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mm/damon/paddr: support ops_filters

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DAMON keeps all DAMOS filters in damos->filters.  Upcoming changes will
make it to use damos->ops_filters for all operations layer handled DAMOS
filters, though.  DAMON physical address space operations set
implementation (paddr) is not ready for the changes, since it handles only
damos->filters.  To avoid any breakage during the upcoming changes, make
paddr to handle both lists.  After the change is made, ->filters support
on paddr can be safely removed.

Link: https://lkml.kernel.org/r/20250304211913.53574-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2025-03-04 13:19:06 -08:00 committed by Andrew Morton
parent ab82e57981
commit ac7b094bf4
1 changed files with 12 additions and 0 deletions
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12
mm/damon/paddr.c
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@ -260,6 +260,10 @@ static bool damos_pa_filter_out(struct damos *scheme, struct folio *folio)
if (damos_pa_filter_match(filter, folio))
return !filter->allow;
}
damos_for_each_ops_filter(filter, scheme) {
if (damos_pa_filter_match(filter, folio))
return !filter->allow;
}
return false;
}
@ -290,6 +294,12 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s,
break;
}
}
damos_for_each_ops_filter(filter, s) {
if (filter->type == DAMOS_FILTER_TYPE_YOUNG) {
install_young_filter = false;
break;
}
}
if (install_young_filter) {
filter = damos_new_filter(
DAMOS_FILTER_TYPE_YOUNG, true, false);
@ -538,6 +548,8 @@ static bool damon_pa_scheme_has_filter(struct damos *s)
damos_for_each_filter(f, s)
return true;
damos_for_each_ops_filter(f, s)
return true;
return false;
}