[RFC PATCH v2.2 07/28] mm/damon/core: do data attributes monitoring

[SeongJae Park <sj@kernel.org>]

Implement the data attributes monitoring execution.  Update kdamond to
invoke the probes application callback, and reset the aggregated number
of per-region per-probe positive samples for every aggregation interval.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index f6b4beb4b8ecd..1c9d2fb69f98d 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -1886,10 +1886,14 @@ static void kdamond_reset_aggregated(struct damon_ctx *c)
 		struct damon_region *r;
 
 		damon_for_each_region(r, t) {
+			int i;
+
 			trace_damon_aggregated(ti, r, damon_nr_regions(t));
 			damon_warn_fix_nr_accesses_corruption(r);
 			r->last_nr_accesses = r->nr_accesses;
 			r->nr_accesses = 0;
+			for (i = 0; i < DAMON_MAX_PROBES; i++)
+				r->probe_hits[i] = 0;
 			damon_verify_reset_aggregated(r, c);
 		}
 		ti++;
@@ -3172,6 +3176,8 @@ static int kdamond_fn(void *data)
 
 		if (ctx->ops.check_accesses)
 			max_nr_accesses = ctx->ops.check_accesses(ctx);
+		if (ctx->ops.apply_probes)
+			ctx->ops.apply_probes(ctx);
 
 		if (time_after_eq(ctx->passed_sample_intervals,
 					next_aggregation_sis)) {
-- 
2.47.3