New e2fsprog doc on the ext4 wiki page.

["Jose R. Santos" <jrs@us.ibm.com>]

Hi folks

As discussed in the conference call, we are going to create a new doc
on the ext4 wiki dedicated to track the development of some of the
features needed in e2fsprogs.  The page will consist of mostly changes
needed in order to keep e2fsprogs up to date with mainline ext4 kernel
code.

I don't plan to add bug fixes, cleanup or trivial changes to the page
as this would make it hard to keep the page up to date.  The link to
the page will be:

http://ext4.wiki.kernel.org/index.php?title=E2fsprogs_features_and_patches&action=edit

Comments on what you would like to see of this page or in the initial
list of features I have gather below are welcome. 


Undo I/O manager:
-Patches submited to the mailing list by Aneesh Kumar
-To be merged after 1.40
http://thread.gmane.org/gmane.comp.file-systems.ext4/2826

64bit blk Support:
- Patches submited to the mailing list by Valerie Clement
- Requires different binaries for doing 64bit support.
- Unified binaries will most likely require API/ABI changes.
- 64bit blk support requires 64bit binaries.  Breaks on PPC64
32bit user-space env.
- Ted T'so suggests a different approach:
      http://thread.gmane.org/gmane.comp.file-systems.ext4/2845
http://thread.gmane.org/gmane.comp.file-systems.ext4/2125

Uninitialized block groups:
- Girish Shilamkar recently submited new patch to the mailing list
- Kernel patches not in mainline yet.  What's the hold up here?
- No archive link yet.

i_version support:
- Kernel patches not in mainline yet.  Ongoing discussions.
- Patches submitted?

ext4migrate:
- Patches submited to the mailing list by Aneesh Kumar
http://thread.gmane.org/gmane.comp.file-systems.ext4/1395

Extents support:
- Patches submitted?

Nano second support:
- Patches submitted?

Greater than 32000 subdir support:
- Girish Shilamkar recently submited new patch to the mailing list
- No archive link yet.


-JRS