Re: [RFC PATCH v2 18/28] mm/damon: trace probe_hits

[Steven Rostedt]

On Wed, 13 May 2026 17:06:10 -0700
SeongJae Park <sj@xxxxxxxxxx> wrote:

> Btw, if you don't mind, may I ask your opinion about the name having '_v2'
> suffix?  I chose that as an RFC phase temporal name that doesn't break the
> compatibility, planning to give it a better name later.  But I start feeling
> just extending the original one might be another option because tracepoints are
> not strict stable ABI to my understanding, and the change of the TP_prink
> format should be simple enough (append the probe_hits= part) that the user
> space could reasonably deal with.

It's only a stable ABI if some useful userspace tooling depends on it.
Otherwise, feel free to change.

Nothing really should be parsing the TP_printk() format part as it is
really inefficient to do so. That's why I created libtraceevent and
libtracefs to do the parsing of the raw data for you.

-- Steve