[PATCH 0/4] Updated fiemap patches

[Theodore Ts'o <tytso@mit.edu>]

Since Mark has been busy, with his agreement I've updated the fiemap
patches based on the last series of comments.  All of the patches have
been cc'ed to linux-fsdevel, and the first patch (which contains the
interface definition) has been cc'ed to Michael Kerrisk and to the new
linux-abi mailing list.

Note that this patch has gone through a very long and tortured series
of bike shed painting, and my goal is to see if we can get consensus
so we can get this merged into the 2.6.28 merge window.  If not, I
will likely push an ext4-specific ioctl to Linus, as the long and
painful process of getting a common API that everyone can agree upon
is now starting to block ext4 online defrag development.

For that reason, this patch doesn't define support for things like
compression, as this was vetoed by Cristoph Hellwig.  There is however
plenty of room for the ABI to be extended to add this later.  It is my
devout wish that this get pushed at the next merge window, and folks
who want to extended it later can provide patches to do so.  I would
rather not have an extension of the game where one set of people
complain because the interface defines some feature, and another set
of people complain because it doesn't and in the meantime, months and
months go by with no forward progress.  Thanks in advance...

						- Ted