From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout.efficios.com (smtpout.efficios.com [167.114.26.122]) (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 E44563D978; Tue, 2 Jul 2024 17:37:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=167.114.26.122 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719941860; cv=none; b=ngxz4F+tEHWAXhSuhJxNKEa1eC/2ZOKXd/6E/dK6kxOs7tmScNNeEOouf5nzsMktAbtIJyNzGCuBoT8yR9T2p8sddSC7VGyB9OOmTQSUyKdhcX1YBGKHBsPTAbtmfkOQoAFDCaZNgaRPawkT8eku56VRLW6SV+GRgKs4wiFdxYg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719941860; c=relaxed/simple; bh=/2A8bz/WUlwR9rk6cjNCv2bK6UDxNPWNhwZ6FREREq8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=MM/Trxjit+iDBDspeAScGqzbnwBa7Lrec9BMSdHhOC3D4HgmATlh1MBj43Gw8AcmJtFpq9Dbw8vNS1Fm1hkrwF8Da+ucO+uTsNaxWB0e0WzCPTV149ndrt9LvyzvphXee2RpS2WGfzQ2UcJqUJ8n2S3ux1wOhuP0er/oKun+9G8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=efficios.com; spf=pass smtp.mailfrom=efficios.com; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b=EGvKwXxK; arc=none smtp.client-ip=167.114.26.122 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=efficios.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=efficios.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b="EGvKwXxK" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=efficios.com; s=smtpout1; t=1719941856; bh=/2A8bz/WUlwR9rk6cjNCv2bK6UDxNPWNhwZ6FREREq8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=EGvKwXxKye1hcoiqUR/QpqOSiNHnwQdrAWhPy1kCoXaFVTJAhNlf5Ahqbs+u/J6+o HN5FzpuSri5CjlJyuvpq7Qv+lM1VSV9ahoAAeM1Ay/d+XTdVHtXmexrhiNkBHCAZlN cn9IGIONz7ja2bPol25hYE7oNlZNnUD1Hx6Dr2IuwI3nCu/wEVfIDDosEdd2COMuaB 2/37JXLQEn9a0Zicx/6irek+RDat/hASSgVB8nmeFbTwLFGFXAkXzQdQrqN5S6ZtM1 0Ui27WVRB5QOZLMZmyRAew5WYTVqb5Hxhep8VHlkIRupm+1F7I1bKJrISlUb6LPKix gpeoc99Cz1CVQ== Received: from [172.16.0.134] (192-222-143-198.qc.cable.ebox.net [192.222.143.198]) by smtpout.efficios.com (Postfix) with ESMTPSA id 4WD98w1p5Vz18f6; Tue, 2 Jul 2024 13:37:36 -0400 (EDT) Message-ID: Date: Tue, 2 Jul 2024 13:37:50 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v23 3/5] tracing: Allow user-space mapping of the ring-buffer To: Steven Rostedt Cc: Beau Belgrave , "Dmitry V. Levin" , Vincent Donnefort , mhiramat@kernel.org, kernel-team@android.com, rdunlap@infradead.org, rppt@kernel.org, david@redhat.com, linux-trace-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, Linus Torvalds References: <20240510140435.3550353-1-vdonnefort@google.com> <20240510140435.3550353-4-vdonnefort@google.com> <20240630105322.GA17573@altlinux.org> <20240630084053.0b506916@rorschach.local.home> <9a9c8ea4-8e17-4e7e-95fe-7b51441a228c@efficios.com> <20240702111807.13d2dd2c@rorschach.local.home> <20240702125126.50a6267c@rorschach.local.home> Content-Language: en-US From: Mathieu Desnoyers In-Reply-To: <20240702125126.50a6267c@rorschach.local.home> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2024-07-02 12:51, Steven Rostedt wrote: > On Tue, 2 Jul 2024 11:32:53 -0400 > Mathieu Desnoyers wrote: > >> If we use '*' for user events already, perhaps we'd want to consider >> using the same range for the ring buffer ioctls ? Arguably one is >> about instrumentation and the other is about ring buffer interaction >> (data transport), but those are both related to tracing. > > Yeah, but I still rather keep them separate. No objection, I'm OK either way. Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com