linux-kernel - Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted

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Date:	Tue, 12 Dec 2006 11:33:58 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Al Viro <viro@....linux.org.uk>, Andrew Morton <akpm@...l.org>,
	Andrew MChuck Ebbert <76306.1226@...puserve.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted


> So it makes perfect sense to say
> 
>    "you won't be getting any notification by anything built-in, until 
>     'device_initcall' (which is the default module_init, of course)".
> 
> which in the case of certain drivers obviously _does_ mean that they had 
> better not try to use any early initcalls to load firmware.

And that will fix some other issues I think I've seen (a while ago, I
might have a memory mixup here) related to /sbin/hotplug being called
before /dev/null & /dev/zero are initialized (they are fs_initcall). At
least with that patch, it won't happen.

Ben.


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