On Fri, Oct 22, 2021 at 05:09:36PM +0200, Peter Zijlstra wrote: > From: Ard Biesheuvel <ardb@xxxxxxxxxx> > > Implement the flavor of CONFIG_STACKTRACE that relies mostly on generic > code, and only need a small arch_stack_walk() helper that performs the > actual frame unwinding. > > Note that this removes the SMP check that used to live in > __save_stack_trace(), but this is no longer needed now that the generic > version of save_stack_trace_tsk() takes care not to walk the call stack > of tasks that are live on other CPUs. > > Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
