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| author | Wei Yongjun <yjwei@cn.fujitsu.com> | 2009-03-02 09:46:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-02 22:49:18 -0800 |
| commit | f61f6f82c90cbaa85270f26b89e3309a8c6e2e88 (patch) | |
| tree | 973fd185d1540014322153ba1b3fc8273590d8d6 /net/sctp | |
| parent | c6db93a58f1745cfe1acc2e1a1d68afc3245eced (diff) | |
| download | lwn-f61f6f82c90cbaa85270f26b89e3309a8c6e2e88.tar.gz lwn-f61f6f82c90cbaa85270f26b89e3309a8c6e2e88.zip | |
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: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/outqueue.c | 3 | ||||
| -rw-r--r-- | net/sctp/transport.c | 7 |
2 files changed, 6 insertions, 4 deletions
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index bc411c896216..a367d15a21aa 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -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 diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 5c29b14ee9af..e5dde45c79d3 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -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; |