selftests/net: convert stress_reuseport_listen.sh to run it in unique namespace

Here is the test result after conversion.

 # ./stress_reuseport_listen.sh
 listen 24000 socks took 0.47714

Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/stress_reuseport_listen.sh b/tools/testing/selftests/net/stress_reuseport_listen.sh
index 4de11da4092b159099afa0e398cf2fec453b7317..94d5d1a1c90fd3018e90435db2192ffb0b1ff9a0 100755 (executable)
--- a/tools/testing/selftests/net/stress_reuseport_listen.sh
+++ b/tools/testing/selftests/net/stress_reuseport_listen.sh
@@ -2,18 +2,18 @@
 # SPDX-License-Identifier: GPL-2.0
 # Copyright (c) 2022 Meta Platforms, Inc. and affiliates.
 
-NS='stress_reuseport_listen_ns'
+source lib.sh
 NR_FILES=24100
 SAVED_NR_FILES=$(ulimit -n)
 
 setup() {
-       ip netns add $NS
+       setup_ns NS
        ip netns exec $NS sysctl -q -w net.ipv6.ip_nonlocal_bind=1
        ulimit -n $NR_FILES
 }
 
 cleanup() {
-       ip netns del $NS
+       cleanup_ns $NS
        ulimit -n $SAVED_NR_FILES
 }