Internals of ext2fs

Virtual File Systems

To mount:
1. Look up the file system type in the list
2. Find the method table for this file system type
3. Invoke the read_super method for this file system type
Actually the method tables in file_system_type list have only this one method!
- That's because you can't do anything else until you've loaded the superblock anyway
Once the superblock is read in, you can do more stuff:

      struct super_block {
        ...
        struct super_operations *s_op;
        ...
      }