linux-kernel - Re: [PATCH] ftrace: fix setting of pos in read

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Message-ID: <20080423095220.GA23908@elte.hu>
Date:	Wed, 23 Apr 2008 11:52:20 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>, akpm@...dmis.org,
	Soeren Sandmann Pedersen <sandmann@...hat.com>,
	Pekka Paalanen <pq@....fi>
Subject: Re: [PATCH] ftrace: fix setting of pos in read_pipe


* Steven Rostedt <rostedt@...dmis.org> wrote:

> In resetting the iterator in read_pipe, the reset of pos was 
> postitioned in the wrong location with respect to the memset 
> operation. The current code sets pos, incorrectly, to zero.

applied - but what is missing from your changelog is effects of this 
bug. When testers check lkml they might be interested in that 
information. Is the result of this bug an incorrect trace_pipe output? 
(double entries, or missed entries?)

	Ingo
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