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Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h20
1 files changed, 15 insertions, 5 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index c9fad6fb629b..96565ff0de6a 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -132,6 +132,7 @@ struct sock_common {
* @sk_receive_queue: incoming packets
* @sk_wmem_alloc: transmit queue bytes committed
* @sk_write_queue: Packet sending queue
+ * @sk_async_wait_queue: DMA copied packets
* @sk_omem_alloc: "o" is "option" or "other"
* @sk_wmem_queued: persistent queue size
* @sk_forward_alloc: space allocated forward
@@ -205,6 +206,7 @@ struct sock {
atomic_t sk_omem_alloc;
struct sk_buff_head sk_receive_queue;
struct sk_buff_head sk_write_queue;
+ struct sk_buff_head sk_async_wait_queue;
int sk_wmem_queued;
int sk_forward_alloc;
gfp_t sk_allocation;
@@ -871,10 +873,7 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock)
if (filter) {
unsigned int pkt_len = sk_run_filter(skb, filter->insns,
filter->len);
- if (!pkt_len)
- err = -EPERM;
- else
- skb_trim(skb, pkt_len);
+ err = pkt_len ? pskb_trim(skb, pkt_len) : -EPERM;
}
if (needlock)
@@ -1271,11 +1270,22 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
* This routine must be called with interrupts disabled or with the socket
* locked so that the sk_buff queue operation is ok.
*/
-static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb)
+#ifdef CONFIG_NET_DMA
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early)
+{
+ __skb_unlink(skb, &sk->sk_receive_queue);
+ if (!copied_early)
+ __kfree_skb(skb);
+ else
+ __skb_queue_tail(&sk->sk_async_wait_queue, skb);
+}
+#else
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early)
{
__skb_unlink(skb, &sk->sk_receive_queue);
__kfree_skb(skb);
}
+#endif
extern void sock_enable_timestamp(struct sock *sk);
extern int sock_get_timestamp(struct sock *, struct timeval __user *);