Re: PI and data checksumming for XFS

Christoph,

with all the PI and checksumming discussions I decided to dust of my
old XFS PI and data checksumming prototypes. This is pre-alpha code so
handle it with care. I tried to document most issues and limitations
in the patch, but I might have missed some. It survives an xfstests
quick run with just three failures, one of which is a pre-existing
failure on a PI disable device when creating dm-thin.

This is along the lines of how I was originally intending the integrity
infrastructure to be used by filesystems. So I'm happy to see some
momentum in that department!

-- 
Martin K. Petersen	Oracle Linux Engineering