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bh=9FIAjLQl49vWGxEAT5mry9z/qprr2ACY4K70jv59AGk=; b=iIeVSB/DNU13BCiAZoBHE7BbI+RtrlNxc+vFppjGCUSqjF3iaz4DcIkugF6fnGLmlmfbRa x/9YmtUjzqfYS8eAKqMziHRCeGUBq6n/qfRkw2htN3QhruOfp3YN/3v/LEFpNtZTRg/cOF M18zvF4y7YJ22PrdYZHSynllAOsbPtU= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=fCdRHVbT; spf=pass (imf28.hostedemail.com: domain of sj@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 6A99442E31; Sun, 1 Nov 2026 17:16:38 +0000 (UTC) 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-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: y1borjfrj6wziweorfmucrs484ytc8yp X-Rspamd-Queue-Id: 39660C0008 X-Rspam-User: X-Rspamd-Server: rspam12 X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-HE-Tag: 1793553399-624831 X-HE-Meta: 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 LbU/psap DarBp+o2daxSLPivDJA5DGs+F9+iRDgCMeq39E93X0rW3hxIf/97YbBUcqwn8h00wTIGEzubgv46cyRNp62P9JANADlEA6Xuzl/RLqBWRyNB/LU//LJNfQtm7rL9cvgqjefd0tiHa+zLJHLFXDXvMPHTEt1rNUZmdQWJDFPceHn8omOfiIrG6/NO5o9hp40xrUfF9hBsalB9Ybd05VAw9tmkYwvufiXg0BftNJsUAjLK+F33GjoVqinQPyF4YDd9wh6TQPYuvB3q1rXqqBb74hLIgDw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 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