
%         State of Art : Where we are with the Ext3    filesystem?                   
%                              Mingming Cao (cmm@us.ibm.com)                  
                                               
There has been a lot of ext3 filesystem        
development work during the past two years     
toward making ext3 an outstanding filesystem.  
In this paper, we discuss some features like   
directory indexing, block reservation and on-  
line resizing, which have been accepted in the 
mainline kernel recently. We also discuss      
those features implemented but not yet         
incorporated into the mainline kernel, such as 
extent maps, delayed allocation and multiple   
block allocation. We further include an        
overview of implementation and performance     
improvements for some of these features.       
Finally, we review some features which are     
still on the drawing board.                    
