On Tue, 22 Aug 2017 17:45:37 +0200
Ulli Horlacher <framstag@xxxxxxxxxxxxxxxxxxxx> wrote:
> In perl I have now:
>
> $root = $volume;
> while (`btrfs subvolume show "$root" 2>/dev/null` !~ /toplevel subvolume/) {
> $root = dirname($root);
> last if $root eq '/';
> }
>
>
If you are okay with rolling your own solutions like this, take a look at
"btrfs filesystem usage <path>". It will print the blockdevice used for
mounting the base FS. From that you can find the mountpoint via /proc/mounts.
Performance-wise it seems to work instantly on an almost full 2TB FS.
--
With respect,
Roman
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
