Commit ca4fa874 authored Jun 20, 2023 by renmingshuai Committed by Jakub Kicinski Jun 21, 2023

selftests: tc-testing: add one test for flushing explicitly created chain



Add the test for additional reference to chains that are explicitly
created by RTM_NEWCHAIN message.

The test result:

 1..1
 ok 1 c2b4 - soft lockup alarm will be not generated after delete the prio 0
  filter of the chain

This is a follow up to commit c9a82bec ("net/sched: cls_api: Fix lockup on flushing explicitly created chain").

Signed-off-by: Mingshuai Ren <renmingshuai@huawei.com>
Acked-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Victor Nogueira <victor@mojatatu.com>
Link: https://lore.kernel.org/r/20230620014939.2034054-1-renmingshuai@huawei.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>

parent 1ca09f57

tools/testing/selftests/tc-testing/tc-tests/infra/filter.json

0 → 100644

+25 −0

Original line number	Diff line number	Diff line
		[
		{
		"id": "c2b4",
		"name": "soft lockup alarm will be not generated after delete the prio 0 filter of the chain",
		"category": [
		"filter",
		"chain"
		],
		"setup": [
		"$IP link add dev $DUMMY type dummy \|\| /bin/true",
		"$TC qdisc add dev $DUMMY root handle 1: htb default 1",
		"$TC chain add dev $DUMMY",
		"$TC filter del dev $DUMMY chain 0 parent 1: prio 0"
		],
		"cmdUnderTest": "$TC filter add dev $DUMMY chain 0 parent 1:",
		"expExitCode": "2",
		"verifyCmd": "$TC chain ls dev $DUMMY",
		"matchPattern": "chain parent 1: chain 0",
		"matchCount": "1",
		"teardown": [
		"$TC qdisc del dev $DUMMY root handle 1: htb default 1",
		"$IP link del dev $DUMMY type dummy"
		]
		}
		]