what's relationship between VFS inode and ext3_inode?
in kernel space ,if i get the i_ino(inode mumber ) of a file, and next how could i get the block number of this file? in VFS layer the inode struct haven't i_block array to point to the blocks. but in ext3_inode struct, it has. what's the relationship between the VFS inode and ext3_inode?