[PATCH 11/19] mm/damon/core: disable access monitoring when probe weights are set
From: SJ Park
Date: Fri Jul 10 2026 - 09:49:25 EST
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@xxxxxxxxxx>
---
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 a0e6a5129fbf3..65f91e3b58d2e 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -3763,17 +3763,18 @@ 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