diff options
Diffstat (limited to '')
| -rw-r--r-- | include/linux/netpoll.h | 1 | ||||
| -rw-r--r-- | net/core/netpoll.c | 15 |
2 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index f91e50a76efd..f6e8abe0b1f1 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -33,6 +33,7 @@ struct netpoll { u16 local_port, remote_port; u8 remote_mac[ETH_ALEN]; struct sk_buff_head skb_pool; + struct work_struct refill_wq; }; struct netpoll_info { diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 62b4041aae1a..8a0df2b274a8 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -284,12 +284,13 @@ static struct sk_buff *find_skb(struct netpoll *np, int len, int reserve) struct sk_buff *skb; zap_completion_queue(); - refill_skbs(np); repeat: skb = alloc_skb(len, GFP_ATOMIC); - if (!skb) + if (!skb) { skb = skb_dequeue(&np->skb_pool); + schedule_work(&np->refill_wq); + } if (!skb) { if (++count < 10) { @@ -535,6 +536,7 @@ static void skb_pool_flush(struct netpoll *np) { struct sk_buff_head *skb_pool; + cancel_work_sync(&np->refill_wq); skb_pool = &np->skb_pool; skb_queue_purge_reason(skb_pool, SKB_CONSUMED); } @@ -621,6 +623,14 @@ int netpoll_parse_options(struct netpoll *np, char *opt) } EXPORT_SYMBOL(netpoll_parse_options); +static void refill_skbs_work_handler(struct work_struct *work) +{ + struct netpoll *np = + container_of(work, struct netpoll, refill_wq); + + refill_skbs(np); +} + int __netpoll_setup(struct netpoll *np, struct net_device *ndev) { struct netpoll_info *npinfo; @@ -666,6 +676,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev) /* fill up the skb queue */ refill_skbs(np); + INIT_WORK(&np->refill_wq, refill_skbs_work_handler); /* last thing to do is link it to the net device structure */ rcu_assign_pointer(ndev->npinfo, npinfo); |