From nobody Thu Oct 9 02:12:52 2025 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 1291B219A95; Sun, 22 Jun 2025 21:03:37 +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=1750626217; cv=none; b=hR1ITaLV0jqzek5R8KnUWLSMPplm5Jbya9OihcHHgaubpcEhkgZvqJRn6dEsL9u4hPmxot2ebpUEQv4BL0I1TQxnKdZAXscSSWmqA1tmAT/PE5sS9Y99ZUpfES0XkQt2SK9U188u+fgxJT7xYgW9UmXOBvwJ3W5wYhEoG11QkoQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750626217; c=relaxed/simple; bh=/RUstGJfkJjRI+Pr6WW5egPsetwstPl+AsaLyBk7JE4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Afy70MDEWkUFEgopKvkoBSL7BP4JUXQMfEs/zhcqLK7mZ1bQFCMmO5CqV8pmDk9DfUgBqW2LNqC0omdHAgVBF2X4qEL9x2ppAPPBQyIXQmG1efTl7SAKALsM9ofk2jwNaPUayAl985f7zCDWKmH3cXibDNIuIPjQLAudF61V3eo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SutzdAv5; 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="SutzdAv5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C050AC4CEF9; Sun, 22 Jun 2025 21:03:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750626216; bh=/RUstGJfkJjRI+Pr6WW5egPsetwstPl+AsaLyBk7JE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SutzdAv5FmZPQLzQd5uxJiGRCyX33vYX8YZ6a9jyu9gW6/MSmjfCPZHCgt2dLLuR4 NahuqXySvzmk4Ncl4QfHBqqz0F8uCvIX2Bt9xE8KBvmuDrr0NkYfQ5NYE7GfO0oOuS dQeY40T9lZ06fq8ew4Oqsf5xagcKtI4KwVx9KftQB5YSN8dlwtKwFgX7Q1HulkF+BU qKvXBrsMa3jekBKzPi6Oh0+rrOjf3qNx9Bz8uBowfGmMl9F+Wmt1z3XK7rPRsQTFw7 NeH6JuyVBQ3o3R/YMuF7wITjp9leHWbMxAROdtmA9xlIhJNjd3JKgqOF2IV0DazRVe x1/XdEJnlr+nQ== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , Shuah Khan , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 2/6] selftests/damon/_damon_sysfs: set Kdamond.pid in start() Date: Sun, 22 Jun 2025 14:03:26 -0700 Message-Id: <20250622210330.40490-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250622210330.40490-1-sj@kernel.org> References: <20250622210330.40490-1-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" _damon_sysfs.py is a Python module for reading and writing DAMON sysfs for testing. It is not reading resulting kdamond pids. Read and update those when starting kdamonds. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/= selftests/damon/_damon_sysfs.py index 5b1cb6b3ce4e..f587e117472e 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -408,6 +408,9 @@ class Kdamond: if err is not None: return err err =3D write_file(os.path.join(self.sysfs_dir(), 'state'), 'on') + if err is not None: + return err + self.pid, err =3D read_file(os.path.join(self.sysfs_dir(), 'pid')) return err =20 def stop(self): --=20 2.39.5