diff mbox series

[4/7] mm/damon/paddr: implement DAMOS filter type YOUNG

Message ID 20240426195247.100306-5-sj@kernel.org (mailing list archive)
State New
Headers show
Series mm/damon: add a DAMOS filter type for page granularity access recheck | expand

Commit Message

SeongJae Park April 26, 2024, 7:52 p.m. UTC 
DAMOS filter of type YOUNG is defined, but not yet implemented by any
DAMON operations set.  Add the implementation on 'paddr', the DAMON
operations set for the physical address space.

Signed-off-by: SeongJae Park <sj@kernel.org>
Tested-by: Honggyu Kim <honggyu.kim@sk.com>
---
 mm/damon/paddr.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index 310b803c62779..5685ba485097d 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -214,6 +214,11 @@  static bool __damos_pa_filter_out(struct damos_filter *filter,
 			matched = filter->memcg_id == mem_cgroup_id(memcg);
 		rcu_read_unlock();
 		break;
+	case DAMOS_FILTER_TYPE_YOUNG:
+		matched = damon_folio_young(folio);
+		if (matched)
+			damon_folio_mkold(folio);
+		break;
 	default:
 		break;
 	}