[deliverable/linux.git] / include / linux / aio.h

#ifndef __LINUX__AIO_H
#define __LINUX__AIO_H

#include <linux/aio_abi.h>

struct kioctx;
struct kiocb;
struct mm_struct;

#define KIOCB_KEY		0

typedef int (kiocb_cancel_fn)(struct kiocb *);

/* prototypes */
#ifdef CONFIG_AIO
extern void exit_aio(struct mm_struct *mm);
extern long do_io_submit(aio_context_t ctx_id, long nr,
			 struct iocb __user *__user *iocbpp, bool compat);
void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel);
#else
static inline void exit_aio(struct mm_struct *mm) { }
static inline long do_io_submit(aio_context_t ctx_id, long nr,
				struct iocb __user * __user *iocbpp,
				bool compat) { return 0; }
static inline void kiocb_set_cancel_fn(struct kiocb *req,
				       kiocb_cancel_fn *cancel) { }
#endif /* CONFIG_AIO */

/* for sysctl: */
extern unsigned long aio_nr;
extern unsigned long aio_max_nr;

#endif /* __LINUX__AIO_H */
Commit	Line	Data
	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
	21	static inline void exit_aio(struct mm_struct *mm) { }
	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; }
	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 */