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authorDavid S. Miller <davem@davemloft.net>2010-12-20 13:24:14 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-20 13:24:14 -0800
commitd9993be65a77f500ae926176baa264816bfe3816 (patch)
treebbb8c86114bf86e5ca3d1fbf89de3d98be5519ba /net/sched/sch_sfq.c
parentc4266263249f22479eb1abb1a1709c38240b1597 (diff)
parentaa3e219997e4b949be4199660936099ded0b401f (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'net/sched/sch_sfq.c')
-rw-r--r--net/sched/sch_sfq.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index cb331dea7fe..42396c965dd 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -270,7 +270,6 @@ static unsigned int sfq_drop(struct Qdisc *sch)
/* It is difficult to believe, but ALL THE SLOTS HAVE LENGTH 1. */
d = q->next[q->tail];
q->next[q->tail] = q->next[d];
- q->allot[q->next[d]] += q->quantum;
skb = q->qs[d].prev;
len = qdisc_pkt_len(skb);
__skb_unlink(skb, &q->qs[d]);
@@ -321,14 +320,13 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
sfq_inc(q, x);
if (q->qs[x].qlen == 1) { /* The flow is new */
if (q->tail == SFQ_DEPTH) { /* It is the first flow */
- q->tail = x;
q->next[x] = x;
- q->allot[x] = q->quantum;
} else {
q->next[x] = q->next[q->tail];
q->next[q->tail] = x;
- q->tail = x;
}
+ q->tail = x;
+ q->allot[x] = q->quantum;
}
if (++sch->q.qlen <= q->limit) {
sch->bstats.bytes += qdisc_pkt_len(skb);
@@ -359,13 +357,13 @@ sfq_dequeue(struct Qdisc *sch)
{
struct sfq_sched_data *q = qdisc_priv(sch);
struct sk_buff *skb;
- sfq_index a, old_a;
+ sfq_index a, next_a;
/* No active slots */
if (q->tail == SFQ_DEPTH)
return NULL;
- a = old_a = q->next[q->tail];
+ a = q->next[q->tail];
/* Grab packet */
skb = __skb_dequeue(&q->qs[a]);
@@ -376,17 +374,15 @@ sfq_dequeue(struct Qdisc *sch)
/* Is the slot empty? */
if (q->qs[a].qlen == 0) {
q->ht[q->hash[a]] = SFQ_DEPTH;
- a = q->next[a];
- if (a == old_a) {
+ next_a = q->next[a];
+ if (a == next_a) {
q->tail = SFQ_DEPTH;
return skb;
}
- q->next[q->tail] = a;
- q->allot[a] += q->quantum;
+ q->next[q->tail] = next_a;
} else if ((q->allot[a] -= qdisc_pkt_len(skb)) <= 0) {
- q->tail = a;
- a = q->next[a];
q->allot[a] += q->quantum;
+ q->tail = a;
}
return skb;
}