QA output created by 279
Create subvolume 'SCRATCH_MNT/subv1'
Create subvolume 'SCRATCH_MNT/subv2'

Testing with same subvolume and without transaction commit

wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Fiemap of SCRATCH_MNT/subv1/f1 before deleting SCRATCH_MNT/subv1/f2:
0: [0..127]: shared|last
Fiemap of SCRATCH_MNT/subv1/f1 after deleting SCRATCH_MNT/subv1/f2:
0: [0..127]: last

Testing with same subvolume and with transaction commit

wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Fiemap of SCRATCH_MNT/subv1/f3 before deleting SCRATCH_MNT/subv1/f4:
0: [0..127]: shared|last
Fiemap of SCRATCH_MNT/subv1/f3 after deleting SCRATCH_MNT/subv1/f4:
0: [0..127]: last

Testing with different subvolumes and without transaction commit

wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Fiemap of SCRATCH_MNT/subv1/f5 before deleting SCRATCH_MNT/subv2/f6:
0: [0..127]: shared|last
Fiemap of SCRATCH_MNT/subv1/f5 after deleting SCRATCH_MNT/subv2/f6:
0: [0..127]: last

Testing with different subvolumes and with transaction commit

wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Fiemap of SCRATCH_MNT/subv1/f7 before deleting SCRATCH_MNT/subv2/f8:
0: [0..127]: shared|last
Fiemap of SCRATCH_MNT/subv1/f7 after deleting SCRATCH_MNT/subv2/f8:
0: [0..127]: last