Inodes

• We're going to look at this in detail because it's so interesting:

 struct inode {
 ...
 struct list_head i_dirty_buffers;

• This is the file's buffer cache

  • When you fsync a file, i_dirty_buffers is the list of buffers that are flushed

 unsigned long i_ino;

• This is the i-number for the inode---it's not stored on the disk, of course

 umode_t i_mode;

• This contains the permissions and the file type (symlink, directory, etc.)

 nlink_t i_nlink;

• This is the link count