From nobody Sat Feb 7 15:49:01 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 36B042D8362; Sat, 18 Oct 2025 20:44:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760820293; cv=none; b=QHMoCFdfnc/pIb8cJUQGXRyJwgco8eRIPhrrKCJ8MEyN3mgaOy0wZwSxKerBsOAldqdgzG3X/nF7Bypn7o491M9wfnOuc+mwm3FHwT9nJ4Tpesu5f+BGG0WjEq9zuJBztQh2Ym8faoo09KQ8oKWDccTiD6xgTepYrrFIcUcs6QM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760820293; c=relaxed/simple; bh=S4lW4Yt0S7MkHRb5GuM0MpYSg8IJozn8ecS6DJPFv08=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PVb2LglC2WdMsMFOXlkoTA/4FvQI+o1YZMmP8zwlZ1HLW9upxOnWN/JXg2xDR0txR6Tvwub69Sj8s0Qt+aDJulekY/5tQKBdPl7EElYqJIsYT5rqe/mojwRrInb0uU2sUc4/KiTuia8N0dM1+zpGYgR1l4guJ+/t9wPXdJgnaTs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DqXsi/52; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DqXsi/52" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D96FC4CEFE; Sat, 18 Oct 2025 20:44:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760820292; bh=S4lW4Yt0S7MkHRb5GuM0MpYSg8IJozn8ecS6DJPFv08=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DqXsi/52g5a5C4pINsXt4g4P/sejZ00AhNJflJ/NDCRkGGHM6Wo1b4RBxlcaJU3mp 3Qzyq8DIZRrbii3iw7BY/KyIObXLJtaRZ3zSV9gltUis/hoWGq2Ixan/X8kidTGNjX Ez4IRFb4PzV5170Fs0vN/yWoglJJgf8x5Lzh2aLgHxcgtTm0OSJ2nlH4cNo8sPyZog p6V3+s3CYVt/dr4+x8XMe2BarNkBFCQuv53m6pSc0yVbkur2G+dLxGhB5l0jH1FHSd SZfIB/dJiMA6QYK7p+hvcUTaoL1VFxceXBC25QoJlFEEqo+nrNpZuKhLFLCI+LW2u9 zHPEz7x7FxxoQ== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , Bijan Tabatabai , Shuah Khan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 1/4] selftests/damon/_damon_sysfs: support obsolete_target file Date: Sat, 18 Oct 2025 13:44:42 -0700 Message-ID: <20251018204448.8906-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251018204448.8906-1-sj@kernel.org> References: <20251018204448.8906-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" A DAMON sysfs file, namely obsolete_target, has newly introduced. Add a support of that file to _damon_sysfs.py so that DAMON selftests for the file can be easily written. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/= selftests/damon/_damon_sysfs.py index a0e6290833fb..748778b563cd 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -475,12 +475,14 @@ class Damos: =20 class DamonTarget: pid =3D None + obsolete =3D None # todo: Support target regions if test is made idx =3D None context =3D None =20 - def __init__(self, pid): + def __init__(self, pid, obsolete=3DFalse): self.pid =3D pid + self.obsolete =3D obsolete =20 def sysfs_dir(self): return os.path.join( @@ -491,8 +493,13 @@ class DamonTarget: os.path.join(self.sysfs_dir(), 'regions', 'nr_regions'), '= 0') if err is not None: return err - return write_file( + err =3D write_file( os.path.join(self.sysfs_dir(), 'pid_target'), self.pid) + if err is not None: + return err + return write_file( + os.path.join(self.sysfs_dir(), 'obsolete_target'), + 'Y' if self.obsolete else 'N') =20 class IntervalsGoal: access_bp =3D None --=20 2.47.3