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-rw-r--r--mm/memory_hotplug.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 527c51084bb8..a66d0023d219 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1492,6 +1492,7 @@ static int __ref __offline_pages(unsigned long start_pfn,
unsigned long pfn, nr_pages, expire;
long offlined_pages;
int ret, drain, retry_max, node;
+ unsigned long flags;
struct zone *zone;
struct memory_notify arg;
@@ -1585,7 +1586,11 @@ repeat:
/* removal success */
zone->managed_pages -= offlined_pages;
zone->present_pages -= offlined_pages;
+
+ pgdat_resize_lock(zone->zone_pgdat, &flags);
zone->zone_pgdat->node_present_pages -= offlined_pages;
+ pgdat_resize_unlock(zone->zone_pgdat, &flags);
+
totalram_pages -= offlined_pages;
init_per_zone_wmark_min();