From: Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>
To: linux-hotplug@vger.kernel.org
Subject: Re: definition of terms (was: Re: Adding PCMCIA support to the kernel tree -- developers needed.)
Date: Sat, 10 Feb 2001 10:30:55 +0000 [thread overview]
Message-ID: <marc-linux-hotplug-98180101922463@msgid-missing> (raw)
In-Reply-To: <marc-linux-hotplug-98173830701779@msgid-missing>
On Freitag, 9. Februar 2001 18:30, David Hinds wrote:
> I think this discussion is trying to create a very difficult problem
> out of something that really is not that hard to handle in practice.
Certainly if there is a need for locking, a simple common lock would solve it.
But it seems that we cannot agree whether locking is needed at all.
> Say you insert one hot plug device then in the next microsecond swap
> it out and swap in another device of the same type but that you want
> to configure differently. Is this really a scenario that deserves
> serious discussion? I would simply require serialization of hot plug
If you use physical removal as an example probably not.
If you take into account that there are hotpluggable busses with
many hosts any of which can reset the bus, it deserves consideration.
Think of joining two segments of such a bus resulting in some error
causing some host to reset the bus.
> agent actions and then it seems to me that 90% of the theoretical
> problem (and 99.999% of the real problem) goes away. If you try to
This I would consider a simple and robust solution.
Regards
Oliver
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prev parent reply other threads:[~2001-02-10 10:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-09 17:03 definition of terms (was: Re: Adding PCMCIA support to the kernel tree -- developers needed.) Oliver Neukum
2001-02-09 17:30 ` David Hinds
2001-02-09 18:53 ` Vojtech Pavlik
2001-02-10 10:30 ` Oliver Neukum [this message]
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