From nobody Wed Dec 17 01:07:50 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A4D752641ED; Thu, 20 Feb 2025 19:35:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740080116; cv=none; b=oFX7zi9E5tzAzJLitd12aAosdafNsGW7/AJGjgYuxNyycOc4Lo9xKINVtyc+B1GcC4sdCH+ryQHc7smlX+WyjPZqybeh2v6oewAvt41uJjnFUTjoPfNm99IDQq4NlV/HK8cjmFx2eaQAuPb4M32HeALXYNzPLcAYr3iLoJwjPFQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740080116; c=relaxed/simple; bh=9/Gqh5HBFp5EuQgZh8Vsw0TLf0LkxPqdJjQTIPzuVw0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=r/Ar54F5/XLMJm/UBLjpFSesUOp4h3mOTgDmF/8ck8Hls1WyDEiAUUJ/ntsMVJ9hX19BIHrNe45d0cT1KpXGcAnje5qXIOZHDWBbDOI4X09KPV8XlzSuz9DDfTK0YBIaup4RIgcH8HimBm+PQU0LHa3QGU3cdfSfP4CsLysdzzw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gV/svjnb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gV/svjnb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5CB6EC4CED6; Thu, 20 Feb 2025 19:35:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740080116; bh=9/Gqh5HBFp5EuQgZh8Vsw0TLf0LkxPqdJjQTIPzuVw0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gV/svjnbc/hLOZlrJ/7AWMBpbwF4SUEljC2gTcd5iUQg//lYy3q2XGpomCkt6SsMZ EbUHIikzp2M4Xds61ge0YSxndS7aY2qTe7BOlC7PeKyt/vgOFi/yJyosLa8Nw39dwH kAgiwCAOaACRx0U8CDDHJRiCWg+ASaw4nxsMljcMKN0y7kekkbjBroGDsRy/TjzUWf zo6u33V+SQ1HZfg/muPUFwD1PxiuhWQpIp3qIUYKoXXKg74I+AyUFCMkOlM8tPsHRT OcSr8pdqkaqXYaY/mcruftESTSQ4ny0KwZw15Ll9/ExWQF2kB8cKib5G3JJ6hctczR xsTTQ+rcM8wXQ== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 2/9] mm/damon/paddr: support ops_filters Date: Thu, 20 Feb 2025 11:35:02 -0800 Message-Id: <20250220193509.36379-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250220193509.36379-1-sj@kernel.org> References: <20250220193509.36379-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" DAMON keeps all DAMOS filters in damos->filters, and will make damos->ops_filters to have all operations layer handled DAMOS filters with upcoming changes. But DAMON physical address space operations set implementation (paddr) is handling only damos->filters. To avoid any breakage during the upcoming change, make paddr to handle both. After the change is made, ->filters support on paddr can be safely removed. Signed-off-by: SeongJae Park --- mm/damon/paddr.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 25090230da17..3e651308ba5d 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -257,6 +257,10 @@ 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; } =20 @@ -287,6 +291,12 @@ static unsigned long damon_pa_pageout(struct damon_reg= ion *r, struct damos *s, break; } } + damos_for_each_ops_filter(filter, s) { + if (filter->type =3D=3D DAMOS_FILTER_TYPE_YOUNG) { + install_young_filter =3D false; + break; + } + } if (install_young_filter) { filter =3D damos_new_filter( DAMOS_FILTER_TYPE_YOUNG, true, false); @@ -535,6 +545,8 @@ static bool damon_pa_scheme_has_filter(struct damos *s) =20 damos_for_each_filter(f, s) return true; + damos_for_each_ops_filter(f, s) + return true; return false; } =20 --=20 2.39.5