Subject: Re: [RFC 1/4] Large Blocksize support for Ext2/3/4
From: Mingming Cao <cmm@us.ibm.com>
Reply-To: cmm@us.ibm.com
To: clameter@sgi.com
Cc: linux-fsdevel@vger.kernel.org, adilger@clusterfs.com, sho@tnes.nec.co.jp,
       ext4 development <linux-ext4@vger.kernel.org>,
       linux-kernel@vger.kernel.org
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Organization: IBM Linux Technology Center
Date: Fri, 31 Aug 2007 17:01:30 -0700
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On Wed, 2007-08-29 at 17:47 -0700, Mingming Cao wrote:

> Just rebase to 2.6.23-rc4 and against the ext4 patch queue. Compile tested only. 
> 
> Next steps:
> Need a e2fsprogs changes to able test this feature. As mkfs needs to be
> educated not assuming rec_len to be blocksize all the time.
> Will try it with Christoph Lameter's large block patch next.
> 

Two problems were found when testing largeblock on ext3.  Patches to
follow. 

Good news is, with your changes, plus all these extN changes, I am able
to run ext2/3/4 with 64k block size, tested on x86 and ppc64 with 4k
page size. fsx test runs fine for an hour on ext3 with 16k blocksize on
x86:-)

Mingming

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