diff options
| -rw-r--r-- | mm/memory_hotplug.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index df570e5c71cc..07e5c67f48a8 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -447,6 +447,14 @@ static void update_pgdat_span(struct pglist_data *pgdat) zone->spanned_pages; /* No need to lock the zones, they can't change. */ + if (!zone->spanned_pages) + continue; + if (!node_end_pfn) { + node_start_pfn = zone->zone_start_pfn; + node_end_pfn = zone_end_pfn; + continue; + } + if (zone_end_pfn > node_end_pfn) node_end_pfn = zone_end_pfn; if (zone->zone_start_pfn < node_start_pfn) |