linux-kernel - Re: [PATCH 1/4] module: implement module_inhibit

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Message-Id: <1190763704.2227.24.camel@localhost.localdomain>
Date:	Wed, 26 Sep 2007 09:41:44 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Tejun Heo <htejun@...il.com>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Jonathan Corbet <corbet@....net>, ebiederm@...ssion.com,
	cornelia.huck@...ibm.com, greg@...ah.com, kay.sievers@...y.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] module: implement module_inhibit_unload()

On Wed, 2007-09-26 at 08:15 +0900, Tejun Heo wrote:
> I have no problem with changing the condition check to loop but it would
> be great if someone can point me to a code where this unexpected wake up
> is used.

This is one of those areas where we're conservative.  Historically there
have been random wakes, and noone is quite sure that signal code or the
freezer or whatever won't do it under some circumstances.

Thus it's always seen as better to wait on a specific condition.

Cheers,
Rusty.

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