[RFC PATCH 08/16] mm/damon/core: disable access monitoring when probe weights are set

[SJ Park <sj@kernel.org>]

When users set probe weights, they are interested in the data
attributes.  Not necessarily they are interested in data access
patterns.  Disable the data access monitoring in the case.

Signed-off-by: SJ Park <sj@kernel.org>
---
 mm/damon/core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 9bb884ab135ec..ad0f28469e633 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -3714,17 +3714,18 @@ static int kdamond_fn(void *data)
 		unsigned long next_aggregation_sis = ctx->next_aggregation_sis;
 		unsigned long next_ops_update_sis = ctx->next_ops_update_sis;
 		unsigned long sample_interval = ctx->attrs.sample_interval;
+		bool access_check_disabled = damon_has_probe_weights(ctx);
 
 		if (kdamond_wait_activation(ctx))
 			break;
 
-		if (ctx->ops.prepare_access_checks)
+		if (!access_check_disabled && ctx->ops.prepare_access_checks)
 			ctx->ops.prepare_access_checks(ctx);
 
 		kdamond_usleep(sample_interval);
 		ctx->passed_sample_intervals++;
 
-		if (ctx->ops.check_accesses)
+		if (!access_check_disabled && ctx->ops.check_accesses)
 			max_nr_accesses = ctx->ops.check_accesses(ctx);
 		if (ctx->ops.apply_probes)
 			ctx->ops.apply_probes(ctx, false, false);
-- 
2.47.3