This reverts "Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/dccp_exp"
as it accentally contained the wrong set of patches. These will be
submitted separately.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
diff --git a/net/dccp/timer.c b/net/dccp/timer.c
index 16359e2..54b3c7e 100644
--- a/net/dccp/timer.c
+++ b/net/dccp/timer.c
@@ -87,6 +87,17 @@
{
struct inet_connection_sock *icsk = inet_csk(sk);
+ /* retransmit timer is used for feature negotiation throughout
+ * connection. In this case, no packet is re-transmitted, but rather an
+ * ack is generated and pending changes are placed into its options.
+ */
+ if (sk->sk_send_head == NULL) {
+ dccp_pr_debug("feat negotiation retransmit timeout %p\n", sk);
+ if (sk->sk_state == DCCP_OPEN)
+ dccp_send_ack(sk);
+ goto backoff;
+ }
+
/*
* More than than 4MSL (8 minutes) has passed, a RESET(aborted) was
* sent, no need to retransmit, this sock is dead.
@@ -115,6 +126,7 @@
return;
}
+backoff:
icsk->icsk_backoff++;
icsk->icsk_rto = min(icsk->icsk_rto << 1, DCCP_RTO_MAX);
@@ -237,35 +249,32 @@
sock_put(sk);
}
-/**
- * dccp_write_xmitlet - Workhorse for CCID packet dequeueing interface
- * See the comments above %ccid_dequeueing_decision for supported modes.
- */
-static void dccp_write_xmitlet(unsigned long data)
+/* Transmit-delay timer: used by the CCIDs to delay actual send time */
+static void dccp_write_xmit_timer(unsigned long data)
{
struct sock *sk = (struct sock *)data;
+ struct dccp_sock *dp = dccp_sk(sk);
bh_lock_sock(sk);
if (sock_owned_by_user(sk))
- sk_reset_timer(sk, &dccp_sk(sk)->dccps_xmit_timer, jiffies + 1);
+ sk_reset_timer(sk, &dp->dccps_xmit_timer, jiffies+1);
else
- dccp_write_xmit(sk);
+ dccp_write_xmit(sk, 0);
bh_unlock_sock(sk);
+ sock_put(sk);
}
-static void dccp_write_xmit_timer(unsigned long data)
+static void dccp_init_write_xmit_timer(struct sock *sk)
{
- dccp_write_xmitlet(data);
- sock_put((struct sock *)data);
+ struct dccp_sock *dp = dccp_sk(sk);
+
+ setup_timer(&dp->dccps_xmit_timer, dccp_write_xmit_timer,
+ (unsigned long)sk);
}
void dccp_init_xmit_timers(struct sock *sk)
{
- struct dccp_sock *dp = dccp_sk(sk);
-
- tasklet_init(&dp->dccps_xmitlet, dccp_write_xmitlet, (unsigned long)sk);
- setup_timer(&dp->dccps_xmit_timer, dccp_write_xmit_timer,
- (unsigned long)sk);
+ dccp_init_write_xmit_timer(sk);
inet_csk_init_xmit_timers(sk, &dccp_write_timer, &dccp_delack_timer,
&dccp_keepalive_timer);
}
@@ -281,7 +290,8 @@
{
s64 delta = ktime_us_delta(ktime_get_real(), dccp_timestamp_seed);
- return div_u64(delta, DCCP_TIME_RESOLUTION);
+ do_div(delta, 10);
+ return delta;
}
EXPORT_SYMBOL_GPL(dccp_timestamp);
