backtrace_work 24 kernel/backtracetest.c static DECLARE_COMPLETION(backtrace_work); backtrace_work 29 kernel/backtracetest.c complete(&backtrace_work); backtrace_work 39 kernel/backtracetest.c init_completion(&backtrace_work); backtrace_work 41 kernel/backtracetest.c wait_for_completion(&backtrace_work);