[Sorry for late response] On Fri 12-10-18 10:15:26, Zaslonko Mikhail wrote: > Hello Michal, > > I've read a recent discussion about introducing the memory types for memory > hotplug: > https://marc.info/?t=153814716600004&r=1&w=2 > > In particular I was interested in the idea of moving vmem struct pages to > the hotplugable memory itself. I'm also looking into it for s390 right now. > So, in one of your replies you mentioned that you "have proposed (but > haven't finished this due to other stuff) a solution for this". Have you > covered any part of that solution yet? Could you please point me to any > relevant discussions on this matter? the patchset has been posted here [1]. I didn't get around to fix the hotremove case when you have to be extra carefule to not remove pfn range that backs struct pages still in use. I didn't have problems for small systems but 2GB memblocks just crashed. [1] http://lkml.kernel.org/r/20170801124111.28881-1-mhocko@xxxxxxxxxx -- Michal Hocko SUSE Labs
