Hello I've been working on documenting the PERF_EVENT_IOC_SET_FILTER ioctl.
I've been trying for the past 2 days and have been unable to get any result except EINVAL. Does anyone ever use this ioctl? Does anyone know how to use this ioctl? I understand it takes a pointer to a string that contains an "ftrace_filter" but the ftrace documentation is very confusing and it's unclear exactly what, if any, string is appropriate here. I've even resorted to sprinkling printk()s throughout the parser code and still can't figure out what's going on. Vince -- 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/
