newbie fodder

newbie fodder

[Andries.Brouwer]

For a beginner I recently wrote a tiny demonstration
of what the kernel does, given a trivial user program.
Now that it served its purpose it would be a pity to
throw it out again, maybe it can be useful to someone else.

See
	http://www.win.tue.nl/~aeb/linux/vfs/trail-1.html

Andries

Re: newbie fodder

[Eli Carter]

Andries.Brouwer@cwi.nl wrote:
> 
> For a beginner I recently wrote a tiny demonstration
> of what the kernel does, given a trivial user program.
> Now that it served its purpose it would be a pity to
> throw it out again, maybe it can be useful to someone else.
> 
> See
>         http://www.win.tue.nl/~aeb/linux/vfs/trail-1.html

Cool.
Post this to kernelnewbies: kernelnewbies@nl.linux.org

Eli
-----------------------.           Rule of Accuracy: When working toward
Eli Carter             |            the solution of a problem, it always 
eli.carter(at)inet.com `------------------ helps if you know the answer.

Re: newbie fodder

[Robert Read]

This looks great, in fact I was working on something similar for
myself.  Unfortunately, like all good documentation, it's already
slightly out of date.  Just this morning I noticed that as of the
2.4.2-preX, the __make_request function no longer contains this code:

       if (!q->plugged)
               q->request_fn(q);

I don't know why the change was made, and I have not yet found where
how q->request_fn gets called for non-plugged request queues, but
since this is one of the key steps of the whole process, it will be
great to keep this documentation current.

robert

On Wed, Feb 21, 2001 at 11:23:51PM +0100, Andries.Brouwer@cwi.nl wrote:
> For a beginner I recently wrote a tiny demonstration
> of what the kernel does, given a trivial user program.
> Now that it served its purpose it would be a pity to
> throw it out again, maybe it can be useful to someone else.
> 
> See
> 	http://www.win.tue.nl/~aeb/linux/vfs/trail-1.html
> 
> Andries
> 
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