On Fri, Nov 02, 2012 at 05:28:01AM +0700, Fajar A. Nugraha wrote:

On Fri, Nov 2, 2012 at 5:16 AM, cwillu [off-list ref] wrote:

quoted

quoted

 btrfs fi label -t /btrfs/snap1-sv1
Prod-DB-sand-box-testing

Why is this better than:

# btrfs su snap /btrfs/Prod-DB /btrfs/Prod-DB-sand-box-testing
# mv /btrfs/Prod-DB-sand-box-testing /btrfs/Prod-DB-production-test
# ls /btrfs/
Prod-DB  Prod-DB-production-test

... because it would mean possibilty to decouple subvol name from
whatever-data-you-need (in this case, a label).

My request, though, is to just implement properties, and USER
properties, like what we have in zfs. This seems to be a cleaner,
saner approach. For example, this is on Ubutu + zfsonlinux:

# zfs create rpool/u
# zfs set user:label="Some test filesystem" rpool/u
# zfs get creation,user:label rpool/u
NAME     PROPERTY    VALUE                  SOURCE
rpool/u  creation    Fri Nov  2  5:24 2012  -
rpool/u  user:label  Some test filesystem   local

   Don't we already have an equivalent to that with user xattrs?

   Hugo.

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