[PATCH] Xfsprogs: add fiemap command to xfs_io

[Christoph Hellwig]

On Fri, Jan 14, 2011 at 07:51:41AM -0500, Josef Bacik wrote:
> When trying to add a test for hole punching I noticed that the "bmap" command
> only works on XFS, which makes testing hole punching on other fs's kind of
> difficult.  To fix this I've added an fiemap command that works almost exactly
> like bmap.  It is formatted similarly and takes similar flags, the only thing
> thats different is obviously it doesn't spit out AG info and it doesn't make
> finding prealloc space optional.  This is my first foray into all of this stuff
> so a good hard look would be appreciated.  I tested it with a few different
> files to make sure bmap and fiemap both looked the same.  Thanks,

Looks good to me.