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 1614A2F3C18; Wed, 2 Sep 2026 00:27:32 +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=1788308854; cv=none; b=Fn7JN+vNJc5faj39zwJKPPstYzhmyqnNw2EF6UgLquJTYruGncnsItF8SzFlDSbZoj1qAupKJCXhehb2dXLGvVGN4zGJTtFkj7R6HcoE4dGqYvyvDf3AQIwdiGryp098JLSttKCjNgYMPVri5v3mzAoHjn5Y8dTOq1KWJJa+VRM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788308854; c=relaxed/simple; bh=h7vbIGIL6lvt6pBf3n2A0mwhmnGmbEsny/1B7JAVAkQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=gZk8/xQzQbyT61HxB97XmbMLLOst5hLlQh7sgDHA7l2REzRUfOuUmkWMkctRMJlQ7yttIDrN+fBe8pqU7RNtboiebTg8ZymBMzEqC8w/6h96lsb8nQqJ2JlGaaS1YdVQQkog10RUZmFymhAHGZaqRMgY8zhp8o37qatPnBdJMik= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RQUO+4NY; 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="RQUO+4NY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38EA51F000E9; Wed, 2 Sep 2026 00:27:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788308852; bh=mbv8WxNYdZDCGISix1qH3K9oOQ8RMlyWgnMJQvHMmG0=; h=From:To:Cc:Subject:Date; b=RQUO+4NY2VU3f7MNQJs8O/9NYJxF9+lIgXvdVprklDTns8sq8MmOsoSniUPJJztqq 4X1/Vc1U9JgKmYoaVlRiTv+PmW3UbUPwwFR14cDhoqecuF4tC6GnL+MSJby5amyds3 Ro82wNH3VUssbS6IUR4QLeFk+xBekhw+ggsZbACziDlfrmMGWgd/tHH0SbacZYkMVT MAMYjgj2elCLpXQZDsvpnZArX+8c0FYZrBrJwfpLvLZrahdx+Det0POhB5WtmEQC/I GjC5jVmpWcCO25rvpfs0az9XePaeeMYhcI06XaTkNAa1XkuK/Wtkotj6MMXwZU1Nk4 bVuobnP1ICHng== From: SJ Park To: Andrew Morton Cc: SJ Park , stable@vger.kernel.org, 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: [PATCH 0/4] mm/damon: fix misc bugs in kunit, quota goals and sysfs refresh_ms Date: Tue, 1 Sep 2026 17:27:19 -0700 Message-ID: <20260902002725.108635-1-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 v1.3 - RFC v1.3: https://lore.kernel.org/20260828183649.71192-1-sj@kernel.org - Drop RFC tag. - Rebase to latest mm-new. Changes from RFC v1.2 - RFC v1.2: https://lore.kernel.org/20260828014659.121058-1-sj@kernel.org - Fix last_psi_total underflow. 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 | 16 ++++++++++++++-- mm/damon/sysfs.c | 11 +++++------ mm/damon/tests/core-kunit.h | 16 ++++++++++------ 3 files changed, 29 insertions(+), 14 deletions(-) base-commit: ee125db0b1f24a2f6b04e3143ffe1a14324176fe -- 2.47.3