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Commit 668f895a authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
Browse files

[NET]: Hide the queue_mapping field inside netif_subqueue_stopped 



Many places get the queue_mapping field from skb to pass it to the
netif_subqueue_stopped() which will be 0 in any case.

Make the helper that works with sk_buff

Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4e3ab47a

include/linux/netdevice.h

+6 −1
Original line number Diff line number Diff line
@@ -996,7 +996,7 @@ static inline void netif_stop_subqueue(struct net_device *dev, u16 queue_index) 
 *

 * Check individual transmit queue of a device with multiple transmit queues.

 */

static inline int netif_subqueue_stopped(const struct net_device *dev,

static inline int __netif_subqueue_stopped(const struct net_device *dev,

					 u16 queue_index)

{

#ifdef CONFIG_NETDEVICES_MULTIQUEUE
@@ -1007,6 +1007,11 @@ static inline int netif_subqueue_stopped(const struct net_device *dev, 
#endif

}



static inline int netif_subqueue_stopped(const struct net_device *dev,

					 struct sk_buff *skb)

{

	return __netif_subqueue_stopped(dev, skb_get_queue_mapping(skb));

}



/**

 *	netif_wake_subqueue - allow sending packets on subqueue

net/core/dev.c

+2 −2
Original line number Diff line number Diff line
@@ -1553,7 +1553,7 @@ gso: 
			return rc;

		}

		if (unlikely((netif_queue_stopped(dev) ||

			     netif_subqueue_stopped(dev, skb->queue_mapping)) &&

			     netif_subqueue_stopped(dev, skb)) &&

			     skb->next))

			return NETDEV_TX_BUSY;

	} while (skb->next);
@@ -1692,7 +1692,7 @@ gso: 
			HARD_TX_LOCK(dev, cpu);



			if (!netif_queue_stopped(dev) &&

			    !netif_subqueue_stopped(dev, skb->queue_mapping)) {

			    !netif_subqueue_stopped(dev, skb)) {

				rc = 0;

				if (!dev_hard_start_xmit(skb, dev)) {

					HARD_TX_UNLOCK(dev);

net/core/netpoll.c

+2 −2
Original line number Diff line number Diff line
@@ -67,7 +67,7 @@ static void queue_process(struct work_struct *work) 
		local_irq_save(flags);

		netif_tx_lock(dev);

		if ((netif_queue_stopped(dev) ||

		     netif_subqueue_stopped(dev, skb->queue_mapping)) ||

		     netif_subqueue_stopped(dev, skb)) ||

		     dev->hard_start_xmit(skb, dev) != NETDEV_TX_OK) {

			skb_queue_head(&npinfo->txq, skb);

			netif_tx_unlock(dev);
@@ -269,7 +269,7 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb) 
		     tries > 0; --tries) {

			if (netif_tx_trylock(dev)) {

				if (!netif_queue_stopped(dev) &&

				    !netif_subqueue_stopped(dev, skb->queue_mapping))

				    !netif_subqueue_stopped(dev, skb))

					status = dev->hard_start_xmit(skb, dev);

				netif_tx_unlock(dev);

net/core/pktgen.c

+3 −3
Original line number Diff line number Diff line
@@ -3383,7 +3383,7 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) 


	if ((netif_queue_stopped(odev) ||

	     (pkt_dev->skb &&

	      netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping))) ||

	      netif_subqueue_stopped(odev, pkt_dev->skb))) ||

	    need_resched()) {

		idle_start = getCurUs();
@@ -3400,7 +3400,7 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) 
		pkt_dev->idle_acc += getCurUs() - idle_start;



		if (netif_queue_stopped(odev) ||

		    netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping)) {

		    netif_subqueue_stopped(odev, pkt_dev->skb)) {

			pkt_dev->next_tx_us = getCurUs();	/* TODO */

			pkt_dev->next_tx_ns = 0;

			goto out;	/* Try the next interface */
@@ -3429,7 +3429,7 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) 


	netif_tx_lock_bh(odev);

	if (!netif_queue_stopped(odev) &&

	    !netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping)) {

	    !netif_subqueue_stopped(odev, pkt_dev->skb)) {



		atomic_inc(&(pkt_dev->skb->users));

	      retry_now:

net/sched/sch_teql.c

+2 −2
Original line number Diff line number Diff line
@@ -284,7 +284,7 @@ restart: 
		if (slave->qdisc_sleeping != q)

			continue;

		if (netif_queue_stopped(slave) ||

		    netif_subqueue_stopped(slave, subq) ||

		    __netif_subqueue_stopped(slave, subq) ||

		    !netif_running(slave)) {

			busy = 1;

			continue;
@@ -294,7 +294,7 @@ restart: 
		case 0:

			if (netif_tx_trylock(slave)) {

				if (!netif_queue_stopped(slave) &&

				    !netif_subqueue_stopped(slave, subq) &&

				    !__netif_subqueue_stopped(slave, subq) &&

				    slave->hard_start_xmit(skb, slave) == 0) {

					netif_tx_unlock(slave);

					master->slaves = NEXT_SLAVE(q);