1 /* 2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) 3 * Licensed under the GPL 4 */ 5 6 #include <linux/sched/signal.h> 7 #include <linux/sched/task.h> 8 #include <linux/spinlock.h> 9 #include <linux/slab.h> 10 #include <linux/oom.h> 11 #include <kern_util.h> 12 #include <os.h> 13 #include <skas.h> 14 15 void (*pm_power_off)(void); 16 EXPORT_SYMBOL(pm_power_off); 17 18 static void kill_off_processes(void) 19 { 20 struct task_struct *p; 21 int pid; 22 23 read_lock(&tasklist_lock); 24 for_each_process(p) { 25 struct task_struct *t; 26 27 t = find_lock_task_mm(p); 28 if (!t) 29 continue; 30 pid = t->mm->context.id.u.pid; 31 task_unlock(t); 32 os_kill_ptraced_process(pid, 1); 33 } 34 read_unlock(&tasklist_lock); 35 } 36 37 void uml_cleanup(void) 38 { 39 kmalloc_ok = 0; 40 do_uml_exitcalls(); 41 kill_off_processes(); 42 } 43 44 void machine_restart(char * __unused) 45 { 46 uml_cleanup(); 47 reboot_skas(); 48 } 49 50 void machine_power_off(void) 51 { 52 uml_cleanup(); 53 halt_skas(); 54 } 55 56 void machine_halt(void) 57 { 58 machine_power_off(); 59 } 60