pkt_sched: sch_htb: Warn on too many events.

[pandora-kernel.git] / net / sched / sch_htb.c

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 77ff510..826f921 100644 (file)
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -153,6 +153,9 @@ struct htb_sched {
        int direct_qlen;        /* max qlen of above */
 
        long direct_pkts;
+
+#define HTB_WARN_TOOMANYEVENTS 0x1
+       unsigned int warned;    /* only one warning */
 };
 
 /* find class in global hash table using given handle */
@@ -685,6 +688,10 @@ static psched_time_t htb_do_events(struct htb_sched *q, int level,
                        htb_add_to_wait_tree(q, cl, diff);
        }
        /* too much load - let's continue on next jiffie (including above) */
+       if (!(q->warned & HTB_WARN_TOOMANYEVENTS)) {
+               printk(KERN_WARNING "htb: too many events!\n");
+               q->warned |= HTB_WARN_TOOMANYEVENTS;
+       }
        return q->now + 2 * PSCHED_TICKS_PER_SEC / HZ;
 }