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um: remove dead code
[~shefty/rdma-dev.git] / arch / um / kernel / reboot.c
1 /* 
2  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3  * Licensed under the GPL
4  */
5
6 #include "linux/sched.h"
7 #include "linux/slab.h"
8 #include "kern_util.h"
9 #include "os.h"
10 #include "skas.h"
11
12 void (*pm_power_off)(void);
13
14 static void kill_off_processes(void)
15 {
16         if (proc_mm)
17                 /*
18                  * FIXME: need to loop over userspace_pids
19                  */
20                 os_kill_ptraced_process(userspace_pid[0], 1);
21         else {
22                 struct task_struct *p;
23                 int pid;
24
25                 for_each_process(p) {
26                         if (p->mm == NULL)
27                                 continue;
28
29                         pid = p->mm->context.id.u.pid;
30                         os_kill_ptraced_process(pid, 1);
31                 }
32         }
33 }
34
35 void uml_cleanup(void)
36 {
37         kmalloc_ok = 0;
38         do_uml_exitcalls();
39         kill_off_processes();
40 }
41
42 void machine_restart(char * __unused)
43 {
44         uml_cleanup();
45         reboot_skas();
46 }
47
48 void machine_power_off(void)
49 {
50         uml_cleanup();
51         halt_skas();
52 }
53
54 void machine_halt(void)
55 {
56         machine_power_off();
57 }