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authorBaruch Even <baruch@ev-en.org>2006-03-20 22:22:20 -0800
committerDavid S. Miller <davem@davemloft.net>2006-03-20 22:22:20 -0800
commitc33ad6e476e4cdc245215f3eb5b3df353df1b370 (patch)
treeb19831b1630b5963a897ae655027c6d7acdd2895 /net/ipv4
parentb191ba0d599928372be5a89f75486eb58efab48a (diff)
downloadop-kernel-dev-c33ad6e476e4cdc245215f3eb5b3df353df1b370.zip
op-kernel-dev-c33ad6e476e4cdc245215f3eb5b3df353df1b370.tar.gz
[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')
-rw-r--r--net/ipv4/tcp_htcp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 128de4d..fda2f87 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;
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