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From: SeongJae Park <sj@kernel.org>
Cc: SeongJae Park <sj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	damon@lists.linux.dev, kernel-team@meta.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [RFC PATCH v2 5/9] mm/damon/paddr: support only damos->ops_filters
Date: Wed, 26 Feb 2025 17:57:50 -0800	[thread overview]
Message-ID: <20250227015754.38789-6-sj@kernel.org> (raw)
In-Reply-To: <20250227015754.38789-1-sj@kernel.org>

DAMON physical address space operation set implementation (paddr)
started handling both ->filters and ->ops_filters to avoid breakage
during the change for the ->ops_filters setup.  Now the change is done,
so paddr's support of ->filters is a waste that can safely dropped.
Remove it.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/paddr.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index 3e651308ba5d..432ea4efdc4b 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -253,10 +253,6 @@ static bool damos_pa_filter_out(struct damos *scheme, struct folio *folio)
 {
 	struct damos_filter *filter;
 
-	damos_for_each_filter(filter, scheme) {
-		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;
@@ -285,12 +281,6 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s,
 	struct folio *folio;
 
 	/* check access in page level again by default */
-	damos_for_each_filter(filter, s) {
-		if (filter->type == DAMOS_FILTER_TYPE_YOUNG) {
-			install_young_filter = false;
-			break;
-		}
-	}
 	damos_for_each_ops_filter(filter, s) {
 		if (filter->type == DAMOS_FILTER_TYPE_YOUNG) {
 			install_young_filter = false;
@@ -543,8 +533,6 @@ static bool damon_pa_scheme_has_filter(struct damos *s)
 {
 	struct damos_filter *f;
 
-	damos_for_each_filter(f, s)
-		return true;
 	damos_for_each_ops_filter(f, s)
 		return true;
 	return false;
-- 
2.39.5


  parent reply	other threads:[~2025-02-27  1:58 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-27  1:57 [RFC PATCH v2 0/9] mm/damon: make allow filters after reject filters useful and intuitive SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 1/9] mm/damon/core: introduce damos->ops_filters SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 2/9] mm/damon/paddr: support ops_filters SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 3/9] mm/damon/core: support committing ops_filters SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 4/9] mm/damon/core: put ops-handled filters to damos->ops_filters SeongJae Park
2025-02-27  1:57 ` SeongJae Park [this message]
2025-02-27  1:57 ` [RFC PATCH v2 6/9] mm/damon: add default allow/reject behavior fields to struct damos SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 7/9] mm/damon/core: set damos_filter default allowance behavior based on installed filters SeongJae Park
2025-02-27  5:50   ` SeongJae Park
2025-02-28  4:48     ` SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 8/9] mm/damon/paddr: respect ops_filters_default_reject SeongJae Park
2025-02-27  1:57 ` [RFC PATCH v2 9/9] Docs/mm/damon/design: update for changed filter-default behavior SeongJae Park

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