DragonFly kernel List (threaded) for 2003-09
Re: geom, devfs
Ted Unangst wrote:
On Fri, 12 Sep 2003, ibotty wrote:
do you/we plan to port geom (or a similar) framework to DragonFly?
i came across this, when i thought about geom-gate, which looks very
i'm currently implementing a "userland disk" for openbsd (inspired by
pawel's talk) which should be able to communicate with geom gate. the
idea is basically the same, an ioctl interface passes read/write requests
to a userland daemon. depending on the daemon attached, it could show up
as a networked device, or ccd, or something else entirely, maybe even
a gbde replacement.
- cgd(4) driver
NetBSD had something interesting regarding disks; it isn't
anything at the scale of GEOM:
Anyways, I have not looked at GEOM a lot, but once when it was
all fucking up with the md(4) driver, because of a fault in the
swapoff functionality in FreeBSD.
From my point of view, what GEOM is doing, i.e. hierarching
disk devices, should be done for the actual device framework;
this way, things like GEOM can be easily made part of it. It
would allow us to put layers on top of each other.
The Fluke dev. framework has some nice ideas which we might want