netdev: Move queue_lock into struct netdev_queue.

The lock is now an attribute of the device queue.

One thing to notice is that "suspicious" places
emerge which will need specific training about
multiple queue handling.  They are so marked with
explicit "netdev->rx_queue" and "netdev->tx_queue"
references.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 515fd25bf0fc..e835acacb479 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -449,6 +449,7 @@ static inline void napi_synchronize(const struct napi_struct *n)
 #endif
 
 struct netdev_queue {
+        spinlock_t              lock;
         struct net_device       *dev;
 };
 
@@ -629,7 +630,7 @@ struct net_device
         unsigned char           broadcast[MAX_ADDR_LEN];        /* hw bcast add */
 
         struct netdev_queue     rx_queue;
-        struct netdev_queue     tx_queue;
+        struct netdev_queue     tx_queue ____cacheline_aligned_in_smp;
 
         /* ingress path synchronizer */
         spinlock_t              ingress_lock;
@@ -639,7 +640,6 @@ struct net_device
  * Cache line mostly used on queue transmit path (qdisc)
  */
         /* device queue lock */
-        spinlock_t              queue_lock ____cacheline_aligned_in_smp;
         struct Qdisc            *qdisc;
         struct Qdisc            *qdisc_sleeping;
         struct list_head        qdisc_list;