Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

[mv-sheeva.git] / include / net / sock.h

diff --git a/include/net/sock.h b/include/net/sock.h
index 95bd3fd75f942d42351cd42450420334fef6f2a0..07133c5e986867cd3ab7affbb1a37dd85cb4801c 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1208,6 +1208,39 @@ static inline int skb_copy_to_page(struct sock *sk, char __user *from,
        return 0;
 }
 
+/**
+ * sk_wmem_alloc_get - returns write allocations
+ * @sk: socket
+ *
+ * Returns sk_wmem_alloc minus initial offset of one
+ */
+static inline int sk_wmem_alloc_get(const struct sock *sk)
+{
+       return atomic_read(&sk->sk_wmem_alloc) - 1;
+}
+
+/**
+ * sk_rmem_alloc_get - returns read allocations
+ * @sk: socket
+ *
+ * Returns sk_rmem_alloc
+ */
+static inline int sk_rmem_alloc_get(const struct sock *sk)
+{
+       return atomic_read(&sk->sk_rmem_alloc);
+}
+
+/**
+ * sk_has_allocations - check if allocations are outstanding
+ * @sk: socket
+ *
+ * Returns true if socket has write or read allocations
+ */
+static inline int sk_has_allocations(const struct sock *sk)
+{
+       return sk_wmem_alloc_get(sk) || sk_rmem_alloc_get(sk);
+}
+
 /*
  *     Queue a received datagram if it will fit. Stream and sequenced
  *     protocols can't normally use this as they need to fit buffers in