BTRFS Swapfile in Ubuntu

sudo swapon --show
sudo truncate -s 0 swapfile
sudo chattr +C swapfile
sudo fallocate -l 32G /swapfile
sudo chmod 600 swapfile
sudo mkswap swapfile
sudo swapon swapfile

edit fstab with nano

sudo nano /etc/fasab
/swapfile none swap defaults 0 0