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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/io_uring/futex.h
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// SPDX-License-Identifier: GPL-2.0

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#include "cancel.h"

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int io_futex_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);

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int io_futexv_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);

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int io_futex_wait(struct io_kiocb *req, unsigned int issue_flags);

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int io_futexv_wait(struct io_kiocb *req, unsigned int issue_flags);

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int io_futex_wake(struct io_kiocb *req, unsigned int issue_flags);

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#if defined(CONFIG_FUTEX)

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int io_futex_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,

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		    unsigned int issue_flags);

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bool io_futex_remove_all(struct io_ring_ctx *ctx, struct io_uring_task *tctx,

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			 bool cancel_all);

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bool io_futex_cache_init(struct io_ring_ctx *ctx);

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void io_futex_cache_free(struct io_ring_ctx *ctx);

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#else

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static inline int io_futex_cancel(struct io_ring_ctx *ctx,

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				  struct io_cancel_data *cd,

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				  unsigned int issue_flags)

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{

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	return 0;

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}

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static inline bool io_futex_remove_all(struct io_ring_ctx *ctx,

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				       struct io_uring_task *tctx, bool cancel_all)

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{

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	return false;

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}

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static inline bool io_futex_cache_init(struct io_ring_ctx *ctx)

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{

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	return false;

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}

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static inline void io_futex_cache_free(struct io_ring_ctx *ctx)

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{

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}

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#endif

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