Jens Axboe | c9f06aa | 2022-05-25 11:01:04 -0600 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | |
Jens Axboe | c9f06aa | 2022-05-25 11:01:04 -0600 | [diff] [blame] | 3 | struct io_tctx_node { |
| 4 | struct list_head ctx_node; |
| 5 | struct task_struct *task; |
| 6 | struct io_ring_ctx *ctx; |
| 7 | }; |
| 8 | |
| 9 | int io_uring_alloc_task_context(struct task_struct *task, |
| 10 | struct io_ring_ctx *ctx); |
| 11 | void io_uring_del_tctx_node(unsigned long index); |
Dylan Yudaken | 97c96e9 | 2022-09-26 10:09:26 -0700 | [diff] [blame] | 12 | int __io_uring_add_tctx_node(struct io_ring_ctx *ctx); |
| 13 | int __io_uring_add_tctx_node_from_submit(struct io_ring_ctx *ctx); |
Jens Axboe | c9f06aa | 2022-05-25 11:01:04 -0600 | [diff] [blame] | 14 | void io_uring_clean_tctx(struct io_uring_task *tctx); |
| 15 | |
| 16 | void io_uring_unreg_ringfd(void); |
| 17 | int io_ringfd_register(struct io_ring_ctx *ctx, void __user *__arg, |
| 18 | unsigned nr_args); |
| 19 | int io_ringfd_unregister(struct io_ring_ctx *ctx, void __user *__arg, |
| 20 | unsigned nr_args); |
| 21 | |
| 22 | /* |
| 23 | * Note that this task has used io_uring. We use it for cancelation purposes. |
| 24 | */ |
| 25 | static inline int io_uring_add_tctx_node(struct io_ring_ctx *ctx) |
| 26 | { |
| 27 | struct io_uring_task *tctx = current->io_uring; |
| 28 | |
| 29 | if (likely(tctx && tctx->last == ctx)) |
| 30 | return 0; |
Dylan Yudaken | 97c96e9 | 2022-09-26 10:09:26 -0700 | [diff] [blame] | 31 | |
| 32 | return __io_uring_add_tctx_node_from_submit(ctx); |
Jens Axboe | c9f06aa | 2022-05-25 11:01:04 -0600 | [diff] [blame] | 33 | } |