[btrfs-progs] btrfs filesystem defragment now outputs processed filenames ?

[Lionel Bouton <lionel-subscription@bouton.name>]

Hi,

I just noticed a change in behavior for btrfs-progs (at least in 6.0-1 
on Arch Linux). It now outputs the filenames it defragments and I can't 
find a command line option to disable it.

I'm using a defragment scheduler which triggers file defragmentation 
file by file and even recently by offset and size in a file (to limit 
the IO load spikes that can happen when defragmenting large files on HDD 
and T/QLC SSD/NVME with small SLC buffers).
Currently the scheduler forwards the btrfs command's output to its own 
and it pollutes the logs with superfluous information (when 
defragmenting in 128MB chunks I get tens of log lines for multiple GB 
files).

This isn't a big problem and it is easily fixable in my scheduler but I 
was wondering if there is any plan to allow silencing it or should I 
just cleanup the ouput before forwarding it (I prefer to write any 
unexpected output in logs instead of ignoring everything) ?

Best regards,

Lionel