selftests: bpf: break up test_progs - spinlock

Move spinlock prog tests into separate files.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

tools/testing/selftests/bpf/prog_tests/map_lock.c

+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+static void *parallel_map_access(void *arg)
+{
+	int err, map_fd = *(u32 *) arg;
+	int vars[17], i, j, rnd, key = 0;
+
+	for (i = 0; i < 10000; i++) {
+		err = bpf_map_lookup_elem_flags(map_fd, &key, vars, BPF_F_LOCK);
+		if (err) {
+			printf("lookup failed\n");
+			error_cnt++;
+			goto out;
+		}
+		if (vars[0] != 0) {
+			printf("lookup #%d var[0]=%d\n", i, vars[0]);
+			error_cnt++;
+			goto out;
+		}
+		rnd = vars[1];
+		for (j = 2; j < 17; j++) {
+			if (vars[j] == rnd)
+				continue;
+			printf("lookup #%d var[1]=%d var[%d]=%d\n",
+			       i, rnd, j, vars[j]);
+			error_cnt++;
+			goto out;
+		}
+	}
+out:
+	pthread_exit(arg);
+}
+
+void test_map_lock(void)
+{
+	const char *file = "./test_map_lock.o";
+	int prog_fd, map_fd[2], vars[17] = {};
+	pthread_t thread_id[6];
+	struct bpf_object *obj;
+	int err = 0, key = 0, i;
+	void *ret;
+
+	err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
+	if (err) {
+		printf("test_map_lock:bpf_prog_load errno %d\n", errno);
+		goto close_prog;
+	}
+	map_fd[0] = bpf_find_map(__func__, obj, "hash_map");
+	if (map_fd[0] < 0)
+		goto close_prog;
+	map_fd[1] = bpf_find_map(__func__, obj, "array_map");
+	if (map_fd[1] < 0)
+		goto close_prog;
+
+	bpf_map_update_elem(map_fd[0], &key, vars, BPF_F_LOCK);
+
+	for (i = 0; i < 4; i++)
+		assert(pthread_create(&thread_id[i], NULL,
+				      &spin_lock_thread, &prog_fd) == 0);
+	for (i = 4; i < 6; i++)
+		assert(pthread_create(&thread_id[i], NULL,
+				      &parallel_map_access, &map_fd[i - 4]) == 0);
+	for (i = 0; i < 4; i++)
+		assert(pthread_join(thread_id[i], &ret) == 0 &&
+		       ret == (void *)&prog_fd);
+	for (i = 4; i < 6; i++)
+		assert(pthread_join(thread_id[i], &ret) == 0 &&
+		       ret == (void *)&map_fd[i - 4]);
+	goto close_prog_noerr;
+close_prog:
+	error_cnt++;
+close_prog_noerr:
+	bpf_object__close(obj);
+}

tools/testing/selftests/bpf/prog_tests/spinlock.c

+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_spinlock(void)
+{
+	const char *file = "./test_spin_lock.o";
+	pthread_t thread_id[4];
+	struct bpf_object *obj;
+	int prog_fd;
+	int err = 0, i;
+	void *ret;
+
+	err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
+	if (err) {
+		printf("test_spin_lock:bpf_prog_load errno %d\n", errno);
+		goto close_prog;
+	}
+	for (i = 0; i < 4; i++)
+		assert(pthread_create(&thread_id[i], NULL,
+				      &spin_lock_thread, &prog_fd) == 0);
+	for (i = 0; i < 4; i++)
+		assert(pthread_join(thread_id[i], &ret) == 0 &&
+		       ret == (void *)&prog_fd);
+	goto close_prog_noerr;
+close_prog:
+	error_cnt++;
+close_prog_noerr:
+	bpf_object__close(obj);
+}

tools/testing/selftests/bpf/test_progs.c

@@ -829,7 +829,7 @@ static void test_flow_dissector(void)
 	bpf_object__close(obj);
 }
 
-static void *test_spin_lock(void *arg)
+void *spin_lock_thread(void *arg)
 {
 	__u32 duration, retval;
 	int err, prog_fd = *(u32 *) arg;
@@ -842,106 +842,6 @@ static void *test_spin_lock(void *arg)
 	pthread_exit(arg);
 }
 
-static void test_spinlock(void)
-{
-	const char *file = "./test_spin_lock.o";
-	pthread_t thread_id[4];
-	struct bpf_object *obj;
-	int prog_fd;
-	int err = 0, i;
-	void *ret;
-
-	err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
-	if (err) {
-		printf("test_spin_lock:bpf_prog_load errno %d\n", errno);
-		goto close_prog;
-	}
-	for (i = 0; i < 4; i++)
-		assert(pthread_create(&thread_id[i], NULL,
-				      &test_spin_lock, &prog_fd) == 0);
-	for (i = 0; i < 4; i++)
-		assert(pthread_join(thread_id[i], &ret) == 0 &&
-		       ret == (void *)&prog_fd);
-	goto close_prog_noerr;
-close_prog:
-	error_cnt++;
-close_prog_noerr:
-	bpf_object__close(obj);
-}
-
-static void *parallel_map_access(void *arg)
-{
-	int err, map_fd = *(u32 *) arg;
-	int vars[17], i, j, rnd, key = 0;
-
-	for (i = 0; i < 10000; i++) {
-		err = bpf_map_lookup_elem_flags(map_fd, &key, vars, BPF_F_LOCK);
-		if (err) {
-			printf("lookup failed\n");
-			error_cnt++;
-			goto out;
-		}
-		if (vars[0] != 0) {
-			printf("lookup #%d var[0]=%d\n", i, vars[0]);
-			error_cnt++;
-			goto out;
-		}
-		rnd = vars[1];
-		for (j = 2; j < 17; j++) {
-			if (vars[j] == rnd)
-				continue;
-			printf("lookup #%d var[1]=%d var[%d]=%d\n",
-			       i, rnd, j, vars[j]);
-			error_cnt++;
-			goto out;
-		}
-	}
-out:
-	pthread_exit(arg);
-}
-
-static void test_map_lock(void)
-{
-	const char *file = "./test_map_lock.o";
-	int prog_fd, map_fd[2], vars[17] = {};
-	pthread_t thread_id[6];
-	struct bpf_object *obj;
-	int err = 0, key = 0, i;
-	void *ret;
-
-	err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
-	if (err) {
-		printf("test_map_lock:bpf_prog_load errno %d\n", errno);
-		goto close_prog;
-	}
-	map_fd[0] = bpf_find_map(__func__, obj, "hash_map");
-	if (map_fd[0] < 0)
-		goto close_prog;
-	map_fd[1] = bpf_find_map(__func__, obj, "array_map");
-	if (map_fd[1] < 0)
-		goto close_prog;
-
-	bpf_map_update_elem(map_fd[0], &key, vars, BPF_F_LOCK);
-
-	for (i = 0; i < 4; i++)
-		assert(pthread_create(&thread_id[i], NULL,
-				      &test_spin_lock, &prog_fd) == 0);
-	for (i = 4; i < 6; i++)
-		assert(pthread_create(&thread_id[i], NULL,
-				      &parallel_map_access, &map_fd[i - 4]) == 0);
-	for (i = 0; i < 4; i++)
-		assert(pthread_join(thread_id[i], &ret) == 0 &&
-		       ret == (void *)&prog_fd);
-	for (i = 4; i < 6; i++)
-		assert(pthread_join(thread_id[i], &ret) == 0 &&
-		       ret == (void *)&map_fd[i - 4]);
-	goto close_prog_noerr;
-close_prog:
-	error_cnt++;
-close_prog_noerr:
-	bpf_object__close(obj);
-}
-
 static void sigalrm_handler(int s) {}
 static struct sigaction sigalrm_action = {
 	.sa_handler = sigalrm_handler,
@@ -1004,8 +904,6 @@ int main(void)
 	test_queue_stack_map(QUEUE);
 	test_queue_stack_map(STACK);
 	test_flow_dissector();
-	test_spinlock();
-	test_map_lock();
 	test_signal_pending(BPF_PROG_TYPE_SOCKET_FILTER);
 	test_signal_pending(BPF_PROG_TYPE_FLOW_DISSECTOR);
 

tools/testing/selftests/bpf/test_progs.h

@@ -85,3 +85,4 @@ int bpf_find_map(const char *test, struct bpf_object *obj, const char *name);
 int compare_map_keys(int map1_fd, int map2_fd);
 int compare_stack_ips(int smap_fd, int amap_fd, int stack_trace_len);
 int extract_build_id(char *build_id, size_t size);
+void *spin_lock_thread(void *arg);