Re: [PATCH] make cramfs look less hostile

Jörn Engel (joern@wohnheim.fh-wedel.de)
Sun, 15 Jun 2003 19:39:26 +0200


On Sun, 15 June 2003 18:26:42 +0100, Christoph Hellwig wrote:
> On Sun, Jun 15, 2003 at 06:05:24PM +0200, Jörn Engel wrote:
> >
> > This thing has been biting me now and again. "cramfs: wrong magic\n"
> > looks like an error condition to most people and thus creates bug
> > reports. But there is no bug per se in having cramfs support in the
> > kernel and booting from a jffs2 rootfs. So instead of teaching the
> > users over and over, how about this little one-liner?
>
> Umm, cramfs_fill_super has a silent parameter that's true for
> probing the root filesystem. I'd suggest disabling the printk
> completly if it's set.

Good idea, but only at first glance. cramfs_fill_super() always gets
called with silent=1. So if "(!silent) printk(...);" is functionally
equivalent to ";".

Jörn

-- 
The competent programmer is fully aware of the strictly limited size of
his own skull; therefore he approaches the programming task in full
humility, and among other things he avoids clever tricks like the plague. 
-- Edsger W. Dijkstra
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