On Thu, Feb 28, 2008 at 05:03:01PM -0800, Christoph Lameter wrote: > I thought you wanted to get rid of the sync via pte lock?
Sure. _notify is happening inside the pt lock by coincidence, to reduce the changes to mm/* as long as the mmu notifiers aren't sleep capable. > What changes to do_wp_page do you envision? Converting it to invalidate_range_begin/end. > What is the trouble with the current do_wp_page modifications? There is > no need for invalidate_page() there so far. invalidate_range() does the > trick there. No trouble, it's just that I didn't want to mangle over the logic of do_wp_page unless it was strictly required, the patch has to be obviously safe. You need to keep that bit of your patch to make the mmu notifiers sleepable. ------------------------------------------------------------------------- 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
