1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __LINUX__AIO_H 3 #define __LINUX__AIO_H 4 5 #include <linux/aio_abi.h> 6 7 struct kioctx; 8 struct kiocb; 9 struct mm_struct; 10 11 typedef int (kiocb_cancel_fn)(struct kiocb *); 12 13 /* prototypes */ 14 #ifdef CONFIG_AIO 15 extern void exit_aio(struct mm_struct *mm); 16 void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel); 17 #else 18 static inline void exit_aio(struct mm_struct *mm) { } 19 static inline void kiocb_set_cancel_fn(struct kiocb *req, 20 kiocb_cancel_fn *cancel) { } 21 #endif /* CONFIG_AIO */ 22 23 /* for sysctl: */ 24 extern unsigned long aio_nr; 25 extern unsigned long aio_max_nr; 26 27 #endif /* __LINUX__AIO_H */ 28