Dear devs, after my root partiton was full, i deleted the last monthly snapshots. however, no memory was freed. so far rebalancing helped:
btrfs balance start -v -musage=0 / btrfs balance start -v -dusage=0 / i have deleted all snapshots, but no memory is being freed this time. du -hcsx / 16G / 16G total btrfs-progs v5.10.1 Linux arch-server 5.10.21-1-lts #1 SMP Sun, 07 Mar 2021 11:56:15 +0000 x86_64 GNU/Linux btrfs fi show / Label: none uuid: 3d242677-6a15-4ce7-853a-5c82f0427769 Total devices 1 FS bytes used 37.24GiB devid 1 size 39.95GiB used 39.95GiB path /dev/mapper/root btrfs fi df / Data, single: total=36.45GiB, used=35.86GiB System, DUP: total=32.00MiB, used=16.00KiB Metadata, DUP: total=1.72GiB, used=1.38GiB GlobalReserve, single: total=215.94MiB, used=0.00B any ideas how to solve this without recreating filesystem? thx!