Messages in this thread | | | Date | Thu, 27 Sep 2018 13:20:41 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH v5 4/4] mm: Defer ZONE_DEVICE page initialization to the point where we init pgmap |
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On Wed 26-09-18 11:52:56, Dan Williams wrote: [...] > Could we push the hotplug lock deeper to the places that actually need > it? What I found with my initial investigation is that we don't even > need the hotplug lock for the vmemmap initialization with this patch > [1].
Yes, the scope of the hotplug lock should be evaluated and _documented_. Then we can build on top. -- Michal Hocko SUSE Labs
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