[linux-2.6-block.git] / include / linux / restart_block.h

/*
 * Common syscall restarting data
 */
#ifndef __LINUX_RESTART_BLOCK_H
#define __LINUX_RESTART_BLOCK_H

#include <linux/compiler.h>
#include <linux/types.h>

struct timespec;
struct compat_timespec;
struct pollfd;

enum timespec_type {
	TT_NONE		= 0,
	TT_NATIVE	= 1,
#ifdef CONFIG_COMPAT
	TT_COMPAT	= 2,
#endif
};

/*
 * System call restart block.
 */
struct restart_block {
	long (*fn)(struct restart_block *);
	union {
		/* For futex_wait and futex_wait_requeue_pi */
		struct {
			u32 __user *uaddr;
			u32 val;
			u32 flags;
			u32 bitset;
			u64 time;
			u32 __user *uaddr2;
		} futex;
		/* For nanosleep */
		struct {
			clockid_t clockid;
			enum timespec_type type;
			union {
				struct timespec __user *rmtp;
#ifdef CONFIG_COMPAT
				struct compat_timespec __user *compat_rmtp;
#endif
			};
			u64 expires;
		} nanosleep;
		/* For poll */
		struct {
			struct pollfd __user *ufds;
			int nfds;
			int has_timeout;
			unsigned long tv_sec;
			unsigned long tv_nsec;
		} poll;
	};
};

extern long do_no_restart_syscall(struct restart_block *parm);

#endif /* __LINUX_RESTART_BLOCK_H */
Commit	Line	Data
53d74d05 MR	1	/*
	2	* Common syscall restarting data
	3	*/
	4	#ifndef __LINUX_RESTART_BLOCK_H
	5	#define __LINUX_RESTART_BLOCK_H
	6
	7	#include <linux/compiler.h>
	8	#include <linux/types.h>
	9
	10	struct timespec;
	11	struct compat_timespec;
	12	struct pollfd;
	13
edbeda46 AV	14	enum timespec_type {
	15	TT_NONE = 0,
	16	TT_NATIVE = 1,
	17	#ifdef CONFIG_COMPAT
	18	TT_COMPAT = 2,
	19	#endif
	20	};
	21
53d74d05 MR	22	/*
	23	* System call restart block.
	24	*/
	25	struct restart_block {
	26	long (fn)(struct restart_block );
	27	union {
	28	/* For futex_wait and futex_wait_requeue_pi */
	29	struct {
	30	u32 __user *uaddr;
	31	u32 val;
	32	u32 flags;
	33	u32 bitset;
	34	u64 time;
	35	u32 __user *uaddr2;
	36	} futex;
	37	/* For nanosleep */
	38	struct {
	39	clockid_t clockid;
edbeda46 AV	40	enum timespec_type type;
	41	union {
	42	struct timespec __user *rmtp;
53d74d05	43	#ifdef CONFIG_COMPAT
edbeda46	44	struct compat_timespec __user *compat_rmtp;
53d74d05	45	#endif
edbeda46	46	};
53d74d05 MR	47	u64 expires;
	48	} nanosleep;
	49	/* For poll */
	50	struct {
	51	struct pollfd __user *ufds;
	52	int nfds;
	53	int has_timeout;
	54	unsigned long tv_sec;
	55	unsigned long tv_nsec;
	56	} poll;
	57	};
	58	};
	59
	60	extern long do_no_restart_syscall(struct restart_block *parm);
	61
	62	#endif /* __LINUX_RESTART_BLOCK_H */