linux-ext4 - Re: Updated patches for journal checksums.

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Message-ID: <46778DBE.3090801@clusterfs.com>
Date:	Tue, 19 Jun 2007 12:03:10 +0400
From:	Alex Tomas <alex@...sterfs.com>
To:	Girish Shilamkar <girish@...sterfs.com>
CC:	Ext4 Mailing List <linux-ext4@...r.kernel.org>,
	Theodore Tso <tytso@....edu>,
	Andreas Dilger <adilger@...sterfs.com>
Subject: Re: Updated patches for journal checksums.

say, at mount time we fund transaction logged. this means part of it can be
on a disk. what do we do if transaction in the journal is found with wrong
checksum? leave partial transaction in-place?

thanks, Alex

Girish Shilamkar wrote:
> Hi,
> 	The journal checksums patches for ext4 and e2fsprogs sent on 30th May
> had run into problems on big-endian machines. I have made the required
> changes. 
> The major updates are:
> 1. Checksum was written in little endian format in the commit header,
> changed it to big-endian.
> 2. The crc32 code ported to userspace (which is used by e2fsprogs) had
> problem with #ifdef, fixed that.
> 3. The crc32 user space code used i386 assembly code for swabbing
> changed it to generic one.
> 4. Removed various #includes, which caused compilation errors on ppc
> machine.
> 
> Any comments/suggestions are always welcome.
> 
> Thanks,
> Girish.
> 


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