From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA978C30658 for ; Tue, 2 Jul 2024 16:51:33 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 551286B00A4; Tue, 2 Jul 2024 12:51:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4D9886B00A5; Tue, 2 Jul 2024 12:51:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 353B96B00A6; Tue, 2 Jul 2024 12:51:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 118326B00A4 for ; Tue, 2 Jul 2024 12:51:33 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id BBD7D1C1179 for ; Tue, 2 Jul 2024 16:51:32 +0000 (UTC) X-FDA: 82295403624.17.7FB700F Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf22.hostedemail.com (Postfix) with ESMTP id 0C436C0018 for ; Tue, 2 Jul 2024 16:51:30 +0000 (UTC) Authentication-Results: imf22.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf22.hostedemail.com: domain of "SRS0=9K6F=OC=goodmis.org=rostedt@kernel.org" designates 139.178.84.217 as permitted sender) smtp.mailfrom="SRS0=9K6F=OC=goodmis.org=rostedt@kernel.org" ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1719939074; a=rsa-sha256; cv=none; b=rg3usbPkVFABuVdeJ7i2x9Mz+6ccnSIax2WeWEN2e7OuSgXq5lJHcnrPT33/LRMu0CKc+J N5+4riDpQaPA03gpyl8OsJpn+42cwxMSzqs9T1fJEV4WCIFDKT4Tbad6IMlBYGTpIE6gdh LuPoJuB0quGaUn4c4sVHBxBdJIxMzrY= ARC-Authentication-Results: i=1; imf22.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf22.hostedemail.com: domain of "SRS0=9K6F=OC=goodmis.org=rostedt@kernel.org" designates 139.178.84.217 as permitted sender) smtp.mailfrom="SRS0=9K6F=OC=goodmis.org=rostedt@kernel.org" ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1719939074; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ICrjSB/puKn4FpfGSe2MZmByySg0y3v/6MkyAa0VOnY=; b=XmgLrQ3ffy5Oyham5JSYTQSHTB9JhOIfsBfP7fqE+7u8lZh2cm9FafbH20oUkozZtHtQPG +dX54II3cWnYdRBahcoDm4Q2YKnhCrL5qk/FY9+2QjQO6nehfUf2CLJl1C0MhUfn9B4O1K WwsqBp1EHS8Py0Pu14sHbn1akAMy2ZM= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id D917361B98; Tue, 2 Jul 2024 16:51:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EBB78C116B1; Tue, 2 Jul 2024 16:51:27 +0000 (UTC) Date: Tue, 2 Jul 2024 12:51:26 -0400 From: Steven Rostedt To: Mathieu Desnoyers 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 Subject: Re: [PATCH v23 3/5] tracing: Allow user-space mapping of the ring-buffer Message-ID: <20240702125126.50a6267c@rorschach.local.home> In-Reply-To: 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> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 0C436C0018 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: sdfw6f8bc1k4c3zzzjdjmtiruj8ijggz X-HE-Tag: 1719939090-273757 X-HE-Meta: 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 NhIhFWot DGarLGAbaB2qacT+dw1wyx4Yr2hP0DENULzbieAMWXGwsy+7Nsi4FXWEjeCaHbjJ5+ddOlCA1N+woGcKYMZ7bo+tx4TioeEhdIeuSdS4iyi2z6v5jQzncTGDGzgBNtN5prXgK4T3ez9RE/mZu2eOaLafUVrdAMLiICGdgAkiyRDK1vPazLRmrqxvPiPQveglklj/n6k3BrJvkMzzMHEm409XfdBWNWVcEx2aaosZ70/zymA7CnlylqnjBwHEINldU3PdFQNYl/vlS2irB6vfDLvpBEyjIh1/hBzEtGG5AOCZs4mKTItytXLJpHw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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. Beau, care to send a patch adding an entry into that ioctl document for user events? -- Steve