Hi all, during investigating performance issues I frequently have the need to include the request tag in the scsi tracepoints. While this can be easily done for scsi, including it in block trace output is not that easy due to the interdependency with the blktrace utilities. Also there had been some discussion on KS last year, but with no conclusive result IIRC. At LSF I'd like to discuss - Do we consider blktrace (and any other tracepoint in eg SCSI) as a stable API? - How do we go about modifying blktrace? Is this even desired? Or should any trace event modification be opaque to blktrace output? Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
