1// SPDX-License-Identifier: GPL-2.0
 2
 3#include "cancel.h"
 4
 5int io_futex_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 6int io_futexv_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 7int io_futex_wait(struct io_kiocb *req, unsigned int issue_flags);
 8int io_futexv_wait(struct io_kiocb *req, unsigned int issue_flags);
 9int io_futex_wake(struct io_kiocb *req, unsigned int issue_flags);
10
11#if defined(CONFIG_FUTEX)
12int io_futex_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
13		    unsigned int issue_flags);
14bool io_futex_remove_all(struct io_ring_ctx *ctx, struct io_uring_task *tctx,
15			 bool cancel_all);
16bool io_futex_cache_init(struct io_ring_ctx *ctx);
17void io_futex_cache_free(struct io_ring_ctx *ctx);
18#else
19static inline int io_futex_cancel(struct io_ring_ctx *ctx,
20				  struct io_cancel_data *cd,
21				  unsigned int issue_flags)
22{
23	return 0;
24}
25static inline bool io_futex_remove_all(struct io_ring_ctx *ctx,
26				       struct io_uring_task *tctx, bool cancel_all)
27{
28	return false;
29}
30static inline bool io_futex_cache_init(struct io_ring_ctx *ctx)
31{
32	return false;
33}
34static inline void io_futex_cache_free(struct io_ring_ctx *ctx)
35{
36}
37#endif