diff mbox series

[RFC,v2,4/4] mm/damon/paddr: support DAMOS filter type YOUNG

Message ID 20240311204545.47097-5-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 March 11, 2024, 8:45 p.m. UTC 
DAMOS filter of type YOUNG is defined, but not yet implemented by any
DAMON operations set.  Add the implementation to the DAMON operations
set for the physical address space, paddr.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 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 310b803c6277..5685ba485097 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;
 	}