On Wed, 07 Mar 2007 09:51:57 +0100 Miklos Szeredi <[EMAIL PROTECTED]> wrote:
> > > Dirty page accounting doesn't work either on > > > non-linear mappings > > > > It doesn't? Confused - these things don't have anything to do with each > > other do they? > > Look in page_mkclean(). Where does it handle non-linear mappings? > OK, I'd forgotten about that. It won't break dirty memory accounting, but it'll potentially break dirty memory balancing. If we have the wrong page (due to nonlinear), page_check_address() will fail and we'll leave the pte dirty. That puts us back to the pre-2.6.17 algorithms and I guess it'll break the msync guarantees. Peter, I thought we went through the nonlinear problem ages ago and decided it was OK? - 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/
