btrfs and mount in gentoo linux

["Stefan G. Weichinger" <lists@xunil.at>]

Hello, btrfs-mailing-list,

I already tried to contact Chris Mason via pm but so far I didn't get a
reply so I taking this approach now:

I am a happy btrfs-user with gentoo linux for some time now and noticed
that the command "mount" does not show me which subvolid is mounted where.

eg.

# mount | grep sda2

/dev/sda2 on /mnt/btrfs_pool1 type btrfs
(rw,noatime,compress=lzo,ssd,space_cache)

/dev/sda2 on /mnt/oopsfiles type btrfs
(rw,noatime,compress=lzo,ssd,space_cache)

/dev/sda2 on /home type btrfs (rw,noatime,compress=lzo,ssd,space_cache)

See?

I filed a bug against util-linux at bugs.gentoo.org:

https://bugs.gentoo.org/show_bug.cgi?id=510148

but as you see from Comment 5 it isn't resolved yet due to "don't know" ;-)


Can you tell me where the problem/solution might be located?
Is it a known behavior in a way ... ?

Thanks for looking into it, I appreciate it ... I will then see to
report things back at the gentoo bugzilla to help improving btrfs
support in gentoo!

Regards, Stefan