[IPV4/6]: NULL out sk_sndmsg_{page,off} in flush_pending_frames not append_data.

Signed-off-by: David S. Miller <davem@redhat.com>

net/ipv4/ip_output.c

@@ -762,8 +762,6 @@ int ip_append_data(struct sock *sk,
 		inet->cork.fragsize = mtu = dst_pmtu(&rt->u.dst);
 		inet->cork.rt = rt;
 		inet->cork.length = 0;
-		sk->sk_sndmsg_page = NULL;
-		sk->sk_sndmsg_off = 0;
 		if ((exthdrlen = rt->u.dst.header_len) != 0) {
 			length += exthdrlen;
 			transhdrlen += exthdrlen;
@@ -1208,6 +1206,8 @@ void ip_flush_pending_frames(struct sock *sk)
 		ip_rt_put(inet->cork.rt);
 		inet->cork.rt = NULL;
 	}
+	sk->sk_sndmsg_page = NULL;
+	sk->sk_sndmsg_off = 0;
 }
 
 

net/ipv6/ip6_output.c

@@ -852,8 +852,6 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, int offse
 		np->cork.hop_limit = hlimit;
 		inet->cork.fragsize = mtu = dst_pmtu(&rt->u.dst);
 		inet->cork.length = 0;
-		sk->sk_sndmsg_page = NULL;
-		sk->sk_sndmsg_off = 0;
 		exthdrlen = rt->u.dst.header_len + (opt ? opt->opt_flen : 0);
 		length += exthdrlen;
 		transhdrlen += exthdrlen;
@@ -1125,5 +1123,7 @@ void ip6_flush_pending_frames(struct sock *sk)
 		dst_release(&np->cork.rt->u.dst);
 		np->cork.rt = NULL;
 	}
+	sk->sk_sndmsg_page = NULL;
+	sk->sk_sndmsg_off = 0;
 	memset(&inet->cork.fl, 0, sizeof(inet->cork.fl));
 }