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-rw-r--r--mm/memory_hotplug.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 988bd91b9f7f..656ad1c65422 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -404,8 +404,15 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
if (!populated_zone(zone))
need_zonelists_rebuild = 1;
- walk_memory_resource(pfn, nr_pages, &onlined_pages,
+ ret = walk_memory_resource(pfn, nr_pages, &onlined_pages,
online_pages_range);
+ if (ret) {
+ printk(KERN_DEBUG "online_pages %lx at %lx failed\n",
+ nr_pages, pfn);
+ memory_notify(MEM_CANCEL_ONLINE, &arg);
+ return ret;
+ }
+
zone->present_pages += onlined_pages;
zone->zone_pgdat->node_present_pages += onlined_pages;