// SPDX-License-Identifier: GPL-2.0 struct io_tctx_node { struct list_head ctx_node; struct task_struct *task; struct io_ring_ctx *ctx; }; int io_uring_alloc_task_context(struct task_struct *task, struct io_ring_ctx *ctx); void io_uring_del_tctx_node(unsigned long index); int __io_uring_add_tctx_node(struct io_ring_ctx *ctx, bool submitter); void io_uring_clean_tctx(struct io_uring_task *tctx); void io_uring_unreg_ringfd(void); int io_ringfd_register(struct io_ring_ctx *ctx, void __user *__arg, unsigned nr_args); int io_ringfd_unregister(struct io_ring_ctx *ctx, void __user *__arg, unsigned nr_args); /* * Note that this task has used io_uring. We use it for cancelation purposes. */ static inline int io_uring_add_tctx_node(struct io_ring_ctx *ctx) { struct io_uring_task *tctx = current->io_uring; if (likely(tctx && tctx->last == ctx)) return 0; return __io_uring_add_tctx_node(ctx, true); }