From 20bbd0f75ee4b72c1dafc8e5fb6ad39ba506a75c Mon Sep 17 00:00:00 2001 From: Gerrit Renker Date: Thu, 4 Sep 2008 07:30:19 +0200 Subject: dccp ccid-2: Remove wrappers around sk_{reset,stop}_timer() This removes the wrappers around the sk timer functions as it makes the code clearer and not much is gained from using wrappers: the BUG_ON in start_rto_timer will never trigger since that function was called only when * the RTO timer expired (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). One further motive behind this patch is to replace the RTO timer with the icsk retransmission timer, as it is already part of the DCCP socket. Signed-off-by: Gerrit Renker --- net/dccp/ccids/ccid2.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-) (limited to 'net/dccp') diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index 22753fd9869..c539f79ab8e 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -110,8 +110,6 @@ 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; @@ -150,23 +148,13 @@ static void ccid2_hc_tx_rto_expire(unsigned long data) /* if we were blocked before, we may now send cwnd=1 packet */ if (sender_was_blocked) tasklet_schedule(&dccp_sk(sk)->dccps_xmitlet); - ccid2_start_rto_timer(sk); + /* restart backed-off timer */ + sk_reset_timer(sk, &hctx->rtotimer, jiffies + hctx->rto); out: bh_unlock_sock(sk); sock_put(sk); } -static void ccid2_start_rto_timer(struct sock *sk) -{ - struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk); - - ccid2_pr_debug("setting RTO timeout=%ld\n", hctx->rto); - - BUG_ON(timer_pending(&hctx->rtotimer)); - sk_reset_timer(sk, &hctx->rtotimer, - jiffies + hctx->rto); -} - static void ccid2_hc_tx_packet_sent(struct sock *sk, unsigned int len) { struct dccp_sock *dp = dccp_sk(sk); @@ -245,7 +233,7 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, unsigned int len) /* setup RTO timer */ if (!timer_pending(&hctx->rtotimer)) - ccid2_start_rto_timer(sk); + sk_reset_timer(sk, &hctx->rtotimer, jiffies + hctx->rto); #ifdef CONFIG_IP_DCCP_CCID2_DEBUG do { @@ -262,14 +250,6 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, unsigned int len) #endif } -static void ccid2_hc_tx_kill_rto_timer(struct sock *sk) -{ - struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk); - - sk_stop_timer(sk, &hctx->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 @@ -645,7 +625,7 @@ static void ccid2_hc_tx_exit(struct sock *sk) struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk); int i; - ccid2_hc_tx_kill_rto_timer(sk); + sk_stop_timer(sk, &hctx->rtotimer); for (i = 0; i < hctx->seqbufc; i++) kfree(hctx->seqbuf[i]); -- cgit v1.2.3