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