linux-ext4 - Re: [PATCH] ext4: fix null pointer deref on mount

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Date:	Mon, 5 Jan 2009 18:34:37 -0500
From:	Theodore Tso <tytso@....edu>
To:	Thiemo Nagel <thiemo.nagel@...tum.de>
Cc:	Ext4 Developers List <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] ext4: fix null pointer deref on mount

On Mon, Jan 05, 2009 at 11:50:39PM +0100, Thiemo Nagel wrote:
>
> fs/ext4/ext4_i.h, line 34:
> typedef unsigned long ext4_group_t;

Ah, I'm looking in the ext4 patch queue, which is about to be sent to
Linus.  This clean up has been in the patch queue for a while, so I
had forgotten about it.

commit 44766d46f4641604b3af167fef2eb5fa9caee7b4
Author: Theodore Ts'o <tytso@....edu>
Date:   Tue Nov 4 20:43:52 2008 -0500

    ext4: Make ext4_group_t be an unsigned int
    
    Nearly all places in the ext3/4 code which uses "unsigned long" is
    probably a bug, since on 32-bit systems a ulong a 32-bits, which means
    we are wasting stack space on 64-bit systems.
    
    Signed-off-by: "Theodore Ts'o" <tytso@....edu>

						- Ted
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