On Tue, 2010-11-30 at 22:20 +0100, mat wrote: > That's look fine for me. > > But I wonder why ftrace_arch_code_modify_prepare isn't called ? > > It is only called when we start/stop tracing ? Correct. There's no reason to use it for the changing of mcount callers to nops. For core kernel code, it happens before SMP is enabled. For modules, it happens before the module code is executed. Except for what Rusty stated with the module parameters, but if you are executing complex code with that, you deserve what you get ;-) The initial changes are made outside of stop machine. The code is not being executed by anyone else. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
