1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 2
3 struct io_tctx_node { 3 struct io_tctx_node {
4 struct list_head ctx_node; 4 struct list_head ctx_node;
5 struct task_struct *task; 5 struct task_struct *task;
6 struct io_ring_ctx *ctx; 6 struct io_ring_ctx *ctx;
7 }; 7 };
8 8
9 int io_uring_alloc_task_context(struct task_st 9 int io_uring_alloc_task_context(struct task_struct *task,
10 struct io_ring 10 struct io_ring_ctx *ctx);
11 void io_uring_del_tctx_node(unsigned long inde 11 void io_uring_del_tctx_node(unsigned long index);
12 int __io_uring_add_tctx_node(struct io_ring_ct 12 int __io_uring_add_tctx_node(struct io_ring_ctx *ctx);
13 int __io_uring_add_tctx_node_from_submit(struc 13 int __io_uring_add_tctx_node_from_submit(struct io_ring_ctx *ctx);
14 void io_uring_clean_tctx(struct io_uring_task 14 void io_uring_clean_tctx(struct io_uring_task *tctx);
15 15
16 void io_uring_unreg_ringfd(void); 16 void io_uring_unreg_ringfd(void);
17 int io_ringfd_register(struct io_ring_ctx *ctx 17 int io_ringfd_register(struct io_ring_ctx *ctx, void __user *__arg,
18 unsigned nr_args); 18 unsigned nr_args);
19 int io_ringfd_unregister(struct io_ring_ctx *c 19 int io_ringfd_unregister(struct io_ring_ctx *ctx, void __user *__arg,
20 unsigned nr_args); 20 unsigned nr_args);
21 21
22 /* 22 /*
23 * Note that this task has used io_uring. We u 23 * Note that this task has used io_uring. We use it for cancelation purposes.
24 */ 24 */
25 static inline int io_uring_add_tctx_node(struc 25 static inline int io_uring_add_tctx_node(struct io_ring_ctx *ctx)
26 { 26 {
27 struct io_uring_task *tctx = current-> 27 struct io_uring_task *tctx = current->io_uring;
28 28
29 if (likely(tctx && tctx->last == ctx)) 29 if (likely(tctx && tctx->last == ctx))
30 return 0; 30 return 0;
31 31
32 return __io_uring_add_tctx_node_from_s 32 return __io_uring_add_tctx_node_from_submit(ctx);
33 } 33 }
34 34
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