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| author | Jarek Poplawski <jarkao2@gmail.com> | 2009-02-01 01:12:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-02-01 01:12:42 -0800 |
| commit | b00355db3f88d96810a60011a30cfb2c3469409d (patch) | |
| tree | 43331c769665e619892d8f97a38ce1d12b3a6363 /net/sched | |
| parent | eefef1cf7653cd4e0aaf743c00ae8345086cdc01 (diff) | |
| download | blackbird-op-linux-b00355db3f88d96810a60011a30cfb2c3469409d.tar.gz blackbird-op-linux-b00355db3f88d96810a60011a30cfb2c3469409d.zip | |
pkt_sched: sch_hfsc: sch_htb: Add non-work-conserving warning handler.
Patrick McHardy <kaber@trash.net> suggested:
> How about making this flag and the warning message (in a out-of-line
> function) globally available? Other qdiscs (f.i. HFSC) can't deal with
> inner non-work-conserving qdiscs as well.
This patch uses qdisc->flags field of "suspected" child qdisc.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/sch_api.c | 11 | ||||
| -rw-r--r-- | net/sched/sch_hfsc.c | 6 | ||||
| -rw-r--r-- | net/sched/sch_htb.c | 9 |
3 files changed, 14 insertions, 12 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 0fc4a18fd96f..32009793307b 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -444,6 +444,17 @@ out: } EXPORT_SYMBOL(qdisc_calculate_pkt_len); +void qdisc_warn_nonwc(char *txt, struct Qdisc *qdisc) +{ + if (!(qdisc->flags & TCQ_F_WARN_NONWC)) { + printk(KERN_WARNING + "%s: %s qdisc %X: is non-work-conserving?\n", + txt, qdisc->ops->id, qdisc->handle >> 16); + qdisc->flags |= TCQ_F_WARN_NONWC; + } +} +EXPORT_SYMBOL(qdisc_warn_nonwc); + static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer) { struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog, diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index 45c31b1a4e1d..74226b265528 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -887,8 +887,7 @@ qdisc_peek_len(struct Qdisc *sch) skb = sch->ops->peek(sch); if (skb == NULL) { - if (net_ratelimit()) - printk("qdisc_peek_len: non work-conserving qdisc ?\n"); + qdisc_warn_nonwc("qdisc_peek_len", sch); return 0; } len = qdisc_pkt_len(skb); @@ -1642,8 +1641,7 @@ hfsc_dequeue(struct Qdisc *sch) skb = qdisc_dequeue_peeked(cl->qdisc); if (skb == NULL) { - if (net_ratelimit()) - printk("HFSC: Non-work-conserving qdisc ?\n"); + qdisc_warn_nonwc("HFSC", cl->qdisc); return NULL; } diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 2f0f0b04d3fb..77ff510ef8ac 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -114,8 +114,6 @@ struct htb_class { struct tcf_proto *filter_list; int filter_cnt; - int warned; /* only one warning about non work conserving .. */ - /* token bucket parameters */ struct qdisc_rate_table *rate; /* rate table of the class itself */ struct qdisc_rate_table *ceil; /* ceiling rate (limits borrows too) */ @@ -809,13 +807,8 @@ next: skb = cl->un.leaf.q->dequeue(cl->un.leaf.q); if (likely(skb != NULL)) break; - if (!cl->warned) { - printk(KERN_WARNING - "htb: class %X isn't work conserving ?!\n", - cl->common.classid); - cl->warned = 1; - } + qdisc_warn_nonwc("htb", cl->un.leaf.q); htb_next_rb_node((level ? cl->parent->un.inner.ptr : q-> ptr[0]) + prio); cl = htb_lookup_leaf(q->row[level] + prio, prio, |
