Re: RFC: du reports a 1.2PB file on a 1TB btrfs disk

[Kaz Kylheku (Coreutils)]

On 2020-03-10 11:52, Jim Meyering wrote:
Otherwise, du provides no way of seeing how much of the actual disk
space is being used by such FS-compressed files.

If you stat the file, what are the values of st_size, st_blksize and 
st_blocks?