Implementing checksums in XFS

[Christoph Hellwig]

On Fri, Oct 22, 2010 at 10:55:40PM +0200, Michael Monnerie wrote:
> Oh that would be very welcome. A "secure" filesystem sounds really good, 
> especially if it's fast as XFS is :-)
> I'd implement it everywhere immediately as soon as it's available. Will 
> existing XFS's be upgradeable in some way other that backup/restore?

checksumming inodes and btree nodes means larger data structures for
those, so no there's no upgrade path available.