linux-kernel - Re: [PATCH v23 3/5] tracing: Allow user-space mapping of the ring-buffer

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Date: Tue, 2 Jul 2024 13:37:50 -0400
From: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Beau Belgrave <beaub@...ux.microsoft.com>, "Dmitry V. Levin"
 <ldv@...ace.io>, Vincent Donnefort <vdonnefort@...gle.com>,
 mhiramat@...nel.org, kernel-team@...roid.com, rdunlap@...radead.org,
 rppt@...nel.org, david@...hat.com, linux-trace-kernel@...r.kernel.org,
 linux-mm@...ck.org, linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
 Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v23 3/5] tracing: Allow user-space mapping of the
 ring-buffer

On 2024-07-02 12:51, Steven Rostedt wrote:
> On Tue, 2 Jul 2024 11:32:53 -0400
> Mathieu Desnoyers <mathieu.desnoyers@...icios.com> 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