From ac7b094bf4d6bd34cea84d1f97f4fe5c45984b6a Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Tue, 4 Mar 2025 13:19:06 -0800 Subject: [PATCH] mm/damon/paddr: support ops_filters 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 Cc: Jonathan Corbet Signed-off-by: Andrew Morton --- mm/damon/paddr.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index d5db313ca717..2b1ea568a431 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -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; } -- 2.25.1