Subfile GSoC Mid-Checkpoint Status

[Adam Burkepile <sadpoti%gmail.com@localhost>]

Progress so far has been:

1. Rethought some design decisions

2. Created some needed flags in the superblock and inode

3. Modified newfs and dumpfs to modify/read the flag in the superblock  
to recognize whether a file system has subfile support

4. Created a new system call ( subfile_open ) stub and I am using that  
stub to build into the system call


So, as of right now I have been working on the system call, which  
should be the "meat" of the project. I am making good progress, right  
now just figuring out ways to pass data back and forth from the the  
inode, the vode, and the system call. For the second half  of the  
project, I will, for the most part, continue to work on the system  
call and once I get it done, use it as a template for the other system  
call, subfile_fopen, since they are almost exactly the same.

The biggest problem that I have run into have been just timing problem  
as our school is on the quarter system so I wasn't able to start for  
~3-4 weeks into the coding period. I was a little worried about making  
the checkpoint as I started to code but I am personally satisfied with  
the progress that I was able to make in the remaining time. Timelines  
had to be shifted but I believe that I am now still on track to finish  
by the end.

I another (kinda) problem that I had was that it had been a long time  
since I had really dug around the NetBSD source code so it has taken  
me a bit to refamiliarize myself with it. Not a big problem, but  
something that slowed me down a bit.



Adam Burkepile