vfs whitebox test

[Pat LaVarre <p.lavarre@ieee.org>]

Anybody already pull together some more closely interactive way of
trying creative patterns of calls thru the vfs layer?

I ask because I'm still hung up on my demo that udf.ko can't reliably
write more than one file at a time:

http://marc.theaimsgroup.com/?l=linux-fsdevel&m=106676214111422

List: linux-fsdevel
Subject: Re: zeroes read back more often than appended
Date: 2003-10-21 18:44:54

I'm guessing what makes that demo tough to analyse is that I wrote it up
at the high level of fopen/ fwrite/ fclose/ hexdump.  I'm guessing
translating that demo down to the more verbose level of open/ write/
read/ close actually won't make the demo significantly easier to
analyse.  I'm thinking I have to drop down to the vfs level.

Can I somehow drop down to the vfs level?

Maybe I could run the fs as a .so?

Can I help in any way quicker than deciphering the source of udf.ko?

Pat LaVarre