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