This removes the wrappers around the sk timer functions, since not much is
gained from using them: the BUG_ON in start_rto_timer will never trigger
since that function is called only if:
* the RTO timer expires (rto_expire, and then timer_pending() is false);
* in tx_packet_sent only if !timer_pending() (BUG_ON is redundant here);
* previously in new_ack, after stopping the timer (timer_pending() false).
Removing the wrappers also clears the way for eventually replacing the
RTO timer with the icsk-retransmission-timer, as it is already part of the
DCCP socket.
Signed-off-by: Gerrit Renker <gerrit@xxxxxxxxxxxxxx>
---
net/dccp/ccids/ccid2.c | 28 +++-------------------------
1 files changed, 3 insertions(+), 25 deletions(-)
--- a/net/dccp/ccids/ccid2.c
+++ b/net/dccp/ccids/ccid2.c
@@ -111,8 +111,6 @@ static void ccid2_change_l_ack_ratio(struct sock *sk, u32 val)
dp->dccps_l_ack_ratio = val;
}
-static void ccid2_start_rto_timer(struct sock *sk);
-
static void ccid2_hc_tx_rto_expire(unsigned long data)
{
struct sock *sk = (struct sock *)data;
@@ -131,7 +129,7 @@ static void ccid2_hc_tx_rto_expire(unsigned long data)
if (hc->tx_rto > DCCP_RTO_MAX)
hc->tx_rto = DCCP_RTO_MAX;
- ccid2_start_rto_timer(sk);
+ sk_reset_timer(sk, &hc->tx_rtotimer, jiffies + hc->tx_rto);
/* adjust pipe, cwnd etc */
hc->tx_ssthresh = hc->tx_cwnd / 2;
@@ -153,16 +151,6 @@ out:
sock_put(sk);
}
-static void ccid2_start_rto_timer(struct sock *sk)
-{
- struct ccid2_hc_tx_sock *hc = ccid2_hc_tx_sk(sk);
-
- ccid2_pr_debug("setting RTO timeout=%u\n", hc->tx_rto);
-
- BUG_ON(timer_pending(&hc->tx_rtotimer));
- sk_reset_timer(sk, &hc->tx_rtotimer, jiffies + hc->tx_rto);
-}
-
static void ccid2_hc_tx_packet_sent(struct sock *sk, int more, unsigned int len)
{
struct dccp_sock *dp = dccp_sk(sk);
@@ -239,9 +227,7 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, int more, unsigned int len)
}
#endif
- /* setup RTO timer */
- if (!timer_pending(&hc->tx_rtotimer))
- ccid2_start_rto_timer(sk);
+ sk_reset_timer(sk, &hc->tx_rtotimer, jiffies + hc->tx_rto);
#ifdef CONFIG_IP_DCCP_CCID2_DEBUG
do {
@@ -320,14 +306,6 @@ out_invalid_option:
return -1;
}
-static void ccid2_hc_tx_kill_rto_timer(struct sock *sk)
-{
- struct ccid2_hc_tx_sock *hc = ccid2_hc_tx_sk(sk);
-
- sk_stop_timer(sk, &hc->tx_rtotimer);
- ccid2_pr_debug("deleted RTO timer\n");
-}
-
/**
* ccid2_rtt_estimator - Sample RTT and compute RTO using RFC2988 algorithm
* This code is almost identical with TCP's tcp_rtt_estimator(), since
@@ -692,7 +670,7 @@ static void ccid2_hc_tx_exit(struct sock *sk)
struct ccid2_hc_tx_sock *hc = ccid2_hc_tx_sk(sk);
int i;
- ccid2_hc_tx_kill_rto_timer(sk);
+ sk_stop_timer(sk, &hc->tx_rtotimer);
for (i = 0; i < hc->tx_seqbufc; i++)
kfree(hc->tx_seqbuf[i]);
--
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