On Wed, 2007-03-07 at 11:21 +0100, Nick Piggin wrote: > On Wed, Mar 07, 2007 at 11:13:20AM +0100, Miklos Szeredi wrote: > > > *sigh* yes was looking at all that code, thats gonna be darn slow > > > though, but I'll whip up a patch. > > > > Well, if it's going to be darn slow, maybe it's better to go with > > mingo's plan on emulating nonlinear vmas with linear ones. That'll be > > There are real users who want these fast, though.
Yeah, why don't we have a tree per nonlinear vma to find these pages? wli mentions shadow page tables.. > > darn slow as well, but at least it will be much less complicated. > > IMO, the best thing to do is just restore msync behaviour, and comment > the fact that we ignore nonlinears. We need to restore msync behaviour > to fix races in regular mappings anyway, at least for now. Seems to be the best quick solution indeed. - 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/
