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 E58762FFDCC; Fri, 8 May 2026 15:51:30 +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=1778255491; cv=none; b=Axns/i3lPVDPFojNG3j8cVVAUcnFqh5QNgiqQPmuOagNr6wu64xJF54E/sLqgTriMTw3SKWwA6vIionDFK3lh95lDBfPPHpsPx8EBgAkujNqjZVu95KSTomFaKDDxC6KYSTJOic3Ol6ACeRUxBrZthhbdDHpwIIwCZJJRyLBW6M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778255491; c=relaxed/simple; bh=Kxlk9BoN8eK+FNKkDL+ZScIhpFgNCmmdYamMS73UYMY=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References; b=fONukhdVRuxft43e8Y9Oz/Dxu61A2pmK/ZOrJFw/Bgwuk4yZtSRN+hYhqgkfJI3kX4QXLvWR7Ef61zcEuIvcNb+Wc0O7W480PwcVJ3+7UmUwocJWQXdQ7KYxnuSKMj+rtvNHznuyjtNVUVTGUncht2f8eab3zEOW0GVs5oOfGZ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TRJl6D/C; 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="TRJl6D/C" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65275C2BCB0; Fri, 8 May 2026 15:51:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778255490; bh=Kxlk9BoN8eK+FNKkDL+ZScIhpFgNCmmdYamMS73UYMY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=TRJl6D/Cdwnju3b4Axwu0o+6SrR+ensPOMPhL3HHcSNYl3YevvpAt7nF41Y41t+o8 Oo/PSkQ/qgJl1GV6pZPdspoqzTspQkf6QbG75y+AipNtsdKqD/UGeLIDr1KlgJ2X1D MY5pcehfi5/RBmas22y+seTzzkIKS30lSa/yjNIJWWBL0YT0xCZZzRxoP5yK5BdlLW TDIq2QAGhT4I6LWm8Yzk8qer7Ntwphju3u4AJA3CWY5xBBUjsrrWwFzK+FZpOB4S9O MzM4KrvHOXT/9TbtVEFvDg+zFBeKdtdvBEApJb0XghmA/XS8LcVs468ffotZfQh459 WbPNlWCp7O+iw== Date: Fri, 08 May 2026 05:51:29 -1000 Message-ID: <202d0aa0f8da75986a895ffbd564b78d@kernel.org> From: Tejun Heo To: Chen Wandun Cc: longman@redhat.com, chenridong@huaweicloud.com, hannes@cmpxchg.org, mkoutny@suse.com, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] cgroup/cpuset: skip hardwall ancestor scan in v2 mode in cpuset_current_node_allowed() In-Reply-To: <20260508062940.4094652-1-chenwandun@lixiang.com> References: <20260508062940.4094652-1-chenwandun@lixiang.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hello, is_in_v2_mode() is also true for v1 mounted with cpuset_v2_mode, where cpuset.mem_exclusive / cpuset.mem_hardwall are still settable. Would that be a problem here? cpuset_v2() looks like a tighter fit. Thanks. -- tejun