Messages in this thread | | | Date | Sat, 11 Feb 2006 13:15:17 +0900 | From | Yasunori Goto <> | Subject | Re: [Lhms-devel] [RFC/PATCH: 002/010] Memory hotplug for new nodes with pgdat allocation. (Wait table and zonelists initalization) |
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> On Fri, 2006-02-10 at 23:20 +0900, Yasunori Goto wrote: > > > > static __meminit > > void zone_wait_table_init(struct zone *zone, unsigned long > > zone_size_pages) > > { > > - int i; > > + int i, hotadd = (system_state == SYSTEM_RUNNING); > > struct pglist_data *pgdat = zone->zone_pgdat; > > + unsigned long allocsize; > > > > /* > > * The per-page waitqueue mechanism uses hashed waitqueues > > * per zone. > > */ > > + if (hotadd && (zone_size_pages == PAGES_PER_SECTION)) > > + zone_size_pages = PAGES_PER_SECTION << 2; > > I don't think I understand this calculation. You online only 4 sections > worth of pages?
Ummmmm. I realized that I've forgotten many things about this patch due to long time keeping in storage. At least here looks strange indeed. I need shake my brain to recall it. :-(
-- Yasunori Goto
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