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mm/damon/paddr: implement DAMOS filter type YOUNG

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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.

Link: https://lkml.kernel.org/r/20240426195247.100306-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Tested-by: Honggyu Kim <honggyu.kim@sk.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2024-04-26 12:52:43 -07:00 committed by Andrew Morton
parent 2d8b24654f
commit ade414bdf6
1 changed files with 5 additions and 0 deletions
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5
mm/damon/paddr.c
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@ -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;
}