GEOM class idea...

[Poul-Henning Kamp]

In message <20040614220931.GR10016 at spiff.melthusia.org>, Gordon Tetlow writes:

>> Many of us read CD's into iso images, stick them on a harddisk and
>> mount them from there when we need to access them.  This usually
>> costs us a md(4) vnode gadget, and that is really a waste.
>
>=2E.. description of grotty geom class ...
>
>I can't imagine that all the pain that you are talking about is a
>worthwhile effort when it's so easy to do a md backed file. I can
>just about guarentee that users will have spare files and capacity
>before they have a spare disk running around.
>
>Maybe I'm missing something here, but what is the advantage of
>going straight off of the disk? Are you trying to avoid the FFS
>filesystem overhead?

You would save both the md and ffs overhead and gain about 10% disk
capacity in the process.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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