On Wed, Mar 13, 2019 at 04:10:14PM +0100, Laurent Dufour wrote: > If this is not too late and if there is still place available, I would like > to attend the MM track and propose a topic about using the XArray to replace > the VMA's RB tree and list. If there isn't room on the schedule, then Laurent and I are definitely going to sneak off and talk about this ourselves at some point. Having a high-bandwidth conversation about this is going to be really important for us, and I think having other people involved would be good. If there're still spots, it'd be good to have Liam Howlett join us. He's doing the actual writing-of-code for the Maple Tree at the moment (I did some earlier on, but recent commits are all him). > Using the XArray in place of the VMA's tree and list seems to be a first > step to the long way of removing/replacing the mmap_sem. > However, there are still corner cases to address like the VMA splitting and > merging which may raise some issue. Using the XArray's specifying locking > would not be enough to handle the memory management, and additional fine > grain locking like a per VMA one could be studied, leading to further > discussion about the merging of the VMA. > > In addition, here are some topics I'm interested in: > - Test cases to choose for demonstrating mm features or fixing mm bugs > proposed by Balbir Singh > - mm documentation proposed by Mike Rapoport > > Laurent. >
