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-rw-r--r--include/linux/netdevice.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c8bcb59adfd..e26f5495289 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -319,6 +319,7 @@ enum
{
NAPI_STATE_SCHED, /* Poll is scheduled */
NAPI_STATE_DISABLE, /* Disable pending */
+ NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */
};
extern void __napi_schedule(struct napi_struct *n);
@@ -1497,6 +1498,12 @@ static inline void netif_rx_complete(struct net_device *dev,
{
unsigned long flags;
+ /*
+ * don't let napi dequeue from the cpu poll list
+ * just in case its running on a different cpu
+ */
+ if (unlikely(test_bit(NAPI_STATE_NPSVC, &napi->state)))
+ return;
local_irq_save(flags);
__netif_rx_complete(dev, napi);
local_irq_restore(flags);
@@ -1537,7 +1544,6 @@ static inline void __netif_tx_unlock_bh(struct netdev_queue *txq)
/**
* netif_tx_lock - grab network device transmit lock
* @dev: network device
- * @cpu: cpu number of lock owner
*
* Get network device transmit lock
*/