LXR linux/include/linux/aio.h

   1#ifndef __LINUX__AIO_H
   2#define __LINUX__AIO_H
   3
   4#include <linux/aio_abi.h>
   5
   6struct kioctx;
   7struct kiocb;
   8struct mm_struct;
   9
  10#define KIOCB_KEY               0
  11
  12typedef int (kiocb_cancel_fn)(struct kiocb *);
  13
  14/* prototypes */
  15#ifdef CONFIG_AIO
  16extern void exit_aio(struct mm_struct *mm);
  17extern long do_io_submit(aio_context_t ctx_id, long nr,
  18                         struct iocb __user *__user *iocbpp, bool compat);
  19void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel);
  20#else
  21static inline void exit_aio(struct mm_struct *mm) { }
  22static inline long do_io_submit(aio_context_t ctx_id, long nr,
  23                                struct iocb __user * __user *iocbpp,
  24                                bool compat) { return 0; }
  25static inline void kiocb_set_cancel_fn(struct kiocb *req,
  26                                       kiocb_cancel_fn *cancel) { }
  27#endif /* CONFIG_AIO */
  28
  29/* for sysctl: */
  30extern unsigned long aio_nr;
  31extern unsigned long aio_max_nr;
  32
  33#endif /* __LINUX__AIO_H */
  34