Commit f61f6f82 authored by Wei Yongjun's avatar Wei Yongjun Committed by David S. Miller

sctp: use time_before or time_after for comparing jiffies

The functions time_before or time_after are more robust
for comparing jiffies against other values.
Signed-off-by: default avatarWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: default avatarVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c6db93a5
......@@ -428,7 +428,8 @@ void sctp_retransmit_mark(struct sctp_outq *q,
* retransmitting due to T3 timeout.
*/
if (reason == SCTP_RTXR_T3_RTX &&
(jiffies - chunk->sent_at) < transport->last_rto)
time_before(jiffies, chunk->sent_at +
transport->last_rto))
continue;
/* RFC 2960 6.2.1 Processing a Received SACK
......
......@@ -543,8 +543,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
* congestion indications more than once every window of
* data (or more loosely more than once every round-trip time).
*/
if ((jiffies - transport->last_time_ecne_reduced) >
transport->rtt) {
if (time_after(jiffies, transport->last_time_ecne_reduced +
transport->rtt)) {
transport->ssthresh = max(transport->cwnd/2,
4*transport->asoc->pathmtu);
transport->cwnd = transport->ssthresh;
......@@ -561,7 +561,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
* to be done every RTO interval, we do it every hearbeat
* interval.
*/
if ((jiffies - transport->last_time_used) > transport->rto)
if (time_after(jiffies, transport->last_time_used +
transport->rto))
transport->cwnd = max(transport->cwnd/2,
4*transport->asoc->pathmtu);
break;
......
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