cancel resize

[Oliver <oliver111333777@xxxxxxxxx>]

Hello,

I've made a stupid mistake. I wanted to reduce a disk with 1990m, but 
instead resized it to 1990m.

btrfs fi resize 2:1990m /btrfs

It will take forever and might fail in the end, as I might not have 
enough space avaiable.

How do I cancel this operation ? I can see cancel operations for other 
commands, but not this one.

thanks,
Oliver