| 382 | } |
| 383 | |
| 384 | int io_uring_submit_and_wait_reg(struct io_uring *ring, |
| 385 | struct io_uring_cqe **cqe_ptr, |
| 386 | unsigned wait_nr, int reg_index) |
| 387 | { |
| 388 | unsigned long offset = reg_index * sizeof(struct io_uring_reg_wait); |
| 389 | |
| 390 | struct get_data data = { |
| 391 | .submit = __io_uring_flush_sq(ring), |
| 392 | .wait_nr = wait_nr, |
| 393 | .get_flags = IORING_ENTER_EXT_ARG | |
| 394 | IORING_ENTER_EXT_ARG_REG, |
| 395 | .sz = sizeof(struct io_uring_reg_wait), |
| 396 | .has_ts = true, |
| 397 | .arg = (void *) (uintptr_t) offset, |
| 398 | }; |
| 399 | |
| 400 | if (!(ring->features & IORING_FEAT_EXT_ARG)) |
| 401 | return -EINVAL; |
| 402 | |
| 403 | return _io_uring_get_cqe(ring, cqe_ptr, &data); |
| 404 | } |
| 405 | |
| 406 | static int __io_uring_submit_and_wait_timeout(struct io_uring *ring, |
| 407 | struct io_uring_cqe **cqe_ptr, unsigned wait_nr, |