46 	ulong kstack_base = (ulong) kbt->task->stack;  in in_kernel_stack()
126 	return kbt->task->mm &&  in is_sigreturn()
127 		(kbt->it.pc == ((ulong)kbt->task->mm->context.vdso_base +  in is_sigreturn()
230 	kbt->task = t;  in KBacktraceIterator_init()
328 	vma = find_vma(kbt->task->mm, address);  in describe_addr()
397 		if (kbt->task == current && address < PAGE_OFFSET &&  in tile_show_stack()
398 		    !have_mmap_sem && kbt->task->mm && !in_interrupt()) {  in tile_show_stack()
400 				down_read_trylock(&kbt->task->mm->mmap_sem);  in tile_show_stack()
417 		up_read(&kbt->task->mm->mmap_sem);  in tile_show_stack()
457 void show_stack(struct task_struct *task, unsigned long *esp)  in show_stack()  argument
460 	if (task == NULL || task == current) {  in show_stack()
464 		KBacktraceIterator_init(&kbt, task, NULL);  in show_stack()
473 static void save_stack_trace_common(struct task_struct *task,  in save_stack_trace_common()  argument
486 	} else if (task == NULL || task == current) {  in save_stack_trace_common()
490 		KBacktraceIterator_init(&kbt, task, NULL);  in save_stack_trace_common()
509 void save_stack_trace_tsk(struct task_struct *task, struct stack_trace *trace)  in save_stack_trace_tsk()  argument
511 	save_stack_trace_common(task, NULL, false, trace);  in save_stack_trace_tsk()