1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 5c19cba34dce..5bf59c8493b7 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -51,6 +51,7 @@ struct msghdr {
         void            *msg_control;   /* ancillary data */
         __kernel_size_t msg_controllen; /* ancillary data buffer length */
         unsigned int    msg_flags;      /* flags on received message */
+        struct kiocb    *msg_iocb;      /* ptr to iocb for async requests */
 };
  
 struct user_msghdr {
@@ -138,6 +139,11 @@ static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr
         return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
 }
 
+static inline size_t msg_data_left(struct msghdr *msg)
+{
+        return iov_iter_count(&msg->msg_iter);
+}
+
 /* "Socket"-level control message types: */
 
 #define SCM_RIGHTS      0x01            /* rw: access rights (array of int) */
@@ -181,6 +187,7 @@ struct ucred {
 #define AF_WANPIPE      25      /* Wanpipe API Sockets */
 #define AF_LLC          26      /* Linux LLC                    */
 #define AF_IB           27      /* Native InfiniBand address    */
+#define AF_MPLS         28      /* MPLS */
 #define AF_CAN          29      /* Controller Area Network      */
 #define AF_TIPC         30      /* TIPC sockets                 */
 #define AF_BLUETOOTH    31      /* Bluetooth sockets            */
@@ -226,6 +233,7 @@ struct ucred {
 #define PF_WANPIPE      AF_WANPIPE
 #define PF_LLC          AF_LLC
 #define PF_IB           AF_IB
+#define PF_MPLS         AF_MPLS
 #define PF_CAN          AF_CAN
 #define PF_TIPC         AF_TIPC
 #define PF_BLUETOOTH    AF_BLUETOOTH