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pkt_sched: sch_htb: Replace HTB_ACCNT() macro with inlines 

Replace HTB_ACCNT() macro with inlines to make it more readable.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski 2008-12-03 21:17:27 -08:00 committed by David S. Miller
parent 23cb913d25
commit 59e4220a11
1 changed files with 29 additions and 9 deletions
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38
net/sched/sch_htb.c
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@ -577,6 +577,32 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch)
return NET_XMIT_SUCCESS;
}
static inline void htb_accnt_tokens(struct htb_class *cl, int bytes, long diff)
{
long toks = diff + cl->tokens;
if (toks > cl->buffer)
toks = cl->buffer;
toks -= (long) qdisc_l2t(cl->rate, bytes);
if (toks <= -cl->mbuffer)
toks = 1 - cl->mbuffer;
cl->tokens = toks;
}
static inline void htb_accnt_ctokens(struct htb_class *cl, int bytes, long diff)
{
long toks = diff + cl->ctokens;
if (toks > cl->cbuffer)
toks = cl->cbuffer;
toks -= (long) qdisc_l2t(cl->ceil, bytes);
if (toks <= -cl->mbuffer)
toks = 1 - cl->mbuffer;
cl->ctokens = toks;
}
/**
* htb_charge_class - charges amount "bytes" to leaf and ancestors
*
@ -592,26 +618,20 @@ static void htb_charge_class(struct htb_sched *q, struct htb_class *cl,
int level, struct sk_buff *skb)
{
int bytes = qdisc_pkt_len(skb);
long toks, diff;
enum htb_cmode old_mode;
#define HTB_ACCNT(T,B,R) toks = diff + cl->T; \
if (toks > cl->B) toks = cl->B; \
toks -= (long) qdisc_l2t(cl->R, bytes); \
if (toks <= -cl->mbuffer) toks = 1-cl->mbuffer; \
cl->T = toks
long diff;
while (cl) {
diff = psched_tdiff_bounded(q->now, cl->t_c, cl->mbuffer);
if (cl->level >= level) {
if (cl->level == level)
cl->xstats.lends++;
HTB_ACCNT(tokens, buffer, rate);
htb_accnt_tokens(cl, bytes, diff);
} else {
cl->xstats.borrows++;
cl->tokens += diff; /* we moved t_c; update tokens */
}
HTB_ACCNT(ctokens, cbuffer, ceil);
htb_accnt_ctokens(cl, bytes, diff);
cl->t_c = q->now;
old_mode = cl->cmode;