On Wed, May 03, 2023 at 02:56:44PM -0400, Kent Overstreet wrote: > On Wed, May 03, 2023 at 08:40:07AM -1000, Tejun Heo wrote: > > > Yeah, easy / default visibility argument does make sense to me. > > > > So, a bit of addition here. If this is the thrust, the debugfs part seems > > rather redundant, right? That's trivially obtainable with tracing / bpf and > > in a more flexible and performant manner. Also, are we happy with recording > > just single depth for persistent tracking? > > Not sure what you're envisioning? > > I'd consider the debugfs interface pretty integral; it's much more > discoverable for users, and it's hardly any code out of the whole > patchset. You can do the same thing with a bpftrace one liner tho. That's rather difficult to beat. Thanks. -- tejun