Commit c047e0e0 authored by Bastien Curutchet (eBPF Foundation)'s avatar Bastien Curutchet (eBPF Foundation) Committed by Alexei Starovoitov
Browse files

selftests/bpf: Optionally open a dedicated namespace to run test in it 



Some tests are serialized to prevent interference with others.

Open a dedicated network namespace when a test name starts with 'ns_' to
allow more test parallelization. Use the test name as namespace name to
avoid conflict between namespaces.

Signed-off-by: default avatarBastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Link: https://lore.kernel.org/r/20250219-b4-tc_links-v2-2-14504db136b7@bootlin.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 4a06c525

tools/testing/selftests/bpf/test_progs.c

+12 −0
Original line number Diff line number Diff line
@@ -1365,10 +1365,19 @@ static int recv_message(int sock, struct msg *msg) 
	return ret;

}



static bool ns_is_needed(const char *test_name)

{

	if (strlen(test_name) < 3)

		return false;



	return !strncmp(test_name, "ns_", 3);

}



static void run_one_test(int test_num)

{

	struct prog_test_def *test = &prog_test_defs[test_num];

	struct test_state *state = &test_states[test_num];

	struct netns_obj *ns = NULL;



	env.test = test;

	env.test_state = state;
@@ -1376,10 +1385,13 @@ static void run_one_test(int test_num) 
	stdio_hijack(&state->log_buf, &state->log_cnt);



	watchdog_start();

	if (ns_is_needed(test->test_name))

		ns = netns_new(test->test_name, true);

	if (test->run_test)

		test->run_test();

	else if (test->run_serial_test)

		test->run_serial_test();

	netns_free(ns);

	watchdog_stop();



	/* ensure last sub-test is finalized properly */