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authorLinus Torvalds <torvalds@linux-foundation.org>2008-03-24 13:07:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-03-24 13:07:24 -0700
commitca1a6ba57c5fca755b4ac7a13395bca2e2e371b1 (patch)
tree1dd8f5090238d644668818c54f9f91b1c5665991 /net/sched/sch_htb.c
parentSVCRDMA: Use only 1 RDMA read scatter entry for iWARP adapters (diff)
parentsch_htb: fix "too many events" situation (diff)
downloadlinux-dev-ca1a6ba57c5fca755b4ac7a13395bca2e2e371b1.tar.xz
linux-dev-ca1a6ba57c5fca755b4ac7a13395bca2e2e371b1.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: sch_htb: fix "too many events" situation connector: convert to single-threaded workqueue [ATM]: When proc_create() fails, do some error handling work and return -ENOMEM. [SUNGEM]: Fix NAPI assertion failure. BNX2X: prevent ethtool from setting port type [9P] net/9p/trans_fd.c: remove unused variable [IPV6] net/ipv6/ndisc.c: remove unused variable [IPV4] fib_trie: fix warning from rcu_assign_poinger [TCP]: Let skbs grow over a page on fast peers [DLCI]: Fix tiny race between module unload and sock_ioctl. [SCTP]: Fix build warnings with IPV6 disabled. [IPV4]: Fix null dereference in ip_defrag
Diffstat (limited to 'net/sched/sch_htb.c')
-rw-r--r--net/sched/sch_htb.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 795c761ad99f..66148cc4759e 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -711,9 +711,11 @@ static void htb_charge_class(struct htb_sched *q, struct htb_class *cl,
*/
static psched_time_t htb_do_events(struct htb_sched *q, int level)
{
- int i;
-
- for (i = 0; i < 500; i++) {
+ /* don't run for longer than 2 jiffies; 2 is used instead of
+ 1 to simplify things when jiffy is going to be incremented
+ too soon */
+ unsigned long stop_at = jiffies + 2;
+ while (time_before(jiffies, stop_at)) {
struct htb_class *cl;
long diff;
struct rb_node *p = rb_first(&q->wait_pq[level]);
@@ -731,9 +733,8 @@ static psched_time_t htb_do_events(struct htb_sched *q, int level)
if (cl->cmode != HTB_CAN_SEND)
htb_add_to_wait_tree(q, cl, diff);
}
- if (net_ratelimit())
- printk(KERN_WARNING "htb: too many events !\n");
- return q->now + PSCHED_TICKS_PER_SEC / 10;
+ /* too much load - let's continue on next jiffie */
+ return q->now + PSCHED_TICKS_PER_SEC / HZ;
}
/* Returns class->node+prio from id-tree where classe's id is >= id. NULL