No, it seems to be a very good goal, actually. I've had reports of this
approach getting close to exact the behaviour we want: we don't actually
want exactly 128kB free, we want something like 5-10% of memory free just
in case...
I've also got a patch that maxes out at 25% free, just in case, to avoid
the really bad (but unlikely) cases.
> What's the real need of contiguous memory?
DMA.
> Modules that need large physically contiguous memory chunks should be
> loaded very early after system start-up.
Not necessarily. Think video capture etc, that definitely wants memory
only when it is needed, but that we don't want to allocate memory for all
the time (it can need quite a bit of memory)
Linus
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