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

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Date:	Mon, 11 Dec 2006 21:17:42 -0500
From:	Dominik Brodowski <linux@...inikbrodowski.net>
To:	Andrew Morton <akpm@...l.org>
Cc:	Linus Torvalds <torvalds@...l.org>,
	Al Viro <viro@....linux.org.uk>,
	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

On Mon, Dec 11, 2006 at 06:08:22PM -0800, Andrew Morton wrote:
> > diff --git a/include/linux/init.h b/include/linux/init.h
> > index 5eb5d24..5a593a1 100644
> > --- a/include/linux/init.h
> > +++ b/include/linux/init.h
> > @@ -111,6 +111,7 @@ extern void setup_arch(char **);
> >  #define subsys_initcall_sync(fn)	__define_initcall("4s",fn,4s)
> >  #define fs_initcall(fn)			__define_initcall("5",fn,5)
> >  #define fs_initcall_sync(fn)		__define_initcall("5s",fn,5s)
> > +#define rootfs_initcall(fn)		__define_initcall("rootfs",fn,rootfs)
> >  #define device_initcall(fn)		__define_initcall("6",fn,6)
> >  #define device_initcall_sync(fn)	__define_initcall("6s",fn,6s)
> >  #define late_initcall(fn)		__define_initcall("7",fn,7)
> 
> Looks like this might break pcmcia which for some reason does firmware
> requesting at fs_initcall level (drivers/pcmcia/ds.c).

That codepath is not triggered before device_initcall()s occur. So it's a
non-issue for PCMCIA.

Thanks,
	Dominik
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