Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[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 "kern_util.h"
10 #include "kern.h"
11 #include "os.h"
12 #include "mode.h"
13 #include "choose-mode.h"
14
15 void (*pm_power_off)(void);
16
17 #ifdef CONFIG_SMP
18 static void kill_idlers(int me)
19 {
20 #ifdef CONFIG_MODE_TT
21         struct task_struct *p;
22         int i;
23
24         for(i = 0; i < ARRAY_SIZE(idle_threads); i++){
25                 p = idle_threads[i];
26                 if((p != NULL) && (p->thread.mode.tt.extern_pid != me))
27                         os_kill_process(p->thread.mode.tt.extern_pid, 0);
28         }
29 #endif
30 }
31 #endif
32
33 static void kill_off_processes(void)
34 {
35         CHOOSE_MODE(kill_off_processes_tt(), kill_off_processes_skas());
36 #ifdef CONFIG_SMP
37         kill_idlers(os_getpid());
38 #endif
39 }
40
41 void uml_cleanup(void)
42 {
43         kmalloc_ok = 0;
44         do_uml_exitcalls();
45         kill_off_processes();
46 }
47
48 void machine_restart(char * __unused)
49 {
50         uml_cleanup();
51         CHOOSE_MODE(reboot_tt(), reboot_skas());
52 }
53
54 void machine_power_off(void)
55 {
56         uml_cleanup();
57         CHOOSE_MODE(halt_tt(), halt_skas());
58 }
59
60 void machine_halt(void)
61 {
62         machine_power_off();
63 }