a7y18lte-ubports/android_kernel_samsung_universal7885
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netpoll: call ->ndo_select_queue() in tx path

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In netpoll tx path, we miss the chance of calling ->ndo_select_queue(),
thus could cause problems when bonding is involved.

This patch makes dev_pick_tx() extern (and rename it to netdev_pick_tx())
to let netpoll call it in netpoll_send_skb_on_dev().

Reported-by: Sylvain Munaut <s.munaut@whatever-company.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Tested-by: Sylvain Munaut <s.munaut@whatever-company.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amerigo Wang 2012-09-17 20:16:31 +00:00 committed by David S. Miller
parent 6b6e27255f
commit 8c4c49df5c
3 changed files with 7 additions and 4 deletions
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3
include/linux/netdevice.h
View File

@ -1403,6 +1403,9 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev,
f(dev, &dev->_tx[i], arg); f(dev, &dev->_tx[i], arg);
} }
extern struct netdev_queue *netdev_pick_tx(struct net_device *dev,
struct sk_buff *skb);
/* /*
* Net namespace inlines * Net namespace inlines
*/ */

4
net/core/dev.c
View File

@ -2396,7 +2396,7 @@ static inline int get_xps_queue(struct net_device *dev, struct sk_buff *skb)
#endif #endif
} }
static struct netdev_queue *dev_pick_tx(struct net_device *dev, struct netdev_queue *netdev_pick_tx(struct net_device *dev,
struct sk_buff *skb) struct sk_buff *skb)
{ {
int queue_index; int queue_index;
@ -2571,7 +2571,7 @@ int dev_queue_xmit(struct sk_buff *skb)
skb_update_prio(skb); skb_update_prio(skb);
txq = dev_pick_tx(dev, skb); txq = netdev_pick_tx(dev, skb);
q = rcu_dereference_bh(txq->qdisc); q = rcu_dereference_bh(txq->qdisc);
#ifdef CONFIG_NET_CLS_ACT #ifdef CONFIG_NET_CLS_ACT

2
net/core/netpoll.c
View File

@ -328,7 +328,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
if (skb_queue_len(&npinfo->txq) == 0 && !netpoll_owner_active(dev)) { if (skb_queue_len(&npinfo->txq) == 0 && !netpoll_owner_active(dev)) {
struct netdev_queue *txq; struct netdev_queue *txq;
txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); txq = netdev_pick_tx(dev, skb);
/* try until next clock tick */ /* try until next clock tick */
for (tries = jiffies_to_usecs(1)/USEC_PER_POLL; for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;