On Tue, 2008-01-15 at 13:44 +0100, Andrea Arcangeli wrote: > On Mon, Jan 14, 2008 at 12:02:42PM -0800, Christoph Lameter wrote: > > Hmmm... In most of the callsites we hold a writelock on mmap_sem right? > > Not in all, like Marcelo pointed out in kvm-devel, so the lowlevel > locking can't relay on the VM locks. > > About your request to schedule in the mmu notifier methods this is not > feasible right now, the notifier is often called with the pte > spinlocks held. I wonder if you can simply post/queue an event like a > softirq/pdflush.
Do you have cases where it's -not- called with the PTE lock held ? Ben. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
