From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-53.mta0.migadu.com [91.218.175.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6FE39443AA3 for ; Thu, 20 Aug 2026 12:42:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787229746; cv=none; b=Mg/BtP8LW8gb5TH2ViARxL/A7HbuHPuDzUjKwiJut6SxeRdJaunJCWJ0L6XvbfU/T0dj5QkOZ6Jqf3eUilOLfB6iLM6DSdPFA6PFGtkK6r9r+C1d6d+g2o3NV7yTKbHek+DfswSwLWM1//vy2PlTfKeomHGT17+uNiI/tChleXY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787229746; c=relaxed/simple; bh=+SgWMGaA7CDQAMPHI+yux+D8sc7tgzO72UDAwsRv8ow=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qHDoMcDyCYd34/5f6gh+cGN1LyESLzrwDoL2f+PMdLUcPdQKWHhtzwTf3jYPYkTICw3Hb7UQJfTKXYZUiFwtN/oBAgcCxVElngtHyiKDLhTTNO6zmbk6L/l6UYQ93xOv0f9LljYW2HnyQ2nXyTmVoqBgd5WT6NEHR5YeCVrj4zA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=aGBooXZy; arc=none smtp.client-ip=91.218.175.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="aGBooXZy" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=+SgWMGaA7CDQAMPHI+yux+D8sc7tgzO72UDAwsRv8ow=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1787229741; v=1; x=1787834541; b=aGBooXZyi3L2+WFmlQKjvD8HZRUOXkPV7MZxalfNTL7BlSuDYLKeywiBKZeMGiY+2weAlY7Z D7uG3wfp+KNwmLhe12vXi6nXVZjaDM9qIR8NAHz1idxYhrMSCAd6P5ClliGDw9mzcK15qBt2rSX Bv37AJ0RCTvTrRWN4gEkGPTw= X-Envelope-To: linux-kernel@vger.kernel.org Received: from zgp.. (223.70.159.239) by smtp.migadu.com with ESMTPS id ce2966af263b7a65; Thu, 20 Aug 2026 12:42:21 +0000 X-Mizu-Trace-ID: ce2966af263b7a65 X-Migadu-Flow: FLOW_OUT From: Guopeng Zhang To: longman@redhat.com, cgroups@vger.kernel.org Cc: ridong.chen@linux.dev, tj@kernel.org, hannes@cmpxchg.org, mkoutny@suse.com, shuah@kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Guopeng Zhang Subject: [PATCH 01/17] selftests/cgroup: Drop invalid boot isolation comparison Date: Thu, 20 Aug 2026 20:41:46 +0800 Message-ID: <20260820124202.517160-2-guopeng.zhang@linux.dev> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260820124202.517160-1-guopeng.zhang@linux.dev> References: <20260820124202.517160-1-guopeng.zhang@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Guopeng Zhang check_isolcpus() clears ISOLCPUS before rebuilding it from sched domain data. Comparing that empty value with /sys/devices/system/cpu/isolated makes the test fail whenever isolcpus=domain is present. The cpuset.cpus.isolated check above and the sched domain check below already validate their respective interfaces. Remove the comparison and the unused HKICPUS read. Fixes: 6df415aa46ec ("cgroup/cpuset: Defer housekeeping_update() calls from CPU hotplug to workqueue") Signed-off-by: Guopeng Zhang --- tools/testing/selftests/cgroup/test_cpuset_prs.sh | 6 ------ 1 file changed, 6 deletions(-) diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh index da8f7b920178..fdb3185570d4 100755 --- a/tools/testing/selftests/cgroup/test_cpuset_prs.sh +++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh @@ -797,7 +797,6 @@ check_isolcpus() EXPECTED_ISOLCPUS=$1 ISCPUS=${CGROUP2}/cpuset.cpus.isolated ISOLCPUS=$(cat $ISCPUS) - HKICPUS=$(cat /sys/devices/system/cpu/isolated) LASTISOLCPU= SCHED_DOMAINS=/sys/kernel/debug/sched/domains if [[ $EXPECTED_ISOLCPUS = . ]] @@ -835,11 +834,6 @@ check_isolcpus() ISOLCPUS= EXPECTED_ISOLCPUS=$EXPECTED_SDOMAIN - # - # The inverse of HK_TYPE_DOMAIN cpumask in $HKICPUS should match $ISOLCPUS - # - [[ "$ISOLCPUS" != "$HKICPUS" ]] && return 1 - # # Use the sched domain in debugfs to check isolated CPUs, if available # -- 2.43.0