linux-kernel - Re: Sysfs and suicidal attributes

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Date:	Tue, 10 Jul 2007 18:13:43 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Cornelia Huck <cornelia.huck@...ibm.com>
CC:	Alan Stern <stern@...land.harvard.edu>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: Sysfs and suicidal attributes

Cornelia Huck wrote:
> On Tue, 10 Jul 2007 17:49:37 +0900,
> Tejun Heo <htejun@...il.com> wrote:
> 
>> What I was trying to say was that suicide and murder could be done the
>> same way from the driver's POV or am I misunderstanding?
> 
> Do you mean a device unregistering itself from its attribute vs. a
> device unregistering another device from its attribute?

More like "device unregistering itself from its attribute" vs. "whatever
else".

>>> A general immediate disconnect of the buffers (which will be handled in
>>> a second pass) would be great, but doesn't sound easy.
>> I haven't thought too hard about actual implementation but it's pretty
>> specific case.  If doing things in generic manner is difficult, there
>> are plenty of shortcuts to choose from, I think.
> 
> The "second pass" approach where the store method calls the sysfs core
> or sets a flag or whatever sounds doable, but I'm not sure how general
> we can get. Maybe for all store methods that just trigger an action.

Hmm... I'll give it a shot in a few days.

-- 
tejun
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