Am 08.07.2014 22:20, schrieb Chris Murphy:
> 
> On Jul 8, 2014, at 1:07 PM, Stefan G. Weichinger <li...@xunil.at> wrote:
>>
>> Can you tell me where the problem/solution might be located?
>> Is it a known behavior in a way … ?
> 
> It's known. Ubuntu has a patch so that mount shows subvolume names. 
> This information is probably available on Gentoo with cat 
> /proc/self/mountinfo.


Unfortunately no.

See example from my laptop:

# grep btrfs /proc/self/mountinfo
14 0 0:14 /rootfs / rw,noatime shared:1 - btrfs /dev/sda3
rw,compress=lzo,ssd,space_cache

51 14 0:14 / /mnt/uncow rw,noatime shared:19 - btrfs /dev/sda3
rw,compress=lzo,ssd,space_cache

156 14 0:35 / /home/sgw rw,noatime shared:117 - btrfs
/dev/mapper/_dev_sda4 rw,compress=lzo,ssd,space_cache


for reference: the subvols are:

# btrfs su list /
ID 256 gen 7982 top level 5 path rootfs
ID 275 gen 3972 top level 5 path __snapshots
ID 283 gen 3274 top level 275 path __snapshots/rootfs_2014_06_14
ID 288 gen 7465 top level 5 path uncow


What does the Ubuntu patch apply to? util-linux?

Thanks! Stefan

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