From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793553399; b=Jl4neQCVdKoBDqUYfi9y4ELq8mtKWXHg/siQi2G1o13V262B2rAiVrd9ra4yzrI4Kf94 9fFansHOVfS2zjc5H6T60Ak1211BSpQHbdujPXUQ222YAltaHoRmkfT+aiOsW/mxaxvj+ cHR3OIo2BUL2h0c97q34L+/7vhtMLIDYQxeVo18LsWlnWhrzcXFDO0g5JOq9W0N8CldOD MDluPANKzFoAcD+DkkaOc/miSzqPf4iLzyR//BJakFC1LDxe2x/tj5G0SPS2seJxsB5rU bpXVLP9c+6ry4yBIOTPxXO9IxSK4egdJbgKjNwIHdq0Slb+2reo7PpbCk8iJNMywP9A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793553399; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Transfer-Encoding; bh=9FIAjLQl49vWGxEAT5mry9z/qprr2ACY4K70jv59AGk=; b=O4MQ5rn3x2xlx2NGSNp0kj9YxCVD0JZtmfAC9bEW/us4iRBt+el2bNmUQSvJzblfUccX Vtqr8yPoemDXBPz6VYhXwUQMNSwcUNUBIOwhUkQ+mZ7ZSd2/ZLyjUM2zVA+eC2kKA1cQr 3TlwW9e5OcGOEH36kflW5D3OK/QTDwIgfod4RPn1tif1PXfRFzuf8Zpf/kn8UFodZBAZF gyjw2smm+H4gSlXI0wHYSqhTBRRFZqT7DGZkgYI3Kp/dsoRbEUNsMuF+7VnBdCxcY9uie hDanhS/tFYZ+HCLiD28wQKq5wymbzgbP7BucJmPfqPM8Pt91gQrxgKsGgqR2u9VfMug== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=fCdRHVbT; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D6033606A325; Sun, 1 Nov 2026 17:16:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=fCdRHVbT Received: by smtp.kernel.org (Postfix) with ESMTPSA id 183001F00A16; Sun, 1 Nov 2026 17:16:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793553398; bh=9FIAjLQl49vWGxEAT5mry9z/qprr2ACY4K70jv59AGk=; h=From:To:Cc:Subject:Date; b=fCdRHVbTv7LssVGIaJeoJS4MdHHPVs9+iHHW6hyzu5w1w5Y6o/UDhYyRW/dIRklP9 yloZkzUlKQldmVHFvh4o+n7mfWqaz62e9lKgkuexu1b9ipH+ZqMRB6rqXgRC5x7yAe vA3CNOrQ2yJK06fJl5IqTJCn2RvN+cRDMKFTtCU7ZhDQQfDH0C4ajQ3pbjnr+ImD5R qZ5Zug2sS3UiFx76sr4iyehCTX/8KgHXuWNED2zVWRsyhX1aB6dI7oRiqNNLFMkJBG +fOxNd4LC0QPoGfYKDnnKwAT1tAvtgJKUNVDYSYY2EoWU8vUvV3YoOVLizt4+qB/gf YLJxAyXuWkD5g== From: SJ Park To: Cc: SJ Park , Andrew Morton , Shuah Khan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v2 0/6] mm/damon: misc improvements/cleanups for core, vaddr, sysfs and tests Date: Sun, 1 Nov 2026 09:16:23 -0800 Message-ID: <20261101171630.81477-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Refactor code, optimize code speed, and add missing feature supports on various areas of DAMON. Optimize the efficiency of vaddr damos_migrate action under filter failures with patch 1. Use damos->last_applied on damos_migrate action in vaddr and support sz_filter_passed for damos_migrate action in vaddr, respectively with patch 2 and 3. Drop a redundant and racy quota goal target value validation in sysfs, in favor of that in the core layer, with patch 4. Drop unused variables and imports from selftests with patch 5 and 6. Changes from RFC - RFC: https://lore.kernel.org/20261031202614.96036-1-sj@kernel.org - Drop charge_target_from fixup consolidation. - Add a patch for using last_applied on vaddr migrate action. - Add missed damos_va_migrate_private->sz_filter_passed setup. - Fix wrong commit message for unused imports removal. SJ Park (6): mm/damon/vaddr: advance migration attempt in folio level for filter out mm/damon/vaddr: use damos->last_applied for migrate action mm/damon/vaddr: implement sz_filter_passed for migrate_{hot,cold} action mm/damon/sysfs-schemes: drop redundant and racy zero target_value check selftests/damon/damos_apply_interval: remove unused variables selftests/damon: remove unused imports of os and sys modules mm/damon/sysfs-schemes.c | 3 -- mm/damon/vaddr.c | 28 +++++++++++-------- .../selftests/damon/damos_apply_interval.py | 2 -- .../damon/sysfs_no_op_commit_break.py | 1 - ...sysfs_update_schemes_tried_regions_hang.py | 1 - 5 files changed, 17 insertions(+), 18 deletions(-) base-commit: 807c0ce92f8424fbb7eb13e7ea48746f68b24dca -- 2.47.3