Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb
[linux-2.6] / arch / um / kernel / reboot.c
1 /* 
2  * Copyright (C) 2000, 2002 Jeff Dike (jdike@karaya.com)
3  * Licensed under the GPL
4  */
5
6 #include "linux/module.h"
7 #include "linux/sched.h"
8 #include "asm/smp.h"
9 #include "user_util.h"
10 #include "kern_util.h"
11 #include "kern.h"
12 #include "os.h"
13 #include "mode.h"
14 #include "choose-mode.h"
15
16 void (*pm_power_off)(void);
17
18 #ifdef CONFIG_SMP
19 static void kill_idlers(int me)
20 {
21 #ifdef CONFIG_MODE_TT
22         struct task_struct *p;
23         int i;
24
25         for(i = 0; i < ARRAY_SIZE(idle_threads); i++){
26                 p = idle_threads[i];
27                 if((p != NULL) && (p->thread.mode.tt.extern_pid != me))
28                         os_kill_process(p->thread.mode.tt.extern_pid, 0);
29         }
30 #endif
31 }
32 #endif
33
34 static void kill_off_processes(void)
35 {
36         CHOOSE_MODE(kill_off_processes_tt(), kill_off_processes_skas());
37 #ifdef CONFIG_SMP
38         kill_idlers(os_getpid());
39 #endif
40 }
41
42 void uml_cleanup(void)
43 {
44         kmalloc_ok = 0;
45         do_uml_exitcalls();
46         kill_off_processes();
47 }
48
49 void machine_restart(char * __unused)
50 {
51         uml_cleanup();
52         CHOOSE_MODE(reboot_tt(), reboot_skas());
53 }
54
55 void machine_power_off(void)
56 {
57         uml_cleanup();
58         CHOOSE_MODE(halt_tt(), halt_skas());
59 }
60
61 void machine_halt(void)
62 {
63         machine_power_off();
64 }