On Fri, Sep 06, 2019 at 06:02:35PM +0800, Jason Wang wrote: > > On 2019/9/5 下午9:59, Jason Gunthorpe wrote: > > On Thu, Sep 05, 2019 at 08:27:34PM +0800, Jason Wang wrote: > > > Hi: > > > > > > Per request from Michael and Jason, the metadata accelreation is > > > reverted in this version and rework in next version. > > > > > > Please review. > > > > > > Thanks > > > > > > Jason Wang (2): > > > Revert "vhost: access vq metadata through kernel virtual address" > > > vhost: re-introducing metadata acceleration through kernel virtual > > > address > > There are a bunch of patches in the queue already that will help > > vhost, and I a working on one for next cycle that will help alot more > > too. > > > I will check those patches, but if you can give me some pointers or keywords > it would be much appreciated. You can look here: https://github.com/jgunthorpe/linux/commits/mmu_notifier The first parts, the get/put are in the hmm tree, and the last part, the interval tree in the last commit is still a WIP, but it would remove alot of that code from vhost as well. Jason