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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)
198 return register_new_memory(__pfn_to_section(phys_start_pfn)); 198 return register_new_memory(__pfn_to_section(phys_start_pfn));
199} 199}
200 200
201#ifdef CONFIG_SPARSEMEM_VMEMMAP
202static int __remove_section(struct zone *zone, struct mem_section *ms)
203{
204 /*
205 * XXX: Freeing memmap with vmemmap is not implement yet.
206 * This should be removed later.
207 */
208 return -EBUSY;
209}
210#else
201static int __remove_section(struct zone *zone, struct mem_section *ms) 211static int __remove_section(struct zone *zone, struct mem_section *ms)
202{ 212{
203 unsigned long flags; 213 unsigned long flags;
@@ -216,6 +226,7 @@ static int __remove_section(struct zone *zone, struct mem_section *ms)
216 pgdat_resize_unlock(pgdat, &flags); 226 pgdat_resize_unlock(pgdat, &flags);
217 return 0; 227 return 0;
218} 228}
229#endif
219 230
220/* 231/*
221 * Reasonably generic function for adding memory. It is 232 * Reasonably generic function for adding memory. It is