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authorPaul Mackerras <paulus@samba.org>2008-12-18 11:06:12 +1100
committerPaul Mackerras <paulus@samba.org>2008-12-18 11:06:12 +1100
commitc280266a326ccabeb64b6d69fa4fd21faf5bf354 (patch)
treef8a89e593a0ba43b75bb666d8e245b2460dc0d40 /include/linux/netdevice.h
parenteddce368f99b682683e09cf206eaa25131d40abe (diff)
parent55dac3a5553b13891f0ae4bbd11920619b5436d4 (diff)
Merge branch 'linux-2.6' into next
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9d77b1d7dca..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);