From: David Brownell <david-b@pacbell.net>
To: linux-hotplug@vger.kernel.org
Subject: Re: How to hot unplug?
Date: Tue, 09 Jul 2002 14:50:04 +0000 [thread overview]
Message-ID: <marc-linux-hotplug-102622610122154@msgid-missing> (raw)
In-Reply-To: <marc-linux-hotplug-102622053714961@msgid-missing>
ming deng wrote:
> When a USB device is detached, I want to do something to clear up, like
> unmount the directory for USB Mass Storage devices. Is there any
> function in hotplug supporting that?
You get a notification that the device was removed,
but so far nothing uses it. Feel free to develop
appropriate patches. In the case of unmounting,
I'd look at the issues for mounting devices first.
(My expectation is that the 2.5 driverfs and disk
model unification work will make that workable.)
One thing that folk have wanted to do is unload
drivers that are no longer needed. Although there's
a lot of email on linux-kernel about module unload
races, the real reason that's not done is that the
kernel doesn't track which drivers are needed: only
which are in curreng use. Having userspace guess
such stuff is error prone at best.
- Dave
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next prev parent reply other threads:[~2002-07-09 14:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-09 13:14 How to hot unplug? ming deng
2002-07-09 14:50 ` David Brownell [this message]
2002-07-09 15:07 ` ming deng
2002-07-09 17:29 ` Stephen Williams
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