linux/include/linux/aio.h
Christoph Hellwig f3a2752a43 aio: simplify KIOCB_KEY handling
No need to pass the key field to lookup_iocb to compare it with KIOCB_KEY,
as we can do that right after retrieving it from userspace.  Also move the
KIOCB_KEY definition to aio.c as it is an internal value not used by any
other place in the kernel.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-26 09:16:44 +02:00

28 lines
651 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX__AIO_H
#define __LINUX__AIO_H
#include <linux/aio_abi.h>
struct kioctx;
struct kiocb;
struct mm_struct;
typedef int (kiocb_cancel_fn)(struct kiocb *);
/* prototypes */
#ifdef CONFIG_AIO
extern void exit_aio(struct mm_struct *mm);
void kiocb_set_cancel_fn(struct kiocb *req, kiocb_cancel_fn *cancel);
#else
static inline void exit_aio(struct mm_struct *mm) { }
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 */