Re: How to get the default subvolume?

[Hugo Mills <hugo@carfax.org.uk>]

[-- Attachment #1: Type: text/plain, Size: 1028 bytes --]

On Fri, Jul 08, 2011 at 05:58:02PM +0800, Yi Yang wrote:
> I know I can set the default subvolume for a btrfs fs using
> 
> sudo btrfs subvolume set-default 256 /btrfs/mnt
> 
> But after that, how can get the default subvolume name? In my opinion,
> btrfs-progs should provide "btrfs subvolume get-default /btrfs/mnm" to get
> the default subvolume id and name, I think it is very easy to do this in
> btrfs-progs and btrfs kernel space.

   I don't think the current btrfs-progs will do it. As you pointed
out though, it's pretty easy to write the code to get the information
(I implemented it for btrfs-gui without any additional kernel code,
for example). We just need someone to implement it. :)

   I'd do it myself, but there's about a dozen things higher up my
priority list right now.

   Hugo.

-- 
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
  PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
              --- Welcome to Rivendell,  Mr Anderson... ---              

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 190 bytes --]