Re: [RFC 1/3] rv: add per-edge dwell-time statistics primitive

[Gabriele Monaco <gmonaco@redhat.com>]

On Thu, 2026-08-27 at 09:23 +0200, Tobias Schaffner wrote:
> Add a small primitive that records, per automaton edge, how long the
> monitor dwelled before taking it with a count, a sum and a maximum.
> 
> The counters are per-CPU and lock-free, so a monitor's hot path can update
> them without disabling interrupts and without perturbing the very latency
> being measured.
> 
> Signed-off-by: Tobias Schaffner <tobias.schaffner@siemens.com>
> ---
>  MAINTAINERS                  |  1 +
>  include/linux/rv_edge_stat.h | 45 ++++++++++++++++++++++++++++++++++++
>  2 files changed, 46 insertions(+)
>  create mode 100644 include/linux/rv_edge_stat.h
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 8014b9f8253e..04589dda0873 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -23654,6 +23654,7 @@ L:	linux-trace-kernel@vger.kernel.org
>  S:	Maintained
>  F:	Documentation/trace/rv/
>  F:	include/linux/rv.h
> +F:	include/linux/rv_edge_stat.h
>  F:	include/rv/

Any reason why you don't use include/rv/edge_stat.h ?

You wouldn't need to touch the maintainers file and could just

  #include <rv/edge_stat.h>

Thanks,
Gabriele