From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 D70393F105D; Fri, 28 Aug 2026 01:47:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787881628; cv=none; b=gHiNt6EBDPemZH0jsbE1+rPqLtT8fx6YOgu/7vzhdYsPSzRWBnipB5/2pG5P9qS0Wi/UT3fYHBI6Tqg/ye05623cpW2pZYE8F1I7E6YxLkoiL93Iw9w2N37LdALy9O/BpWK6z+9fKQ/VsNkeiSFURlc2JrCNFKooVyc/2ycvruY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787881628; c=relaxed/simple; bh=z16+4AlADTXIim2vspJwnwfTOHgUBAYpejuztOP0yro=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ko6Cml5zMzf0y4b/bpWhooHNKNlLBqKAj7CwB60sMk4OuaHV+/cVbZ2wWNyRtcQ8ztZPPq+D2gPOl+MaUAU1ASpjBsTUE3QsKV3sPk9wATbK7HUKTg/VVCKbTFbzxT7cNrAALkb0DDJSB0t9Jb8otgztXfMHH1rgJuzVJWPrMIY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DFM1RiFj; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DFM1RiFj" 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 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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