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 void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel); 18 #else 19 static inline void exit_aio(struct mm_struct *mm) { } 20 static inline void kiocb_set_cancel_fn(struct kiocb *req, 21 kiocb_cancel_fn *cancel) { } 22 #endif /* CONFIG_AIO */ 23 24 /* for sysctl: */ 25 extern unsigned long aio_nr; 26 extern unsigned long aio_max_nr; 27 28 #endif /* __LINUX__AIO_H */ 29