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 if (proc_mm) 19 /* 20 * FIXME: need to loop over userspace_pids 21 */ 22 os_kill_ptraced_process(userspace_pid[0], 1); 23 else { 24 struct task_struct *p; 25 int pid; 26 27 read_lock(&tasklist_lock); 28 for_each_process(p) { 29 struct task_struct *t; 30 31 t = find_lock_task_mm(p); 32 if (!t) 33 continue; 34 pid = t->mm->context.id.u.pid; 35 task_unlock(t); 36 os_kill_ptraced_process(pid, 1); 37 } 38 read_unlock(&tasklist_lock); 39 } 40 } 41 42 void uml_cleanup(void) 43 { 44 kmalloc_ok = 0; 45 do_uml_exitcalls(); 46 kill_off_processes(); 47 } 48 49 void machine_restart(char * __unused) 50 { 51 uml_cleanup(); 52 reboot_skas(); 53 } 54 55 void machine_power_off(void) 56 { 57 uml_cleanup(); 58 halt_skas(); 59 } 60 61 void machine_halt(void) 62 { 63 machine_power_off(); 64 } 65