Date: Wed, 5 Oct 2005 10:57:36 -0400
To: "linux-os (Dick Johnson)" <linux-os@analogic.com>
Cc: Marc Perkel <marc@perkel.com>, Nix <nix@esperi.org.uk>, 7eggert@gmx.de,
       Luke Kenneth Casson Leighton <lkcl@lkcl.net>,
       linux-kernel@vger.kernel.org
Subject: Re: what's next for the linux kernel?
Message-ID: <20051005145736.GB7949@csclub.uwaterloo.ca>
References: <4TiWy-4HQ-3@gated-at.bofh.it> <4U0XH-3Gp-39@gated-at.bofh.it> <E1EMutG-0001Hd-7U@be1.lrz> <87k6gsjalu.fsf@amaterasu.srvr.nix> <4343E611.1000901@perkel.com> <20051005144441.GC8011@csclub.uwaterloo.ca> <Pine.LNX.4.61.0510051048090.5182@chaos.analogic.com>
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From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
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On Wed, Oct 05, 2005 at 10:52:59AM -0400, linux-os (Dick Johnson) wrote:
> Also it has nothing at all to do with the kernel. It's what `ls`
> or some other directory-reading program provides for the user.
> People often forget that PATH, `pwd`, etc., are just filter
> components!
> 
> When you `cd` to somewhere, your location hasn't changed at
> all!

So what does bash do that makes the new location 'busy' when you cd to
it such that you can't unmount it?

> Without involving the kernel, one can make any kind of filter
> to cause any sort of display that you want.

An it certainly is something that should be done in user space.

Len Sorensen
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