linux-7.2 can filter "tc qdisc show ..." on tcm_handle / tcm_parent and reduce dump costs. Old kernels ignore these values. Signed-off-by: Eric Dumazet Cc: Jamal Hadi Salim --- tc/tc_qdisc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tc/tc_qdisc.c b/tc/tc_qdisc.c index b3c395b65c2f6b47abbcb6aa37b7dc1f080032e8..7c3e7cb36b4830bca9f2785a58b38d319ec4b563 100644 --- a/tc/tc_qdisc.c +++ b/tc/tc_qdisc.c @@ -408,6 +408,9 @@ static int tc_qdisc_list(int argc, char **argv) argc--; argv++; } + /* Recent kernels (7.2+) can filter on tcm_parent/tcm_handle */ + req.t.tcm_parent = filter_parent; + req.t.tcm_handle = filter_handle; if (d[0]) { req.t.tcm_ifindex = ll_name_to_index(d); -- 2.54.0.545.g6539524ca2-goog