq); /* * TODO: if skb_orphan() was called by * dev->hard_start_xmit() (for example, the unmodified @@ -1727,6 +1729,7 @@ gso: skb->next = nskb; return rc; } + txq_trans_update(txq); if (unlikely(netif_tx_queue_stopped(txq) && skb->next)) return NETDEV_TX_BUSY; } while (skb->next); |