Re: silent semantic changes with reiser4

[viro]

On Sun, Aug 29, 2004 at 07:36:29PM +0100, viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote:
> > he wants without recompiling to do it.  This kind of a view requires no 
> > coding because you can just mount the root filesystem two ways, one with 
> > the -nopseudos mount option, and one without it.
> 
> *What*?
> 
> OK, now I want detailed explanation of the reasons why that doesn't create
> cache coherency problems.
> 
> Do you have an analysis of locking in the entire thing?

And I am very, very serious about that - we are talking about very nasty
minefield and design choices in that area have fundamental impact on the
entire layer, wherever it is located.

It's *NOT* something that you can leave until later and hope it somehow
falls into place - it can be merged in steps, but you MUST know the goal
on that level.  To rearchitect later might be possible (even though you
will a hell of a time avoiding plugins breakage), but it will be *hard*.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/