linux-kernel - Re: [PATCH] tracing: Kernel access to ftrace instances

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Message-ID: <20190319161655.2824746c@gandalf.local.home>
Date:   Tue, 19 Mar 2019 16:16:55 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Divya Indi <divya.indi@...cle.com>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tracing: Kernel access to ftrace instances

On Fri, 15 Mar 2019 16:35:25 -0700
Divya Indi <divya.indi@...cle.com> wrote:

> Ftrace provides the feature “instances” that provides the capability to
> create multiple Ftrace ring buffers. However, currently these buffers
> are created/accessed via userspace only. The kernel APIs providing these
> features are not exported, hence cannot be used by other kernel
> components.
> 
> This patch aims to extend this infrastructure to provide the
> flexibility to create/log/remove/ enable-disable existing trace events
> to these buffers from within the kernel.
> 
>

Thanks for sending this. I'm currently working on some other changes,
but will look in this when I'm finished with the other work. Should be
within this week.

-- Steve