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kernel/linux-rt-4.4.41/include/linux/aio.h 879 Bytes
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  #ifndef __LINUX__AIO_H
  #define __LINUX__AIO_H
  
  #include <linux/aio_abi.h>
  
  struct kioctx;
  struct kiocb;
  struct mm_struct;
  
  #define KIOCB_KEY		0
  
  typedef int (kiocb_cancel_fn)(struct kiocb *);
  
  /* prototypes */
  #ifdef CONFIG_AIO
  extern void exit_aio(struct mm_struct *mm);
  extern long do_io_submit(aio_context_t ctx_id, long nr,
  			 struct iocb __user *__user *iocbpp, bool compat);
  void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel);
  #else
  static inline void exit_aio(struct mm_struct *mm) { }
  static inline long do_io_submit(aio_context_t ctx_id, long nr,
  				struct iocb __user * __user *iocbpp,
  				bool compat) { return 0; }
  static inline void kiocb_set_cancel_fn(struct kiocb *req,
  				       kiocb_cancel_fn *cancel) { }
  #endif /* CONFIG_AIO */
  
  /* for sysctl: */
  extern unsigned long aio_nr;
  extern unsigned long aio_max_nr;
  
  #endif /* __LINUX__AIO_H */