On Fri, Jun 08, 2007 at 09:50:17AM +0200, Carsten Otte wrote: > I see your poing with regard to layering, and I agree to it. > In order to do ioremap/iounmap at least we need a counterpart > put_xip_page thing to do iounmap in that path. Our dcss segments on > 390 did not raise that requirement: they had a permanent kernel mapping. > The quiz question to me is: why don't we establish a permanenet > mapping of the entire thing from mount() to unmount(). That eliminates > the need to do iomap/iounmap, eliminates the need to have > put_xip_page, and eliminates to care about what layer would do this. > Would work for cramfs, won't work for read+write flash filesystems.
Jared's patch currently does ioremap on mount (and no iounmap at all). That mapping needs to move from the filesystem to the device driver. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
