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/spinlock.h> 8 #include <linux/slab.h> 9 #include <linux/oom.h> 10 #include <kern_util.h> 11 #include <os.h> 12 #include <skas.h> 13 14 void (*pm_power_off)(void); 15 EXPORT_SYMBOL(pm_power_off); 16 17 static void kill_off_processes(void) 18 { 19 struct task_struct *p; 20 int pid; 21 22 read_lock(&tasklist_lock); 23 for_each_process(p) { 24 struct task_struct *t; 25 26 t = find_lock_task_mm(p); 27 if (!t) 28 continue; 29 pid = t->mm->context.id.u.pid; 30 task_unlock(t); 31 os_kill_ptraced_process(pid, 1); 32 } 33 read_unlock(&tasklist_lock); 34 } 35 36 void uml_cleanup(void) 37 { 38 kmalloc_ok = 0; 39 do_uml_exitcalls(); 40 kill_off_processes(); 41 } 42 43 void machine_restart(char * __unused) 44 { 45 uml_cleanup(); 46 reboot_skas(); 47 } 48 49 void machine_power_off(void) 50 { 51 uml_cleanup(); 52 halt_skas(); 53 } 54 55 void machine_halt(void) 56 { 57 machine_power_off(); 58 } 59