Btrfs TODO

[Josef Bacik <josef@redhat.com>]

Hello,

Trying to put together a list of TODO items for btrfs so we can update the wiki
page fully.  So far these things are on the list

* Proper ENOSPC handling 
* O_DIRECT support (without checksumming) 
* AIO support 
* Subvolume quotas and inherited space usage information 
* Snapshot removal
* QA Suite for automated regression testing 
* Reserved space for online fsck and the ability to add storage so that a
* background extent allocation check can proceed 
* Additional ioctls to set per-inode attributes (nodatacow, nodatasum, etc)

So I think all of those are still true.  Things that I know are being worked on
are

* async block group cacheing - me
* locking changes - Chris
* backref stuff - Yan

Som other things off the top of my head are

* a better way to cache block groups in general, for this I was thinking of a
	bitmap or something like that per block group of free space
* space balancing.  this will likely need to wait on proper ENOSPC handling
* grub support :)

Thats all that I can think of atm.  Add things to the list if you think of them,
and hopefully we can update the wiki early next week.  Thanks,

Josef