Re: [PATCH v14 4/9] ref_tracker: add a static classname string to each ref_tracker_dir

Hi Jeff,

A later patch in the series will be adding debugfs files for each
ref_tracker that get created in ref_tracker_dir_init(). The format will
be "class@%px". The current "name" string can vary between
ref_tracker_dir objects of the same type, so it's not suitable for this
purpose.

Add a new "class" string to the ref_tracker dir that describes the
the type of object (sans any individual info for that object).

Also, in the i915 driver, gate the creation of debugfs files on whether
the dentry pointer is still set to NULL. CI has shown that the
ref_tracker_dir can be initialized more than once.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---

Looks good:
Reviewed-by: Krzysztof Karas <redacted>

A side note:
I was wondering if we could improve naming a bit, but I think it
is not worth the effort. Names like "dptun" instead of
"dp_tunnel" and including "wakeref" only in
__intel_wakeref_init() but not in init_intel_runtime_pm_wakeref()
in "intel_runtime_pm" string stand out, but it is quite clear
what these names mean, so I added my r-b.

Best Regards,
Krzysztof