test/msg_ring: test msg_ring to a disabled ring
A regression test trying to message IORING_SETUP_R_DISABLED rings.
Link:
@@ -191,6 +191,49 @@ err:
return 1;
}
+static int test_disabled_ring(struct io_uring *ring, int flags)
+{
+ struct io_uring_cqe *cqe;
+ struct io_uring_sqe *sqe;
+ struct io_uring disabled_ring;
+ int ret;
+
+ flags |= IORING_SETUP_R_DISABLED;
+ ret = io_uring_queue_init(8, &disabled_ring, flags);
+ if (ret) {
+ fprintf(stderr, "ring setup failed: %d\n", ret);
+ return 1;
+ }
+
+ sqe = io_uring_get_sqe(ring);
+ io_uring_prep_msg_ring(sqe, disabled_ring.ring_fd, 0x10, 0x1234, 0);
+ sqe->user_data = 1;
+
+ ret = io_uring_submit(ring);
+ if (ret != 1) {
+ fprintf(stderr, "sqe submit failed: %d\n", ret);
+ return 1;
+ }
+
+ ret = io_uring_wait_cqe(ring, &cqe);
+ if (ret < 0) {
+ fprintf(stderr, "wait completion %d\n", ret);
+ return 1;
+ }
+ if (cqe->res != 0 && cqe->res != -EBADFD) {
+ fprintf(stderr, "cqe res %d\n", cqe->res);
+ return 1;
+ }
+ if (cqe->user_data != 1) {
+ fprintf(stderr, "user_data %llx\n", (long long) cqe->user_data);
+ return 1;
+ }
+
+ io_uring_cqe_seen(ring, cqe);
+ io_uring_queue_exit(&disabled_ring);
+ return 0;
+}
+
int main(int argc, char *argv[])
{
struct io_uring ring, ring2, pring;
@@ -280,6 +323,18 @@ int main(int argc, char *argv[])
}
}
io_uring_queue_exit(&ring);
+
+ if (test_disabled_ring(&ring2, 0)) {
+ fprintf(stderr, "test_disabled_ring failed\n");
+ return T_EXIT_FAIL;
+ }
+
+ if (test_disabled_ring(&ring2, IORING_SETUP_SINGLE_ISSUER |
+ IORING_SETUP_DEFER_TASKRUN)) {
+ fprintf(stderr, "test_disabled_ring defer failed\n");
+ return T_EXIT_FAIL;
+ }
+
}
return T_EXIT_PASS;
