VFS buffer monitoring

["Vladimir Dergachev" <vladimid@seas.upenn.edu>]

   Hello all :)
    I want to write a program that lists the blocks currently in VFS buffer.
 I looked around and couldn't find anything similar, and, well, noone on IRC
 seems to know anything about it.
    So here goes :
      1) does anybody know of such a program ? 
      2) I looked around in the kernel source and it looks to me that 
         this stuff isn't visible outside of kernel.. So should I just go
         and change kernel directly or can I still get by with writing a 
         module ? (or maybe even better , just an ordinary program ? )
      
      
 I would appreciate very much any pointers (and especially commentary) on the 
 subject..
 
                        Vladimir Dergachev
 
                        http://www.math.upenn.edu/~vdergach
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