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Date: Thu, 28 May 2009 16:42:38 +1000
From: David Gibson <dwg@au1.ibm.com>
To: "K.Prasad" <prasad@linux.vnet.ibm.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
       Steven Rostedt <rostedt@goodmis.org>,
       Frederic Weisbecker <fweisbec@gmail.com>, Ingo Molnar <mingo@elte.hu>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Benjamin Herrenschmidt <benh@au1.ibm.com>, maneesh@linux.vnet.ibm.com,
       Roland McGrath <roland@redhat.com>,
       Masami Hiramatsu <mhiramat@redhat.com>
Subject: Re: [Patch 06/12] Use the new wrapper routines to access debug
	registers in process/thread code
Message-ID: <20090528064238.GC3091@yookeroo.seuss>
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	"K.Prasad" <prasad@linux.vnet.ibm.com>,
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On Mon, May 11, 2009 at 05:23:44PM +0530, K.Prasad wrote:
> From: Alan Stern <stern@rowland.harvard.edu>
> 
> This patch enables the use of abstract debug registers in
> process-handling routines.

[snip]
>  
> +	p->thread.io_bitmap_ptr = NULL;

Why is manipulating the io_bitmap_ptr relevant to debug register
handling?

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson