Re: [PATCH] close windows on unmount

[Alexander Larsson <alexl redhat com>]

On Tue, 2004-03-16 at 06:52, Ryan McDougall wrote:
> 
> I can't speak about how this are done (since my Unix skills are still
> developing), but I can prattle on about how they should work. ;)
> 
> Frankly, if automount can't express transient data storage adequately
> with traditional Unix semantics, then it deserves to go the way of the
> Dodo. With USB keys, cameras, etc. becoming very common, in addition to
> the networked file systems we've had for a while, one needs a more
> flexible way of handling such devices. Thus we have sysfs, HAL, dbus,
> etc coming down the pipe; which is probably the long term solution.
> 
> As for what *I* would decide if it was *me* making the decision and
> can't wait for more sophistication at the kernel level: Assume every
> volume is transient -- the ground beneath you is always moving. 
> 
> Nautilus should always remain open, but should never prevent unmounts.
> If a FS is unmounted underneath an open window, the window should be
> shaded grayish to notify the user something is wrong. If the user clicks
> on an object of the FS, Nautilus states that its has lost the
> "connection" to the FS, and offers to re-mount it. If it fails to re-
> mount the FS, say because the user doesn't have permission to mount that
> volume, *then* Nautilus finally closes the window.
> 
> What do you think? Does it cover all cases? It shouldn't prevent
> floppies from unmounting, it should allow automount to work properly,
> and its fairly general to any transient FS.

It might be a good idea, but if we want to get file change notification,
there just *isn't* a way to not prevent unmount. Dnotify requires you to
keep the directory fd open, and this prevents unmount. Nothing we can do
about it.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 Alexander Larsson                                            Red Hat, Inc 
                   alexl redhat com    alla lysator liu se 
He's a bookish gay astronaut with a passion for fast cars. She's a 
high-kicking impetuous widow who hides her beauty behind a pair of 
thick-framed spectacles. They fight crime!