[RFC PATCH v1.1 2/5] mm/damon/paddr: support DAMON_FILTER_TYPE_PGIDLE_SET

[SJ Park <sj@kernel.org>]

Implement DAMON_FILTER_TYPE_PGIDLE_SET support on the physical address
space DAMON operation set (paddr).

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

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index b8f4d28165dd7..5abfabaa339e0 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -151,6 +151,12 @@ static bool damon_pa_filter_match(struct damon_filter *filter,
 		else
 			matched = damon_folio_young(folio);
 		break;
+	case DAMON_FILTER_TYPE_PGIDLE_SET:
+		if (!folio)
+			matched = false;
+		else
+			matched = damon_folio_young(folio) == false;
+		break;
 	default:
 		return damon_ops_filter_match(filter, folio);
 	}
-- 
2.47.3