Btrfs for mere mortals: inode allocation
It’s known that btrfs behaves differently from other Linux filesystems. There are some fascinating aspects of how btrfs manages its internal structures and how common tools are not prepared to handle it. This goal of this post is to demystify why ext4 can report the number of available inodes while btrfs always reports 0: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 $ file ext4....