X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fdccp%2Ftimer.c;h=8703a792b56068ec44e15804731d2a0366ce7873;hb=064922a805ec7aadfafdd27aa6b4908d737c3c1d;hp=41ea0f6594c4a5b26e82247cddc3539f90f06001;hpb=920841d8d1d61bc12b43f95a579a5374f6d98f81;p=linux-2.6-omap-h63xx.git

diff --git a/net/dccp/timer.c b/net/dccp/timer.c
index 41ea0f6594c..8703a792b56 100644
--- a/net/dccp/timer.c
+++ b/net/dccp/timer.c
@@ -261,8 +261,53 @@ out:
 	sock_put(sk);
 }
 
+/* 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, &dp->dccps_xmit_timer, jiffies+1);
+	else
+		dccp_write_xmit(sk, 0);
+	bh_unlock_sock(sk);
+	sock_put(sk);
+}
+
+static void dccp_init_write_xmit_timer(struct sock *sk)
+{
+	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)
 {
+	dccp_init_write_xmit_timer(sk);
 	inet_csk_init_xmit_timers(sk, &dccp_write_timer, &dccp_delack_timer,
 				  &dccp_keepalive_timer);
 }
+
+static ktime_t dccp_timestamp_seed;
+/**
+ * dccp_timestamp  -  10s of microseconds time source
+ * Returns the number of 10s of microseconds since loading DCCP. This is native
+ * DCCP time difference format (RFC 4340, sec. 13).
+ * Please note: This will wrap around about circa every 11.9 hours.
+ */
+u32 dccp_timestamp(void)
+{
+	s64 delta = ktime_us_delta(ktime_get_real(), dccp_timestamp_seed);
+
+	do_div(delta, 10);
+	return delta;
+}
+EXPORT_SYMBOL_GPL(dccp_timestamp);
+
+void __init dccp_timestamping_init(void)
+{
+	dccp_timestamp_seed = ktime_get_real();
+}