On 03/19/2013 08:36 AM, Steven Rostedt wrote: > On Tue, 2013-03-19 at 15:10 +0000, David Howells wrote: >> Steven Rostedt <rostedt@xxxxxxxxxxx> 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 ;-) > Yes, given that the machinery is already there we might as well use it. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
