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tc: policing requires a rate estimator

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Found that while trying average rate policing, it was possible to
request average rate policing without a rate estimator. This results
in no policing which is harmless but incorrect.

Since policing could be setup in two steps, need to check
in the kernel.

Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Stephen Hemminger 2008-11-25 21:14:06 -08:00 • committed by David S. Miller
commit c1b56878fb
3 changed files with 34 additions and 3 deletions
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6
net/sched/act_police.c
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@ -182,6 +182,12 @@ override:
R_tab = qdisc_get_rtab(&parm->rate, tb[TCA_POLICE_RATE]);
if (R_tab == NULL)
goto failure;
if (!est && !gen_estimator_active(&police->tcf_rate_est)) {
err = -EINVAL;
goto failure;
}
if (parm->peakrate.rate) {
P_tab = qdisc_get_rtab(&parm->peakrate,
tb[TCA_POLICE_PEAKRATE]);