struct iovec   *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
                unsigned int    niov = tx->tx_niov;
 #endif
-               struct msghdr msg = {
-                       .msg_name       = NULL,
-                       .msg_namelen    = 0,
-                       .msg_iov        = scratchiov,
-                       .msg_iovlen     = niov,
-                       .msg_control    = NULL,
-                       .msg_controllen = 0,
-                       .msg_flags      = MSG_DONTWAIT
-               };
-               mm_segment_t oldmm = get_fs();
+               struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
                int  i;
 
                for (nob = i = 0; i < niov; i++) {
                    nob < tx->tx_resid)
                        msg.msg_flags |= MSG_MORE;
 
-               set_fs (KERNEL_DS);
-               rc = sock_sendmsg(sock, &msg, nob);
-               set_fs (oldmm);
+               rc = kernel_sendmsg(sock, &msg, (struct kvec *)scratchiov, niov, nob);
        }
        return rc;
 }
                struct iovec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
                unsigned int  niov = tx->tx_nkiov;
 #endif
-               struct msghdr msg = {
-                       .msg_name       = NULL,
-                       .msg_namelen    = 0,
-                       .msg_iov        = scratchiov,
-                       .msg_iovlen     = niov,
-                       .msg_control    = NULL,
-                       .msg_controllen = 0,
-                       .msg_flags      = MSG_DONTWAIT
-               };
-               mm_segment_t  oldmm = get_fs();
+               struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
                int        i;
 
                for (nob = i = 0; i < niov; i++) {
                    nob < tx->tx_resid)
                        msg.msg_flags |= MSG_MORE;
 
-               set_fs (KERNEL_DS);
-               rc = sock_sendmsg(sock, &msg, nob);
-               set_fs (oldmm);
+               rc = kernel_sendmsg(sock, &msg, (struct kvec *)scratchiov, niov, nob);
 
                for (i = 0; i < niov; i++)
                        kunmap(kiov[i].kiov_page);
 
         * empty enough to take the whole message immediately */
 
        for (;;) {
-               struct iovec  iov = {
+               struct kvec  iov = {
                        .iov_base = buffer,
                        .iov_len  = nob
                };
                struct msghdr msg = {
-                       .msg_name       = NULL,
-                       .msg_namelen    = 0,
-                       .msg_iov        = &iov,
-                       .msg_iovlen     = 1,
-                       .msg_control    = NULL,
-                       .msg_controllen = 0,
                        .msg_flags      = (timeout == 0) ? MSG_DONTWAIT : 0
                };
 
                        }
                }
 
-               set_fs (KERNEL_DS);
                then = jiffies;
-               rc = sock_sendmsg (sock, &msg, iov.iov_len);
+               rc = kernel_sendmsg(sock, &msg, &iov, 1, nob);
                ticks -= jiffies - then;
-               set_fs (oldmm);
 
                if (rc == nob)
                        return 0;