6.6.3: wrong return code for when trying to create a duplicate subvolume

[vojtechtrefny]

When trying to create a new subvolume which already exists, btrfs subvolume create has return code 0 with 6.6.3:

# btrfs subvolume create /mnt/test/a
Create subvolume '/mnt/test/a'
# btrfs subvolume create /mnt/test/a
ERROR: target path already exists: /mnt/test/a
# echo $?
0
# btrfs --version
btrfs-progs v6.6.3

Works as expected with 6.6.2:

# btrfs subvolume create /mnt/test/a
ERROR: target path already exists: /mnt/test/a
# echo $?
1
# btrfs --version
btrfs-progs v6.6.2

[mbiebl]

I can confirm that the referenced commit fixes the libblockdev test suite failure.

[kdave]

Thanks, will be released in 6.7.