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1// SPDX-License-Identifier: GPL-2.02 3struct io_tctx_node {4 struct list_head ctx_node;5 struct task_struct *task;6 struct io_ring_ctx *ctx;7};8 9int io_uring_alloc_task_context(struct task_struct *task,10 struct io_ring_ctx *ctx) HWJS_SUSPENDS;11void io_uring_del_tctx_node(unsigned long index) HWJS_SUSPENDS;12int __io_uring_add_tctx_node(struct io_ring_ctx *ctx) HWJS_SUSPENDS;13int __io_uring_add_tctx_node_from_submit(struct io_ring_ctx *ctx) HWJS_SUSPENDS;14void io_uring_clean_tctx(struct io_uring_task *tctx) HWJS_SUSPENDS;15 16void io_uring_unreg_ringfd(void);17int io_ringfd_register(struct io_ring_ctx *ctx, void __user *__arg,18 unsigned nr_args) HWJS_SUSPENDS;19int 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 */25static 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;31 32 return __io_uring_add_tctx_node_from_submit(ctx);33}34