Btrfs devel - May 2014 - Can a snapshot become a parent subvolume when its parent is deleted?

So, I had btrfs_pool1 that was trashed/lost as discussed here recently.

I did btrfs send btrfs_pool2/root_ro.date | btrfs receive /mnt/btrfs_pool1

Then btrfs subvolume snapshot root_ro.date root

Now, after I delete root_ro.date on btrfs_pool1, shouldn't root become a
parent subvolume?

Right now, I have:
legolas:/mnt/btrfs_pool1# btrfs subvolume list -q . 
ID 390 gen 5954 top level 5 parent_uuid faea7df8-d51a-6b4b-994b-887d55267cce
path root
legolas:/mnt/btrfs_pool1# btrfs subvolume list  -u .  |grep
faea7df8-d51a-6b4b-994b-887d55267cce
legolas:/mnt/btrfs_pool1#

Is it possible not to have a parent?

If so, shouldn't you become a parent at that time?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" -
A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901
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