stack_trace_save_tsk
nr_entries = stack_trace_save_tsk(task, entries,
unsigned int stack_trace_save_tsk(struct task_struct *task,
entry->nr = stack_trace_save_tsk(task, (unsigned long *)entry->ip,
stack_trace_save_tsk(tsk, lat.backtrace, LT_BACKTRACEDEPTH, 0);
bt_len = stack_trace_save_tsk(p, bt, SCX_EXIT_BT_LEN, 1);
EXPORT_SYMBOL_GPL(stack_trace_save_tsk);
EXPORT_SYMBOL_GPL(stack_trace_save_tsk);