io_uring/futex.h

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