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-rw-r--r--mm/memory_hotplug.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index cba36ef0d506..c4ba85c8cb00 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -198,6 +198,16 @@ static int __add_section(struct zone *zone, unsigned long phys_start_pfn)
return register_new_memory(__pfn_to_section(phys_start_pfn));
}
+#ifdef CONFIG_SPARSEMEM_VMEMMAP
+static int __remove_section(struct zone *zone, struct mem_section *ms)
+{
+ /*
+ * XXX: Freeing memmap with vmemmap is not implement yet.
+ * This should be removed later.
+ */
+ return -EBUSY;
+}
+#else
static int __remove_section(struct zone *zone, struct mem_section *ms)
{
unsigned long flags;
@@ -216,6 +226,7 @@ static int __remove_section(struct zone *zone, struct mem_section *ms)
pgdat_resize_unlock(pgdat, &flags);
return 0;
}
+#endif
/*
* Reasonably generic function for adding memory. It is