'btrfs subvolumee show' gives no path to btrfs system root (volid=5)
when snapshot is in the folder of subvolume.
Step to reproduce.
1.btrfs subvolume create xyz
2.btrfs subvolume snapshot xyz xyz/xyz
3.btrfs subvolume snapshot <mountpoint-for-btrfs-root>/xyz
4.btrfs subvolumme show xyz
output
.....
Snapshot(s)
xyz
xyz
.....
picture from my console reproducing this. Whatchout for my personal fs-layout
my mountpoint for volid=5 is - as seen in the findmount command r at
top of the photo /mnt/btrfs/sdc16-svid-5
https://s31.postimg.org/9f0d7xb7f/is_this_a_bug.png
If that can add anything, same thing happends when rootvolume is
mounted by path. (for the moment it is mounted by volid).
/Peter Holm
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