Re: [PATCH net] net/sched: sch_cake: fix autorate reconfiguration throttling
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From: Paolo Abeni <pabeni@redhat.com>
Date: 2026-08-20 13:07:19
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On 8/16/26 3:21 AM, ooonea wrote:
CAKE's autorate-ingress path intends to limit shaper reconfiguration to
once per 250 ms, but last_reconfig_time is only checked and never updated.
Since the field stays zero, every qualifying capacity-estimate window can
call cake_reconfigure(), causing avoidable rate churn and scheduler work
under bursty traffic.
Store the current timestamp when autorate actually reconfigures the qdisc
so the guard enforces the intended interval.
Fixes: 7298de9cd725 ("sch_cake: Add ingress mode")
Assisted-by: Codex:gpt-5.5
Signed-off-by: ooonea <redacted>The SoB must contain your real full name, and not a nick. /P