Re: [PATCH v9 03/12] mm/hotplug: Prepare shrink_{zone, pgdat}_span for sub-section removal

On Mon, Jun 17, 2019 at 6:42 PM Wei Yang wrote: > > On Wed, Jun 05, 2019 at 02:58:04PM -0700, Dan Williams wrote: > >Sub-section hotplug support reduces the unit of operation of hotplug > >from section-sized-units (PAGES_PER_SECTION) to sub-section-sized units > >(PAGES_PER_SUBSECTION). Teach

Re: [PATCH v9 03/12] mm/hotplug: Prepare shrink_{zone, pgdat}_span for sub-section removal

On Wed, Jun 05, 2019 at 02:58:04PM -0700, Dan Williams wrote: >Sub-section hotplug support reduces the unit of operation of hotplug >from section-sized-units (PAGES_PER_SECTION) to sub-section-sized units >(PAGES_PER_SUBSECTION). Teach shrink_{zone,pgdat}_span() to consider >PAGES_PER_SUBSECTION

[PATCH v9 03/12] mm/hotplug: Prepare shrink_{zone, pgdat}_span for sub-section removal

Sub-section hotplug support reduces the unit of operation of hotplug from section-sized-units (PAGES_PER_SECTION) to sub-section-sized units (PAGES_PER_SUBSECTION). Teach shrink_{zone,pgdat}_span() to consider PAGES_PER_SUBSECTION boundaries as the points where pfn_valid(), not valid_section(),