diff options
| author | Baruch Even <baruch@ev-en.org> | 2006-03-20 22:22:20 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-20 22:22:20 -0800 |
| commit | c33ad6e476e4cdc245215f3eb5b3df353df1b370 (patch) | |
| tree | b19831b1630b5963a897ae655027c6d7acdd2895 /net/ipv4/tcp_htcp.c | |
| parent | b191ba0d599928372be5a89f75486eb58efab48a (diff) | |
| download | lwn-c33ad6e476e4cdc245215f3eb5b3df353df1b370.tar.gz lwn-c33ad6e476e4cdc245215f3eb5b3df353df1b370.zip | |
[TCP] H-TCP: Use msecs_to_jiffies
Use functions to calculate jiffies from milliseconds and not the old,
crude method of dividing HZ by a value. Ensures more accurate values
even in the face of strange HZ values.
Signed-off-By: Baruch Even <baruch@ev-en.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_htcp.c')
| -rw-r--r-- | net/ipv4/tcp_htcp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c index 128de4d7c0b7..fda2f873599e 100644 --- a/net/ipv4/tcp_htcp.c +++ b/net/ipv4/tcp_htcp.c @@ -80,7 +80,7 @@ static inline void measure_rtt(struct sock *sk) if (icsk->icsk_ca_state == TCP_CA_Open && tp->snd_ssthresh < 0xFFFF && ca->ccount > 3) { if (ca->maxRTT < ca->minRTT) ca->maxRTT = ca->minRTT; - if (ca->maxRTT < srtt && srtt <= ca->maxRTT+HZ/50) + if (ca->maxRTT < srtt && srtt <= ca->maxRTT+msecs_to_jiffies(20)) ca->maxRTT = srtt; } } @@ -135,7 +135,7 @@ static inline void htcp_beta_update(struct htcp *ca, u32 minRTT, u32 maxRTT) } } - if (ca->modeswitch && minRTT > max(HZ/100, 1) && maxRTT) { + if (ca->modeswitch && minRTT > msecs_to_jiffies(10) && maxRTT) { ca->beta = (minRTT<<7)/maxRTT; if (ca->beta < BETA_MIN) ca->beta = BETA_MIN; |