Usefulness is with demand-based mounting and unmounting. If a floppy is virtually mounted, then it will be unmounted
after a while. This is good because a user who leaves the system overnight may come in the morning and eject the (dumb)
floppy without remembering that it is mounted.
Now, what do you have against devfs? I think I can predict what you will say, but go ahead. Instead of complaining about
"Bad Thing" you might want to make some useful suggestions.
Ricky Beam wrote:
> On Mon, 21 Feb 2000, Tony Hoyle wrote:
> >I had the idea of the 'virtual mount'. Basically you mount with -o virtual, and the vfs records
> >the mount details, then returns immediately. When the first non-stat operation is done on the mount
> >point, the mount actually happens.
>
> Let me be the voice of reason here:
> Why the hell would you want to do that? <grin>
>
> How can you be sure the file system is mountable until you actually mount it?
> What's the advantage of doing something like this?
>
> >I mostly implemented it last night... however I thought I'd better put my ideas down here so I can be shot down in
> >flames (or even encouraged) for having the idea in the first place. (It turned out to be much simpler than I thought,
> >although I haven't acctually attempted the mount-from-vfs yet...)
>
> It's good kernel hacking exercise... but I'd have to rank this up there
> with devfs in stupidity (no offense.)
>
> --Ricky
>
> PS: I stand by my original (over a year old) stance that devfs is a
> "Bad Idea (tm)". It could be turned into a good idea... I'm more
> inclined to use something like solaris uses.
>
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This archive was generated by hypermail 2b29 : Wed Feb 23 2000 - 21:00:29 EST