From nobody Sun Feb 8 18:15:34 2026 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 A971F2780E6; Tue, 4 Mar 2025 21:19:19 +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=1741123159; cv=none; b=BfAc5k1SzDoO3gRm8fRJLBlgPawv9jeEJvHn5o2SgVrmvR0QG2InyGrPyF1p06xHB2PkkE8coN94tSvZIh/CePjXrxqPfInLXM+lS/AvUpCaKxWS4yK0D1X/2bes38h+K3O0USnthFNvKUkm2OiQeQ0/z+tcU5dpIeFKCOhW6cQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741123159; c=relaxed/simple; bh=npc/D62/iA9M79tii02t66kR94TtHspqQy52dl64bMM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NYZC/ClfKahoND1FAo6Ny8fYGEphXVppf8WcGc4ITAGd+hRKqjwQ+dnQTESfFNTT8b/PONkIbbIcqYhm2QdfBFsMjjpwV7lVOVJY5E6P99lswemMCsss9k0kATGLU5aRO4gLD1LDOZa/+WpHcdzu3cv/0sL3a/jvzzy7I9iBfLM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iCRgqwvI; 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="iCRgqwvI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E55E1C4CEE9; Tue, 4 Mar 2025 21:19:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741123159; bh=npc/D62/iA9M79tii02t66kR94TtHspqQy52dl64bMM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iCRgqwvIepxKyJkApXpQpFtf9uNM7OzhQLJgmaj98xMr1qkhcgYsDa+nnCpkbHJiL J3wxit9ZLErX8nYSh8Wwjfvs4E+Z9S6eu63CgACgOSlaKeoYIopwExJN/2j8EKQP9v Ur3T/foL5tPNO8J6X5Q725XhMzg1/PBGUrQLeRkpf0VT8LVQCKG+6R648hFubunCOG SDXTaTCGm1Rg9CK8GFoM6PC8L6vXsQY8DKtLOrh88On4GYwkHfpObVbelT7w0REU6i N1XXUaEQ/FdPBpUY3GU1NOuYyKZ0XB+PXtROZKtWEQEhSEI1yG+oSI4Csceux57neB bqjkubU1JzYSg== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 2/9] mm/damon/paddr: support ops_filters Date: Tue, 4 Mar 2025 13:19:06 -0800 Message-Id: <20250304211913.53574-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250304211913.53574-1-sj@kernel.org> References: <20250304211913.53574-1-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. 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. 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 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; } =20 @@ -290,6 +294,12 @@ 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); @@ -538,6 +548,8 @@ 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