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imf08.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=DFM1RiFj; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf08.hostedemail.com: domain of sj@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=sj@kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1787881628; b=QoqrewVhOAokZnLQl4Y985PkKdMStBm1aSa9OxrjAsP7+iepkoBej06Be8GqMDU5XQcNnT DjqVO5biYM+QmaSFQhzwqwFUx8dowFmeHzM9HqhxbQ/s6Hqu3YBD9bqfF6OoaeBKR9Hq3L C4+rPtHIuqfDjiooHwFyqKzyM3NKpAk= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 88864437A3; Fri, 28 Aug 2026 01:47:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0E1FD1F000E9; Fri, 28 Aug 2026 01:47:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787881627; bh=jwAE0OKmOfKjtRIOtQSeb+A90V4Qlobxr/nJmHJ07Bs=; h=From:To:Cc:Subject:Date; b=DFM1RiFjlPKAiVHZKRyNpMjRnMZaU+0bhHwt8VgyM3ahTgyRwY86zfxDIC+qDlW0N 00plNta7loMbT82IqQpuFmLlXIba1+sdGnJjPp8Uyc0lgJ9BFR6jPbBYZNpgW/5e0d gETy9US/QVDEA2/d2DSTU46c1TQrUQy/TtUBomkEwbF/T/xKc1+XmECIMSwkEqvhin ZAUJaYnRKGTeW9EeuAJUOTtnD916AIKRGAfmxwrjHh05tkPVuOsaou9k9v536vVnBY f/64bKivZ+k5SJSMQMrfF3EOChSx6UYF5CyYqqZIMoW5UnD1m1HBnprIVFpCx3B25C GXlYBq7PJNS+A== From: SJ Park To: Cc: SJ Park , stable@vger.kernel.org, Andrew Morton , Brendan Higgins , David Gow , Quanmin Yan , Ravi Jonnalagadda , damon@lists.linux.dev, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.2 0/4] mm/damon: fix misc bugs in kunit, quota goals and sysfs refresh_ms Date: Thu, 27 Aug 2026 18:46:54 -0700 Message-ID: <20260828014659.121058-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: C1110160006 X-Stat-Signature: giheomoshce1au4sn949y6k3epgdo9na X-Rspam-User: X-HE-Tag: 1787881628-8582 X-HE-Meta: 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 A4n+iKo1 JjS+PDD8O5MSMgjngLFvU99NDFrIoaY8NMY3RkFtwzz2znN48+J2rNDi21WZRIM2RP6MkuEES0NjTXIWAxzF5fTXDn2R3JYl+C4l8bM6PKZwTpKeimgOs2jzAPygV2F2gOy8NwgSSHYgMUPNOnFYfrljuBYN8oBGW5lhf5ke0EdcRTH8hMPJU7/GPX501qCpGwEfQJQRXTCMOPhY+ThNG/ts/ItYuzCEv+FZPDrrap0afXsNsplA1sj7rTNoGyTUiVlBDRlpt2nKM6pzD06w4BLaJGpTMCXqBnp3HWVGXkA1e37fALyxoormPOPf6hSsTJrpVIwcCDaaWJ2iDTR+rqPPOQ9+F0ZT5qlK/OZZi6DnzLas= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMOS quota goals commit unit test is mistakenly not testing a test case that was designed to test. DAMOS quota goals and DAMON sysfs refresh_ms file have bugs that can produce non critical but still unexpected behaviors. Fix the bugs. Patch 1 fixes the DAMOS quota goals commit unit test to cover a mistakenly uncovered case. Patches 2 and 3 fix the bugs in DAMOS PSI goal initialization and eligible_mem_bp online commit, respectively. Patch 4 fixes the bug in DAMON sysfs refresh_ms file handling. Changes from RFC v1.1 - RFC v1.1: https://lore.kernel.org/20260827134429.123023-1-sj@kernel.org - Fix quota goals commit unit test that was mistakenly missing a test case. - Initialize last_psi_total as uninitialized at the beginning. - Correct kunit test for changed last_psi_total initialization behavior. Changes from RFC - RFC: https://lore.kernel.org/20260827042920.93580-1-sj@kernel.org (Mistakenly missed RFC tag) - Fix build error. - Add eligible_mem_bp nid commit fix. SJ Park (4): mm/damon/tests/core-kunit: test committing psi goal to psi goal mm/damon/core: handle uninitialized damos_quota_goal->last_psi_total mm/damon/core: copy nid for eligible_mem_bp damos quota goal commit mm/damon/sysfs: set next refresh jiffies per sysfs context mm/damon/core.c | 13 ++++++++++++- mm/damon/sysfs.c | 11 +++++------ mm/damon/tests/core-kunit.h | 16 ++++++++++------ 3 files changed, 27 insertions(+), 13 deletions(-) base-commit: 90e1725f175e19e191adc6e1b0f0317feeddd268 -- 2.47.3