[IPV6] IP6TUNNEL: Add support to IPv4 over IPv6 tunnel.

[powerpc.git] / net / sunrpc / svcsock.c

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index e957ce5..22f61ae 100644 (file)
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -82,6 +82,7 @@ static void           svc_delete_socket(struct svc_sock *svsk);
 static void            svc_udp_data_ready(struct sock *, int);
 static int             svc_udp_recvfrom(struct svc_rqst *);
 static int             svc_udp_sendto(struct svc_rqst *);
+static void            svc_close_socket(struct svc_sock *svsk);
 
 static struct svc_deferred_req *svc_deferred_dequeue(struct svc_sock *svsk);
 static int svc_deferred_recv(struct svc_rqst *rqstp);
@@ -451,6 +452,8 @@ union svc_pktinfo_u {
        struct in_pktinfo pkti;
        struct in6_pktinfo pkti6;
 };
+#define SVC_PKTINFO_SPACE \
+       CMSG_SPACE(sizeof(union svc_pktinfo_u))
 
 static void svc_set_cmsg_data(struct svc_rqst *rqstp, struct cmsghdr *cmh)
 {
@@ -490,8 +493,11 @@ svc_sendto(struct svc_rqst *rqstp, struct xdr_buf *xdr)
        struct svc_sock *svsk = rqstp->rq_sock;
        struct socket   *sock = svsk->sk_sock;
        int             slen;
-       char            buffer[CMSG_SPACE(sizeof(union svc_pktinfo_u))];
-       struct cmsghdr *cmh = (struct cmsghdr *)buffer;
+       union {
+               struct cmsghdr  hdr;
+               long            all[SVC_PKTINFO_SPACE / sizeof(long)];
+       } buffer;
+       struct cmsghdr *cmh = &buffer.hdr;
        int             len = 0;
        int             result;
        int             size;
@@ -744,8 +750,11 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
        struct svc_sock *svsk = rqstp->rq_sock;
        struct svc_serv *serv = svsk->sk_server;
        struct sk_buff  *skb;
-       char            buffer[CMSG_SPACE(sizeof(union svc_pktinfo_u))];
-       struct cmsghdr *cmh = (struct cmsghdr *)buffer;
+       union {
+               struct cmsghdr  hdr;
+               long            all[SVC_PKTINFO_SPACE / sizeof(long)];
+       } buffer;
+       struct cmsghdr *cmh = &buffer.hdr;
        int             err, len;
        struct msghdr msg = {
                .msg_name = svc_addr(rqstp),
@@ -778,8 +787,8 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
        }
 
        clear_bit(SK_DATA, &svsk->sk_flags);
-       while ((err == kernel_recvmsg(svsk->sk_sock, &msg, NULL,
-                                     0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 ||
+       while ((err = kernel_recvmsg(svsk->sk_sock, &msg, NULL,
+                                    0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 ||
               (skb = skb_recv_datagram(svsk->sk_sk, 0, 1, &err)) == NULL) {
                if (err == -EAGAIN) {
                        svc_sock_received(svsk);
@@ -789,16 +798,12 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
                dprintk("svc: recvfrom returned error %d\n", -err);
        }
        rqstp->rq_addrlen = sizeof(rqstp->rq_addr);
-       if (skb->tstamp.off_sec == 0) {
-               struct timeval tv;
-
-               tv.tv_sec = xtime.tv_sec;
-               tv.tv_usec = xtime.tv_nsec / NSEC_PER_USEC;
-               skb_set_timestamp(skb, &tv);
+       if (skb->tstamp.tv64 == 0) {
+               skb->tstamp = ktime_get_real();
                /* Don't enable netstamp, sunrpc doesn't
                   need that much accuracy */
        }
-       skb_get_timestamp(skb, &svsk->sk_sk->sk_stamp);
+       svsk->sk_sk->sk_stamp = skb->tstamp;
        set_bit(SK_DATA, &svsk->sk_flags); /* there may be more data... */
 
        /*
@@ -1787,7 +1792,7 @@ svc_delete_socket(struct svc_sock *svsk)
        spin_unlock_bh(&serv->sv_lock);
 }
 
-void svc_close_socket(struct svc_sock *svsk)
+static void svc_close_socket(struct svc_sock *svsk)
 {
        set_bit(SK_CLOSE, &svsk->sk_flags);
        if (test_and_set_bit(SK_BUSY, &svsk->sk_flags))
@@ -1800,6 +1805,19 @@ void svc_close_socket(struct svc_sock *svsk)
        svc_sock_put(svsk);
 }
 
+void svc_force_close_socket(struct svc_sock *svsk)
+{
+       set_bit(SK_CLOSE, &svsk->sk_flags);
+       if (test_bit(SK_BUSY, &svsk->sk_flags)) {
+               /* Waiting to be processed, but no threads left,
+                * So just remove it from the waiting list
+                */
+               list_del_init(&svsk->sk_ready);
+               clear_bit(SK_BUSY, &svsk->sk_flags);
+       }
+       svc_close_socket(svsk);
+}
+
 /**
  * svc_makesock - Make a socket for nfsd and lockd
  * @serv: RPC server structure