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 16 static void kill_off_processes(void) 17 { 18 struct task_struct *p; 19 int pid; 20 21 read_lock(&tasklist_lock); 22 for_each_process(p) { 23 struct task_struct *t; 24 25 t = find_lock_task_mm(p); 26 if (!t) 27 continue; 28 pid = t->mm->context.id.u.pid; 29 task_unlock(t); 30 os_kill_ptraced_process(pid, 1); 31 } 32 read_unlock(&tasklist_lock); 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 } 58