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ip: Use inline function dst_metric() instead of direct access to dst->metric[]

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There are functions to refer to the value of dst->metric[THE_METRIC-1]
directly without use of a inline function "dst_metric" defined in
net/dst.h.

The following patch changes them to use the inline function
consistently.

Signed-off-by: Satoru SATOH <satoru.satoh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Satoru SATOH
2008-05-04 22:14:42 -07:00
committed by David S. Miller
parent 0bbeafd011
commit 5ffc02a158
4 changed files with 25 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
net/ipv4/tcp_input.c
View File

@ -66,6 +66,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/sysctl.h>
#include <net/dst.h>
#include <net/tcp.h>
#include <net/inet_common.h>
#include <linux/ipsec.h>
@ -605,7 +606,7 @@ static u32 tcp_rto_min(struct sock *sk)
u32 rto_min = TCP_RTO_MIN;
if (dst && dst_metric_locked(dst, RTAX_RTO_MIN))
rto_min = dst->metrics[RTAX_RTO_MIN - 1];
rto_min = dst_metric(dst, RTAX_RTO_MIN);
return rto_min;
}
@ -769,7 +770,7 @@ void tcp_update_metrics(struct sock *sk)
dst->metrics[RTAX_RTTVAR - 1] = m;
else
dst->metrics[RTAX_RTTVAR-1] -=
(dst->metrics[RTAX_RTTVAR-1] - m)>>2;
(dst_metric(dst, RTAX_RTTVAR) - m)>>2;
}
if (tp->snd_ssthresh >= 0xFFFF) {
@ -788,21 +789,21 @@ void tcp_update_metrics(struct sock *sk)
dst->metrics[RTAX_SSTHRESH-1] =
max(tp->snd_cwnd >> 1, tp->snd_ssthresh);
if (!dst_metric_locked(dst, RTAX_CWND))
dst->metrics[RTAX_CWND-1] = (dst->metrics[RTAX_CWND-1] + tp->snd_cwnd) >> 1;
dst->metrics[RTAX_CWND-1] = (dst_metric(dst, RTAX_CWND) + tp->snd_cwnd) >> 1;
} else {
/* Else slow start did not finish, cwnd is non-sense,
ssthresh may be also invalid.
*/
if (!dst_metric_locked(dst, RTAX_CWND))
dst->metrics[RTAX_CWND-1] = (dst->metrics[RTAX_CWND-1] + tp->snd_ssthresh) >> 1;
if (dst->metrics[RTAX_SSTHRESH-1] &&
dst->metrics[RTAX_CWND-1] = (dst_metric(dst, RTAX_CWND) + tp->snd_ssthresh) >> 1;
if (dst_metric(dst, RTAX_SSTHRESH) &&
!dst_metric_locked(dst, RTAX_SSTHRESH) &&
tp->snd_ssthresh > dst->metrics[RTAX_SSTHRESH-1])
tp->snd_ssthresh > dst_metric(dst, RTAX_SSTHRESH))
dst->metrics[RTAX_SSTHRESH-1] = tp->snd_ssthresh;
}
if (!dst_metric_locked(dst, RTAX_REORDERING)) {
if (dst->metrics[RTAX_REORDERING-1] < tp->reordering &&
if (dst_metric(dst, RTAX_REORDERING) < tp->reordering &&
tp->reordering != sysctl_tcp_reordering)
dst->metrics[RTAX_REORDERING-1] = tp->reordering;
}