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c9f06aa7 JA |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | ||
c9f06aa7 JA |
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); | |
97c96e9f DY |
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); | |
c9f06aa7 JA |
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; | |
97c96e9f DY |
31 | |
32 | return __io_uring_add_tctx_node_from_submit(ctx); | |
c9f06aa7 | 33 | } |