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[NET] IPV4: Fix whitespace errors.

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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki 2007-02-09 23:24:47 +09:00 • committed by David S. Miller
parent 642656518b
commit e905a9edab
120 changed files with 1775 additions and 1775 deletions
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50
net/ipv4/tcp_cubic.c
View file

@ -175,42 +175,42 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
}
}
/* cubic function - calc*/
/* calculate c * time^3 / rtt,
* while considering overflow in calculation of time^3
/* cubic function - calc*/
/* calculate c * time^3 / rtt,
* while considering overflow in calculation of time^3
* (so time^3 is done by using 64 bit)
* and without the support of division of 64bit numbers
* (so all divisions are done by using 32 bit)
* also NOTE the unit of those veriables
* time = (t - K) / 2^bictcp_HZ
* c = bic_scale >> 10
* also NOTE the unit of those veriables
* time = (t - K) / 2^bictcp_HZ
* c = bic_scale >> 10
* rtt = (srtt >> 3) / HZ
* !!! The following code does not have overflow problems,
* if the cwnd < 1 million packets !!!
*/
*/
/* change the unit from HZ to bictcp_HZ */
t = ((tcp_time_stamp + (ca->delay_min>>3) - ca->epoch_start)
t = ((tcp_time_stamp + (ca->delay_min>>3) - ca->epoch_start)
<< BICTCP_HZ) / HZ;
if (t < ca->bic_K) /* t - K */
if (t < ca->bic_K) /* t - K */
offs = ca->bic_K - t;
else
offs = t - ca->bic_K;
else
offs = t - ca->bic_K;
/* c/rtt * (t-K)^3 */
delta = (cube_rtt_scale * offs * offs * offs) >> (10+3*BICTCP_HZ);
if (t < ca->bic_K) /* below origin*/
bic_target = ca->bic_origin_point - delta;
else /* above origin*/
bic_target = ca->bic_origin_point + delta;
if (t < ca->bic_K) /* below origin*/
bic_target = ca->bic_origin_point - delta;
else /* above origin*/
bic_target = ca->bic_origin_point + delta;
/* cubic function - calc bictcp_cnt*/
if (bic_target > cwnd) {
/* cubic function - calc bictcp_cnt*/
if (bic_target > cwnd) {
ca->cnt = cwnd / (bic_target - cwnd);
} else {
ca->cnt = 100 * cwnd; /* very small increment*/
}
} else {
ca->cnt = 100 * cwnd; /* very small increment*/
}
if (ca->delay_min > 0) {
/* max increment = Smax * rtt / 0.1 */
@ -219,7 +219,7 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
ca->cnt = min_cnt;
}
/* slow start and low utilization */
/* slow start and low utilization */
if (ca->loss_cwnd == 0) /* could be aggressive in slow start */
ca->cnt = 50;
@ -227,9 +227,9 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
if (tcp_friendliness) {
u32 scale = beta_scale;
delta = (cwnd * scale) >> 3;
while (ca->ack_cnt > delta) { /* update tcp cwnd */
ca->ack_cnt -= delta;
ca->tcp_cwnd++;
while (ca->ack_cnt > delta) { /* update tcp cwnd */
ca->ack_cnt -= delta;
ca->tcp_cwnd++;
}
if (ca->tcp_cwnd > cwnd){ /* if bic is slower than tcp */
@ -238,7 +238,7 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
if (ca->cnt > max_cnt)
ca->cnt = max_cnt;
}
}
}
ca->cnt = (ca->cnt << ACK_RATIO_SHIFT) / ca->delayed_ack;
if (ca->cnt == 0) /* cannot be zero */