From mboxrd@z Thu Jan 1 00:00:00 1970 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 9BDA022DFA4; Tue, 7 Apr 2026 01:05:43 +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=1775523943; cv=none; b=jtc/Ohs/uwcPqAHsQC/4Brt2AAAnliHiQxuwsJJs8+uzebKD1U7wFRXTrPuGzvh/pYtZ9o2w5U+VMSgwqJzmmoYTquDTv73rqjoi1IBQBHc5Dpr1KlmA5AVF9yjc29YYktsTQukTFr6d9qdonTxamI+9u3WIXdAaeAUpihlbBsE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775523943; c=relaxed/simple; bh=EIRB4p0R7OQMpXCAySjtmt5LRqO984ojhpZfxIiXyb0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WjrV+TLVkHcR8U9hzSQItGg/TNa7VrSgdi0bUoOxR2A5K6Qz4WUVNVHnUGdmcynj3cqCTlzEJ3ahB0+lK3z3wS2bB3S9lHPNITzrr68DemXIF8DxufX977PFELtgZpo1XxkPeR7LPACHMymYt1gdlcZieNIdbBVV34tAuKIqz4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ODU85TTZ; 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="ODU85TTZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EB1EC2BCAF; Tue, 7 Apr 2026 01:05:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775523943; bh=EIRB4p0R7OQMpXCAySjtmt5LRqO984ojhpZfxIiXyb0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ODU85TTZFKTroXbh8r0wzowseIcB6UbnnIAZwvCjg596LBqHtS4B2P2VMF8DO++xp 9i4el1WvytI0Bb+pqpNW/22vs+gwu1q8gvvBQh7icRxckaDeR3PTqwCnr6lCK209FS YJqWZwCxiMtSZsrqMGQ08yhHIGwiTcLn41+MTks8Fhi2KkOVJPoLKZQhJUyBZstGDc YKMq3altvB5TtX2OkOSNIdCTwIpUS+6m1PQ9jPXkLG/3sSxajMicrOx2GUXNaLHy9+ AJwQaN2AzfFKY5evddqDeXbEtsKAhg4Xk7v/O4IJy49aPax9GHmZFUPDo2BLwAj029 k8+fmjjZw5oSA== From: SeongJae Park To: Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 08/10] selftests/damon/_damon_sysfs: support failed region quota charge ratio Date: Mon, 6 Apr 2026 18:05:30 -0700 Message-ID: <20260407010536.83603-9-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260407010536.83603-1-sj@kernel.org> References: <20260407010536.83603-1-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: 8bit Extend _damon_sysfs.py for DAMOS action failed regions quota charge ratio setup, so that we can add kselftest for the new feature. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/selftests/damon/_damon_sysfs.py index 120b96ecbd741..8b12cc0484405 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -132,14 +132,17 @@ class DamosQuota: goals = None # quota goals goal_tuner = None # quota goal tuner reset_interval_ms = None # quota reset interval + fail_charge_num = None + fail_charge_denom = None weight_sz_permil = None weight_nr_accesses_permil = None weight_age_permil = None scheme = None # owner scheme def __init__(self, sz=0, ms=0, goals=None, goal_tuner='consist', - reset_interval_ms=0, weight_sz_permil=0, - weight_nr_accesses_permil=0, weight_age_permil=0): + reset_interval_ms=0, fail_charge_num=0, fail_charge_denom=0, + weight_sz_permil=0, weight_nr_accesses_permil=0, + weight_age_permil=0): self.sz = sz self.ms = ms self.reset_interval_ms = reset_interval_ms @@ -151,6 +154,8 @@ class DamosQuota: for idx, goal in enumerate(self.goals): goal.idx = idx goal.quota = self + self.fail_charge_num = fail_charge_num + self.fail_charge_denom = fail_charge_denom def sysfs_dir(self): return os.path.join(self.scheme.sysfs_dir(), 'quotas') @@ -197,6 +202,18 @@ class DamosQuota: os.path.join(self.sysfs_dir(), 'goal_tuner'), self.goal_tuner) if err is not None: return err + + err = write_file( + os.path.join(self.sysfs_dir(), 'fail_charge_num'), + self.fail_charge_num) + if err is not None: + return err + err = write_file( + os.path.join(self.sysfs_dir(), 'fail_charge_denom'), + self.fail_charge_denom) + if err is not None: + return err + return None class DamosWatermarks: -- 2.47.3