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Commit 59e4220a authored by Jarek Poplawski's avatar Jarek Poplawski Committed by David S. Miller
Browse files

pkt_sched: sch_htb: Replace HTB_ACCNT() macro with inlines 



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

Signed-off-by: default avatarJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 23cb913d

net/sched/sch_htb.c

+29 −9
Original line number Diff line number Diff line
@@ -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;