[PATCH v2 net-next] selftests: rtnetlink: try concurrent change of ifalias

[PATCH v2 net-next] selftests: rtnetlink: try concurrent change of ifalias

[Florian Westphal]

to make sure this is serialized correctly.

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 change since v1:
 Eric points out 'wait' blocks for all current children, so no need
 for another loop.

 tools/testing/selftests/net/rtnetlink.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 62c87da92770..e8c86c416ed0 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -278,6 +278,12 @@ kci_test_ifalias()
 	        ip link show "$devdummy" | grep -q "alias $namewant"
 		check_fail $?
 
+		for i in $(seq 1 100); do
+			uuidgen > "$syspathname" &
+		done
+
+		wait
+
 		# re-add the alias -- kernel should free mem when dummy dev is removed
 		ip link set dev "$devdummy" alias "$namewant"
 		check_err $?
-- 
2.13.6

Re: [PATCH v2 net-next] selftests: rtnetlink: try concurrent change of ifalias

[David Miller]

From: Florian Westphal <fw@strlen.de>
Date: Wed,  4 Oct 2017 16:22:59 +0200

> to make sure this is serialized correctly.
> 
> Signed-off-by: Florian Westphal <fw@strlen.de>
> ---
>  change since v1:
>  Eric points out 'wait' blocks for all current children, so no need
>  for another loop.

Applied.