mm/damon: add trace event for auto-tuned monitoring intervals

mm/damon: add trace event for auto-tuned monitoring intervals

Patch series "mm/damon: add trace events for auto-tuned monitoring
intervals and DAMOS quota".

The aim-oriented auto-tuning features for monitoring intervals and DAMOS
quota are important and recommended.  Add tracepoints for observabilities
of those tuned values and the tuning itself.

This patch (of 2):

Aim-oriented monitoring intervals auto-tuning is an important and
recommended feature for DAMON users.  Add a trace event for the
observability of the tuned intervals and tuning itself.

Link: https://lkml.kernel.org/r/20250704221408.38510-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20250704221408.38510-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>