reboot.h File Reference

#include <linux/notifier.h>
#include <uapi/linux/reboot.h>
#include <asm/emergency-restart.h>

Go to the source code of this file.

Macros
#define	SYS_DOWN   0x0001 /* Notify of system down */
#define	SYS_RESTART   SYS_DOWN
#define	SYS_HALT   0x0002 /* Notify of system halt */
#define	SYS_POWER_OFF   0x0003 /* Notify of system power off */
#define	POWEROFF_CMD_PATH_LEN   256

Functions
int	register_reboot_notifier (struct notifier_block *)
int	unregister_reboot_notifier (struct notifier_block *)
void	machine_restart (char *cmd)
void	machine_halt (void)
void	machine_power_off (void)
void	machine_shutdown (void)
void	machine_crash_shutdown (struct pt_regs *)
void	kernel_restart_prepare (char *cmd)
void	kernel_restart (char *cmd)
void	kernel_halt (void)
void	kernel_power_off (void)
void	ctrl_alt_del (void)
int	orderly_poweroff (bool force)
void	emergency_restart (void)

Variables
int	C_A_D
char	poweroff_cmd [POWEROFF_CMD_PATH_LEN]

Macro Definition Documentation

#define POWEROFF_CMD_PATH_LEN   256

Definition at line 41 of file reboot.h.

#define SYS_DOWN   0x0001 /* Notify of system down */

Definition at line 8 of file reboot.h.

#define SYS_HALT   0x0002 /* Notify of system halt */

Definition at line 10 of file reboot.h.

#define SYS_POWER_OFF   0x0003 /* Notify of system power off */

Definition at line 11 of file reboot.h.

#define SYS_RESTART   SYS_DOWN

Definition at line 9 of file reboot.h.

Function Documentation

void ctrl_alt_del

(

void

)

Definition at line 530 of file sys.c.

void emergency_restart

(

void

)

emergency_restart - reboot the system

Without shutting down any hardware or taking any locks reboot the system. This is called when we know we are in trouble so this is our best effort to reboot. This is safe to call in interrupt context.

Definition at line 313 of file sys.c.

void kernel_halt

(

void

)

kernel_halt - halt the system

Shutdown everything and perform a clean system halt.

Definition at line 394 of file sys.c.

void kernel_power_off

(

void

)

kernel_power_off - power_off the system

Shutdown everything and perform a clean system power_off.

Definition at line 410 of file sys.c.

void kernel_restart

(

char *

cmd

)

kernel_restart - reboot the system : pointer to buffer containing command to execute for restart or NULL

Shutdown everything and perform a clean reboot. This is not safe to call in interrupt context.

Definition at line 368 of file sys.c.

void kernel_restart_prepare

(

char *

cmd

)

Definition at line 320 of file sys.c.

void machine_crash_shutdown

(

struct pt_regs *

)

Definition at line 104 of file machine_kexec.c.

void machine_halt

(

void

)

Definition at line 178 of file process.c.

void machine_power_off

(

void

)

Definition at line 185 of file process.c.

void machine_restart

(

char *

cmd

)

Definition at line 171 of file process.c.

void machine_shutdown

(

void

)

Definition at line 240 of file process.c.

int orderly_poweroff

(

bool

force

)

orderly_poweroff - Trigger an orderly system poweroff : force poweroff if command execution fails

This may be called from any context to trigger a system shutdown. If the orderly shutdown fails, it will force an immediate shutdown.

Definition at line 2225 of file sys.c.

int register_reboot_notifier

(

struct notifier_block *

nb

)

register_reboot_notifier - Register function to be called at reboot time : Info about notifier function to be called

Registers a function with the list of functions to be called at reboot time.

Currently always returns zero, as blocking_notifier_chain_register() always returns zero.

Definition at line 339 of file sys.c.

int unregister_reboot_notifier

(

struct notifier_block *

nb

)

unregister_reboot_notifier - Unregister previously registered reboot notifier : Hook to be unregistered

Unregisters a previously registered reboot notifier function.

Returns zero on success, or %-ENOENT on failure.

Definition at line 354 of file sys.c.

Variable Documentation

int C_A_D

Definition at line 116 of file sys.c.

char poweroff_cmd[POWEROFF_CMD_PATH_LEN]

Definition at line 2185 of file sys.c.