Re: [RFC] ext4 metadata checksumming design

Darrick J. Wong
2011-08-17T17:09:16Z

On Wed, Aug 17, 2011 at 03:57:19PM +0200, Andi Kleen wrote:
> On Tue, Aug 16, 2011 at 08:25:19PM -0700, Darrick J. Wong wrote:
> > Hi all,
> >
> > I've created a page on the ext4 wiki outlining the patchset that I'm working on
> > to add metadata checksumming to ext4. The page can be found at this address:
> > https://ext4.wiki.kernel.org/index.php/Ext4_Metadata_Checksums
>
> Can you summarize the differences to my earlier patchkit?

My new patchset intends to expand on your earlier inode/superblock patches by
adding checksums to nearly all metadata objects (directory blocks, htree,
extent tree, block/inode bitmaps, extended attributes). It also adds code to
e2fsprogs to verify the checksums, and make the necessary adjustments to the
on-disk format to add space for checksums.

--D
>
> -Andi
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