futex.c File Reference

#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/jhash.h>
#include <linux/init.h>
#include <linux/futex.h>
#include <linux/mount.h>
#include <linux/pagemap.h>
#include <linux/syscalls.h>
#include <linux/signal.h>
#include <linux/export.h>
#include <linux/magic.h>
#include <linux/pid.h>
#include <linux/nsproxy.h>
#include <linux/ptrace.h>
#include <asm/futex.h>
#include "rtmutex_common.h"

Go to the source code of this file.

Data Structures
struct	futex_pi_state
struct	futex_q
struct	futex_hash_bucket

Macros
#define	FUTEX_HASHBITS   (CONFIG_BASE_SMALL ? 4 : 8)
#define	FLAGS_SHARED   0x01
#define	FLAGS_CLOCKRT   0x02
#define	FLAGS_HAS_TIMEOUT   0x04

Functions
void	exit_pi_state_list (struct task_struct *curr)
	SYSCALL_DEFINE2 (set_robust_list, struct robust_list_head __user *, head, size_t, len)
	SYSCALL_DEFINE3 (get_robust_list, int, pid, struct robust_list_head __user *__user *, head_ptr, size_t __user *, len_ptr)
int	handle_futex_death (u32 __user *uaddr, struct task_struct *curr, int pi)
void	exit_robust_list (struct task_struct *curr)
long	do_futex (u32 __user *uaddr, int op, u32 val, ktime_t *timeout, u32 __user *uaddr2, u32 val2, u32 val3)
	SYSCALL_DEFINE6 (futex, u32 __user *, uaddr, int, op, u32, val, struct timespec __user *, utime, u32 __user *, uaddr2, u32, val3)
	__initcall (futex_init)

Variables
int __read_mostly	futex_cmpxchg_enabled

Macro Definition Documentation

#define FLAGS_CLOCKRT   0x02

Definition at line 77 of file futex.c.

#define FLAGS_HAS_TIMEOUT   0x04

Definition at line 78 of file futex.c.

#define FLAGS_SHARED   0x01

Definition at line 76 of file futex.c.

#define FUTEX_HASHBITS   (CONFIG_BASE_SMALL ? 4 : 8)

Definition at line 70 of file futex.c.

Function Documentation

__initcall

(

futex_init

)

long do_futex	(	u32 __user *	uaddr,
		int	op,
		u32	val,
		ktime_t *	timeout,
		u32 __user *	uaddr2,
		u32	val2,
		u32	val3
	)

Definition at line 2642 of file futex.c.

void exit_pi_state_list

(

struct task_struct *

curr

)

Definition at line 540 of file futex.c.

void exit_robust_list

(

struct task_struct *

curr

)

Definition at line 2579 of file futex.c.

int handle_futex_death	(	u32 __user *	uaddr,
		struct task_struct *	curr,
		int	pi
	)

Definition at line 2508 of file futex.c.

SYSCALL_DEFINE2	(	set_robust_list	,
		struct robust_list_head __user *	,
		head	,
		size_t	,
		len
	)

sys_set_robust_list() - Set the robust-futex list head of a task : pointer to the list-head : length of the list-head, as userspace expects

Definition at line 2441 of file futex.c.

SYSCALL_DEFINE3	(	get_robust_list	,
		int	,
		pid	,
		struct robust_list_head __user *__user *	,
		head_ptr	,
		size_t __user *	,
		len_ptr
	)

sys_get_robust_list() - Get the robust-futex list head of a task : pid of the process [zero for current task] : pointer to a list-head pointer, the kernel fills it in : pointer to a length field, the kernel fills in the header size

Definition at line 2463 of file futex.c.

SYSCALL_DEFINE6	(	futex	,
		u32 __user *	,
		uaddr	,
		int	,
		op	,
		u32	,
		val	,
		struct timespec __user *	,
		utime	,
		u32 __user *	,
		uaddr2	,
		u32	,
		val3
	)

Definition at line 2699 of file futex.c.

Variable Documentation

int __read_mostly futex_cmpxchg_enabled

Definition at line 68 of file futex.c.