55 	int pidfd;  in FIXTURE()  local
75 pid_t create_child(int *pidfd, unsigned flags)  in create_child()  argument
80 		.pidfd		= ptr_to_u64(pidfd),  in create_child()
153 	self->pidfd = sys_pidfd_open(self->pid, 0);  in FIXTURE_SETUP()
154 	EXPECT_GT(self->pidfd, 0) {  in FIXTURE_SETUP()
168 	self->pidfd = sys_pidfd_open(self->pid, 0);  in FIXTURE_SETUP()
169 	EXPECT_GE(self->pidfd, 0) {  in FIXTURE_SETUP()
345 	ASSERT_NE(setns(self->pidfd, 0), 0);  in TEST_F()
348 	ASSERT_NE(setns(self->pidfd, -1), 0);  in TEST_F()
351 	ASSERT_NE(setns(self->pidfd, CLONE_VM), 0);  in TEST_F()
354 	ASSERT_NE(setns(self->pidfd, CLONE_NEWUSER | CLONE_VM), 0);  in TEST_F()