[ 4745.905253] BTRFS info (device dm-0): first mount of filesystem 49e5c02c-f03e-45e8-8315-190771eab85e [ 4745.905270] BTRFS info (device dm-0): using crc32c checksum algorithm [ 4746.171437] BTRFS info (device dm-0): enabling ssd optimizations [ 4746.171454] BTRFS info (device dm-0): turning on async discard [ 4746.171462] BTRFS info (device dm-0): enabling free space tree [ 4746.171468] BTRFS info (device dm-0): max_inline set to 0 [ 4909.138462] BTRFS info (device dm-0): last unmount of filesystem 49e5c02c-f03e-45e8-8315-190771eab85e