On Tue, 2013-03-19 at 15:10 +0000, David Howells wrote: > Steven Rostedt <[email protected]> wrote: > > > Why? If we remove the tracepoint from the slowpath and use a table swap, > > then we wouldn't need to use the slowpath at all. > > How are you engineering a table swap? Do you patch the system call code to > change the immediate address loaded or do you put in a level of indirection?
Patching the call site would probably be the easiest method. We've gotten pretty good at doing that ;-) -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
