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