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 A8B0F381AED; Wed, 29 Apr 2026 17:06:48 +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=1777482408; cv=none; b=SBx0BirvRcpUQzP3uyvu6H7xsYPqIXb8wiijIfDwnTrUzaE500zxUbMj2+IRUVApjajqg53mSN/hDqX1kfU+vBXFLIGyMVgJXy/rnlMVn2+8LHMoU79XsnNE+okT5Fij4Ua/9JymJPRIwrtXOW6OWXQqiG48yUdxdgInWuVNjso= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777482408; c=relaxed/simple; bh=W+e85/3UUoxojKZye3dsivHqpEq/haQzQCWst1X+ZwU=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References; b=s4ZmbQgIbuvZ2cTBn2c1BoMXW0LMMtyWB8c+fItbg82bQ29QJUqtB+OIC2w0Yw23HHtIqz3rEOSMR1UZtIwbi+scBWqIhoURupqH0aAY+qyfKZakG1emaZgxT+n1L5RTIwCnuFQTYt5cmV6iWGSuYib6Y1tKn8L2t6de6/uB7+s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n5U9w0D1; 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="n5U9w0D1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DB54C19425; Wed, 29 Apr 2026 17:06:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777482408; bh=W+e85/3UUoxojKZye3dsivHqpEq/haQzQCWst1X+ZwU=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=n5U9w0D1jQStQnXjkurXOq/7KB/0A5xQYJ7mc0EsNm72V0ZWgJEi8casmrt6E/GP3 Js15bcYjrDengjznFqG9yRQe80xSvoUwZDXLTO3sx0EFC36h33M0kWyQ6kBvwbrfbe gIyMX2FGFm3w8LpeqRCsSiLL0jnkYTEoOE0XuYExW0wr+qQb/dtNr2oZOYBcB5REpp +1iC68c7Ax1ZMbIRQr+k+3CVzu0nQh0eUVj5Vllj+4hmy4ubxsqkV1zPdBc0R8uCPK VU4gfMdn0j4aJhDX0q8chkwKZOBt6g6koDRhedbX4nUeeyCT31CYoamQkheVJ0XgY0 N7DSv/SYea79w== Date: Wed, 29 Apr 2026 07:06:46 -1000 Message-ID: From: Tejun Heo To: Andrea Righi Cc: David Vernet , Changwoo Min , sched-ext@lists.linux.dev, Emil Tsalapatis , linux-kernel@vger.kernel.org, Cheng-Yang Chou Subject: Re: [PATCH 08/17] sched_ext: Add scx_bpf_cid_override() kfunc In-Reply-To: References: <20260428203545.181052-1-tj@kernel.org> <20260428203545.181052-9-tj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hello, I don't think we need to gate it. The override clears scx_cid_topo[] to SCX_CID_TOPO_NEG, so subsequent scx_bpf_cid_topo() lookups return the well-defined "no topo" sentinel. The scheduler that overrode the mapping has already opted out of the auto-probed topology. Thanks. -- tejun