On Fri 26-07-19 10:36:42, David Hildenbrand wrote: > On 26.07.19 10:31, Michal Hocko wrote: [...] > > Anyway, my dislike of the device_hotplug_lock persists. I would really > > love to see it go rather than grow even more to the hotplug code. We > > should be really striving for mem hotplug internal and ideally range > > defined locking longterm. > > Yes, and that is a different story, because it will require major > changes to all add_memory() users. (esp, due to the documented race > conditions). Having that said, memory hotplug locking is not ideal yet. I am really happy to hear that we are on the same page here. Do we have any document (I am sorry but I am lacking behind recent development in this area) that describes roadblocks to remove device_hotplug_lock? -- Michal Hocko SUSE Labs
