linux-ext4 - Re: [PATCH] fix ext2 allocator overflows above 31 bit blocks

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Date:	Fri, 20 Apr 2007 19:43:39 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	cmm@...ibm.com
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] fix ext2 allocator overflows above 31 bit blocks

Mingming Cao wrote:
> On Fri, 2007-04-20 at 18:14 -0500, Eric Sandeen wrote:
>> It's a bug, today.   
> 
> They are fixed in mm tree, as part of the patches which backports ext3
> block reservation code to ext2. filesystem block numbers are all
> ext2_fsblk_t type(i.e. unsigned long)(see ext2_new_blocks()). Maybe need
> a round of thorough review to see if anything left, but I think what in
> mm tree looks good.

Oh... oops.  I didn't think to check mm, didn't expect to find those 
changes on ext2.  Ok, I will double-check that against what I did.

> And those patches in mm tree also backports the ext3 best-effort
> allocates multiple blocks code (allocate multiple blocks within the
> block reservation window as much as possible), FYI.

Ok, thanks Mingming!

-Eric
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