selftests/net: optmem_max became per netns

/proc/sys/net/core/optmem_max is now per netns, change two tests
that were saving/changing/restoring its value on the parent netns.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/io_uring_zerocopy_tx.sh b/tools/testing/selftests/net/io_uring_zerocopy_tx.sh
index 9ac4456d48fcc6c3517ea7055c757102ff38d0a5..123439545013d0293464e16337fde10452d9e1e2 100755 (executable)
--- a/tools/testing/selftests/net/io_uring_zerocopy_tx.sh
+++ b/tools/testing/selftests/net/io_uring_zerocopy_tx.sh
@@ -76,23 +76,22 @@ case "${TXMODE}" in
 esac
 
 # Start of state changes: install cleanup handler
-save_sysctl_mem="$(sysctl -n ${path_sysctl_mem})"
 
 cleanup() {
        ip netns del "${NS2}"
        ip netns del "${NS1}"
-       sysctl -w -q "${path_sysctl_mem}=${save_sysctl_mem}"
 }
 
 trap cleanup EXIT
 
-# Configure system settings
-sysctl -w -q "${path_sysctl_mem}=1000000"
-
 # Create virtual ethernet pair between network namespaces
 ip netns add "${NS1}"
 ip netns add "${NS2}"
 
+# Configure system settings
+ip netns exec "${NS1}" sysctl -w -q "${path_sysctl_mem}=1000000"
+ip netns exec "${NS2}" sysctl -w -q "${path_sysctl_mem}=1000000"
+
 ip link add "${DEV}" mtu "${DEV_MTU}" netns "${NS1}" type veth \
   peer name "${DEV}" mtu "${DEV_MTU}" netns "${NS2}"
 

diff --git a/tools/testing/selftests/net/msg_zerocopy.sh b/tools/testing/selftests/net/msg_zerocopy.sh
index 825ffec85cea3e23cd672541bb331302f6c66aa0..89c22f5320e0d603ae7ca7ca2b64ebd83bb8979a 100755 (executable)
--- a/tools/testing/selftests/net/msg_zerocopy.sh
+++ b/tools/testing/selftests/net/msg_zerocopy.sh
@@ -70,23 +70,22 @@ case "${TXMODE}" in
 esac
 
 # Start of state changes: install cleanup handler
-save_sysctl_mem="$(sysctl -n ${path_sysctl_mem})"
 
 cleanup() {
        ip netns del "${NS2}"
        ip netns del "${NS1}"
-       sysctl -w -q "${path_sysctl_mem}=${save_sysctl_mem}"
 }
 
 trap cleanup EXIT
 
-# Configure system settings
-sysctl -w -q "${path_sysctl_mem}=1000000"
-
 # Create virtual ethernet pair between network namespaces
 ip netns add "${NS1}"
 ip netns add "${NS2}"
 
+# Configure system settings
+ip netns exec "${NS1}" sysctl -w -q "${path_sysctl_mem}=1000000"
+ip netns exec "${NS2}" sysctl -w -q "${path_sysctl_mem}=1000000"
+
 ip link add "${DEV}" mtu "${DEV_MTU}" netns "${NS1}" type veth \
   peer name "${DEV}" mtu "${DEV_MTU}" netns "${NS2}"