summaryrefslogtreecommitdiffstats
path: root/arch/um/kernel/reboot.c
blob: ced8903921aeb61a255edde5f69cb86a98a2b70e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
/* 
 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 * Licensed under the GPL
 */

#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/oom.h>
#include <kern_util.h>
#include <os.h>
#include <skas.h>

void (*pm_power_off)(void);

static void kill_off_processes(void)
{
	if (proc_mm)
		/*
		 * FIXME: need to loop over userspace_pids
		 */
		os_kill_ptraced_process(userspace_pid[0], 1);
	else {
		struct task_struct *p;
		int pid;

		read_lock(&tasklist_lock);
		for_each_process(p) {
			struct task_struct *t;

			t = find_lock_task_mm(p);
			if (!t)
				continue;
			pid = t->mm->context.id.u.pid;
			task_unlock(t);
			os_kill_ptraced_process(pid, 1);
		}
		read_unlock(&tasklist_lock);
	}
}

void uml_cleanup(void)
{
	kmalloc_ok = 0;
	do_uml_exitcalls();
	kill_off_processes();
}

void machine_restart(char * __unused)
{
	uml_cleanup();
	reboot_skas();
}

void machine_power_off(void)
{
	uml_cleanup();
	halt_skas();
}

void machine_halt(void)
{
	machine_power_off();
}