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 "user_util.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 #ifdef CONFIG_SMP
  16 static void kill_idlers(int me)
  17 {
  18         struct task_struct *p;
  19         int i;
  20
  21         for(i = 0; i < sizeof(idle_threads)/sizeof(idle_threads[0]); i++){
  22                 p = idle_threads[i];
  23                 if((p != NULL) && (p->thread.mode.tt.extern_pid != me))
  24                         os_kill_process(p->thread.mode.tt.extern_pid, 0);
  25         }
  26 }
  27 #endif
  28
  29 static void kill_off_processes(void)
  30 {
  31         CHOOSE_MODE(kill_off_processes_tt(), kill_off_processes_skas());
  32 #ifdef CONFIG_SMP
  33         kill_idlers(os_getpid());
  34 #endif
  35 }
  36
  37 void uml_cleanup(void)
  38 {
  39         kill_off_processes();
  40         do_uml_exitcalls();
  41 }
  42
  43 void machine_restart(char * __unused)
  44 {
  45         do_uml_exitcalls();
  46         kill_off_processes();
  47         CHOOSE_MODE(reboot_tt(), reboot_skas());
  48 }
  49
  50 EXPORT_SYMBOL(machine_restart);
  51
  52 void machine_power_off(void)
  53 {
  54         do_uml_exitcalls();
  55         kill_off_processes();
  56         CHOOSE_MODE(halt_tt(), halt_skas());
  57 }
  58
  59 EXPORT_SYMBOL(machine_power_off);
  60
  61 void machine_halt(void)
  62 {
  63         machine_power_off();
  64 }
  65
  66 EXPORT_SYMBOL(machine_halt);
  67
  68 /*
  69  * Overrides for Emacs so that we follow Linus's tabbing style.
  70  * Emacs will notice this stuff at the end of the file and automatically
  71  * adjust the settings for this buffer only.  This must remain at the end
  72  * of the file.
  73  * ---------------------------------------------------------------------------
  74  * Local variables:
  75  * c-file-style: "linux"
  76  * End:
  77  */