VFS buffer monitoring

VFS buffer monitoring

[Vladimir Dergachev]

   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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Re: VFS buffer monitoring

[Stephen C. Tweedie]

Hi,

On Tue, 18 Aug 1998 11:30:59 -0400 (EDT), "Vladimir Dergachev"
<vladimid@seas.upenn.edu> said:

>       2) I looked around in the kernel source and it looks to me that 
>          this stuff isn't visible outside of kernel.. 

Yep.

>          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 ? )

You'll need to modify the kernel (linux/fs/buffer.c); the buffer lookup
information is not exported to modules.

--Stephen
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