[PATCH 03/24] XXX: memory_hotplug locking note in online_pages.

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Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>
---
 mm/memory_hotplug.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b81a367b..102c06a 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -984,6 +984,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
 
 	zone->managed_pages += onlined_pages;
 	zone->present_pages += onlined_pages;
+	/* FIXME: should be protected by pgdat_resize_lock() */
 	zone->zone_pgdat->node_present_pages += onlined_pages;
 	if (onlined_pages) {
 		node_states_set_node(zone_to_nid(zone), &arg);
-- 
1.8.1.1

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