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Date: Wed, 26 May 2010 06:24:46 -0400
From: Christoph Hellwig <hch@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>, Li Zefan <lizf@cn.fujitsu.com>,
       Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
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       Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>,
       LKML <linux-kernel@vger.kernel.org>, linux-mm@kvack.org
Subject: Re: [PATCH] tracing: Remove kmemtrace ftrace plugin
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References: <4BFCE849.7090804@cn.fujitsu.com> <20100526101617.GA14286@infradead.org> <20100526101837.GC5311@nowhere>
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On Wed, May 26, 2010 at 12:18:38PM +0200, Frederic Weisbecker wrote:
> But does the userspace tool support them?

The blktrace userspace tool only uses the ioctl/debugfs code.