[RFC PATCH 4/6] mm/damon/sysfs-schemes: setup range_{min,max} for probe_hits_wsum filter
From: SJ Park
Date: Sun Sep 06 2026 - 17:07:56 EST
Extend DAMON sysfs interface to support probe_hits_wsum input. Also
update sysfs input based scheme build logic to setup the min/max probe
hits weighted sum range as user provided.
Signed-off-by: SJ Park <sj@xxxxxxxxxx>
---
mm/damon/sysfs-schemes.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 4d9147d2a269e..e297a20c0af03 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -589,7 +589,10 @@ damos_sysfs_filter_type_names[] = {
.type = DAMOS_FILTER_TYPE_TARGET,
.name = "target",
},
-
+ {
+ .type = DAMOS_FILTER_TYPE_PROBE_HITS_WSUM,
+ .name = "probe_hits_wsum",
+ },
};
static ssize_t type_show(struct kobject *kobj,
@@ -2844,6 +2847,14 @@ static int damon_sysfs_add_scheme_filters(struct damos *scheme,
}
filter->sz_range.min = sysfs_filter->range_min;
filter->sz_range.max = sysfs_filter->range_max;
+ } else if (filter->type == DAMOS_FILTER_TYPE_PROBE_HITS_WSUM) {
+ if (sysfs_filter->range_min >
+ sysfs_filter->range_max) {
+ damos_destroy_filter(filter);
+ return -EINVAL;
+ }
+ filter->sz_range.min = sysfs_filter->range_min;
+ filter->sz_range.max = sysfs_filter->range_max;
}
damos_add_filter(scheme, filter);
--
2.47.3