linux-kernel - Re: [ 54/68] tracing: change CPU ring buffer state from tracing

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Message-ID: <20120713014745.GC3121@herton-Z68MA-D2H-B3>
Date:	Thu, 12 Jul 2012 22:47:46 -0300
From:	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Laurent Chavey <chavey@...gle.com>,
	Justin Teravest <teravest@...gle.com>,
	David Sharp <dhsharp@...gle.com>,
	Vaibhav Nagarnaik <vnagarnaik@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [ 54/68] tracing: change CPU ring buffer state from
 tracing_cpumask

On Thu, Jul 12, 2012 at 04:02:28PM -0700, Greg Kroah-Hartman wrote:
> From: Greg KH <gregkh@...uxfoundation.org>
> 
> 3.0-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Vaibhav Nagarnaik <vnagarnaik@...gle.com>
> 
> commit 71babb2705e2203a64c27ede13ae3508a0d2c16c upstream.
> 
> According to Documentation/trace/ftrace.txt:
> 
> tracing_cpumask:
> 
>         This is a mask that lets the user only trace
>         on specified CPUS. The format is a hex string
>         representing the CPUS.
> 
> The tracing_cpumask currently doesn't affect the tracing state of
> per-CPU ring buffers.
> 
> This patch enables/disables CPU recording as its corresponding bit in
> tracing_cpumask is set/unset.
> 
> Link: http://lkml.kernel.org/r/1336096792-25373-3-git-send-email-vnagarnaik@google.com

Missing patch.

> 
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