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-rw-r--r--net/sched/sch_sfq.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 957957309859..3a23e30bc79e 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -270,7 +270,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc* sch)
270 q->tail = x; 270 q->tail = x;
271 } 271 }
272 } 272 }
273 if (++sch->q.qlen < q->limit-1) { 273 if (++sch->q.qlen <= q->limit) {
274 sch->bstats.bytes += skb->len; 274 sch->bstats.bytes += skb->len;
275 sch->bstats.packets++; 275 sch->bstats.packets++;
276 return 0; 276 return 0;
@@ -306,7 +306,7 @@ sfq_requeue(struct sk_buff *skb, struct Qdisc* sch)
306 q->tail = x; 306 q->tail = x;
307 } 307 }
308 } 308 }
309 if (++sch->q.qlen < q->limit - 1) { 309 if (++sch->q.qlen <= q->limit) {
310 sch->qstats.requeues++; 310 sch->qstats.requeues++;
311 return 0; 311 return 0;
312 } 312 }
@@ -391,10 +391,10 @@ static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
391 q->quantum = ctl->quantum ? : psched_mtu(sch->dev); 391 q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
392 q->perturb_period = ctl->perturb_period*HZ; 392 q->perturb_period = ctl->perturb_period*HZ;
393 if (ctl->limit) 393 if (ctl->limit)
394 q->limit = min_t(u32, ctl->limit, SFQ_DEPTH); 394 q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 2);
395 395
396 qlen = sch->q.qlen; 396 qlen = sch->q.qlen;
397 while (sch->q.qlen >= q->limit-1) 397 while (sch->q.qlen > q->limit)
398 sfq_drop(sch); 398 sfq_drop(sch);
399 qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen); 399 qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);
400 400
@@ -423,7 +423,7 @@ static int sfq_init(struct Qdisc *sch, struct rtattr *opt)
423 q->dep[i+SFQ_DEPTH].next = i+SFQ_DEPTH; 423 q->dep[i+SFQ_DEPTH].next = i+SFQ_DEPTH;
424 q->dep[i+SFQ_DEPTH].prev = i+SFQ_DEPTH; 424 q->dep[i+SFQ_DEPTH].prev = i+SFQ_DEPTH;
425 } 425 }
426 q->limit = SFQ_DEPTH; 426 q->limit = SFQ_DEPTH - 2;
427 q->max_depth = 0; 427 q->max_depth = 0;
428 q->tail = SFQ_DEPTH; 428 q->tail = SFQ_DEPTH;
429 if (opt == NULL) { 429 if (opt == NULL) {