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;
 ...
 }