gistfile1.txt

[root@jolla nemo]# btrfs check --repair  /dev/mmcblk1
enabling repair mode
Checking filesystem on /dev/mmcblk1
UUID: 69e965d1-41fd-449e-831a-669c365e533f
checking extents
checking free space cache
cache and super generation don't match, space cache will be invalidated
checking fs roots
checking csums
checking root refs
found 2193643070 bytes used err is 0
total csum bytes: 5468968
total tree bytes: 8617984
total fs tree bytes: 1433600
total extent tree bytes: 516096
btree space waste bytes: 1387534
file data blocks allocated: 5605593088
 referenced 5599182848
Btrfs v3.16