diff options
| author | SJ Park <sj@kernel.org> | 2026-06-29 21:07:59 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-07-05 16:23:38 -0700 |
| commit | 816477c14e4f9bd7eb64423e39004cf74623af77 (patch) | |
| tree | 5ec6da6a40dea07f27d849b68f7ea57e66350c6c /include/trace/events | |
| parent | 6219b67097efc59b26ae4446e1efeebc7efebd10 (diff) | |
| download | linux-next-816477c14e4f9bd7eb64423e39004cf74623af77.tar.gz linux-next-816477c14e4f9bd7eb64423e39004cf74623af77.zip | |
mm/damon/core: use damon_nr_accesses_mvsum() for damos region tracing
damon_nr_accesses_mvsum() returns a value same to nr_accesses_bp. Also
the function is more simple and therefore more tolerant to errors.
Execution of the function would be more expensive than the simple read of
the field, but because the function is quite simple, the overhead should
be negligible. Use it in the DAMON region exporting trace points instead
of the nr_accesses_bp.
Link: https://lore.kernel.org/20260630040812.149729-7-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/trace/events')
| -rw-r--r-- | include/trace/events/damon.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h index 78388538acf4..8851727ae162 100644 --- a/include/trace/events/damon.h +++ b/include/trace/events/damon.h @@ -78,9 +78,11 @@ TRACE_EVENT_CONDITION(damos_before_apply, TP_PROTO(unsigned int context_idx, unsigned int scheme_idx, unsigned int target_idx, struct damon_region *r, - unsigned int nr_regions, bool do_trace), + unsigned int nr_accesses, unsigned int nr_regions, + bool do_trace), - TP_ARGS(context_idx, scheme_idx, target_idx, r, nr_regions, do_trace), + TP_ARGS(context_idx, scheme_idx, target_idx, r, nr_accesses, + nr_regions, do_trace), TP_CONDITION(do_trace), @@ -101,7 +103,7 @@ TRACE_EVENT_CONDITION(damos_before_apply, __entry->target_idx = target_idx; __entry->start = r->ar.start; __entry->end = r->ar.end; - __entry->nr_accesses = r->nr_accesses_bp / 10000; + __entry->nr_accesses = nr_accesses; __entry->age = r->age; __entry->nr_regions = nr_regions; ), |