udp: add a counter into udp_hslot

[safe/jmp/linux-2.6] / include / net / udp.h

diff --git a/include/net/udp.h b/include/net/udp.h
index 22aa2e7..9167281 100644 (file)
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -50,8 +50,16 @@ struct udp_skb_cb {
 };
 #define UDP_SKB_CB(__skb)      ((struct udp_skb_cb *)((__skb)->cb))
 
+/**
+ *     struct udp_hslot - UDP hash slot
+ *
+ *     @head:  head of list of sockets
+ *     @count: number of sockets in 'head' list
+ *     @lock:  spinlock protecting changes to head/count
+ */
 struct udp_hslot {
        struct hlist_nulls_head head;
+       int                     count;
        spinlock_t              lock;
 } __attribute__((aligned(2 * sizeof(long))));