linux-ext4 - Re: ext4: buffer underrun in ext4_ext

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Date:	Fri, 7 Aug 2009 23:32:07 -0400
From:	Theodore Tso <tytso@....edu>
To:	Roel Kluin <roel.kluin@...il.com>
Cc:	linux-ext4@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: ext4: buffer underrun in ext4_ext_split()?

On Fri, Aug 07, 2009 at 08:19:49PM +0200, Roel Kluin wrote:
> If `depth' is less or equal to `at', a buffer underrun occurs
> 
> Signed-off-by: Roel Kluin <roel.kluin@...il.com>
> ---
> I am not sure whether this is possible.

I'm pretty sure this could never happen.  ext4_ext_split is only
called from one place, and only when the leaf node is full.

       	    	       	   	     	      - Ted
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