[PATCH v4] tests/fcntl.c: add test for struct f_owner_ex

[Zhibin Li]

*tests/fcntl.c (test_f_owner_ex_type_pid)
(is_esrch_test_f_owner_ex, test_f_owner_ex): New functions.
(main): Use test_f_owner_ex.
---
 tests/fcntl.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/tests/fcntl.c b/tests/fcntl.c
index 4f62ca2a..7bbf2024 100644
--- a/tests/fcntl.c
+++ b/tests/fcntl.c
@@ -69,12 +69,48 @@ test_flock64(void)
 #endif
 }
 
+static long
+test_f_owner_ex_type_pid(const int cmd, const char *const cmd_name,
+			 const int type, const char *const type_name,
+			 const pid_t pid)
+{
+	struct f_owner_ex fo = { .type = type, .pid = pid };
+
+	long rc = invoke_test_syscall(cmd, &fo);
+	printf("%s(0, %s, {type=%s, pid=%d}) = %s\n",
+	       TEST_SYSCALL_STR, cmd_name, type_name, pid, sprintrc(rc));
+	return rc;
+}
+
+static void
+is_esrch_test_f_owner_ex(const int type, const char *const type_name,
+			 pid_t pid)
+{
+	long rc = test_f_owner_ex_type_pid(ARG_STR(F_SETOWN_EX),
+				 type, type_name, pid);
+	if (!rc)
+		test_f_owner_ex_type_pid(ARG_STR(F_GETOWN_EX),
+					 type, type_name, pid);
+}
+
+static void
+test_f_owner_ex(void)
+{
+	is_esrch_test_f_owner_ex(ARG_STR(F_OWNER_TID), 1234567890);
+	is_esrch_test_f_owner_ex(ARG_STR(F_OWNER_PID), 1298126790);
+	is_esrch_test_f_owner_ex(ARG_STR(F_OWNER_PGRP), 1294567890);
+	is_esrch_test_f_owner_ex(ARG_STR(F_OWNER_TID), 20);
+	is_esrch_test_f_owner_ex(ARG_STR(F_OWNER_PID), 30);
+	is_esrch_test_f_owner_ex(ARG_STR(F_OWNER_PGRP), 40);
+}
+
 int
 main(void)
 {
 	create_sample();
 	test_flock();
 	test_flock64();
+	test_f_owner_ex();
 
 	puts("+++ exited with 0 +++");
 	return 0;
-- 
2.14.3