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-rw-r--r--arch/sh/mm/init.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index b75a7acd62fb..d4681a55c852 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -292,4 +292,21 @@ int memory_add_physaddr_to_nid(u64 addr)
292} 292}
293EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); 293EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
294#endif 294#endif
295
296#ifdef CONFIG_MEMORY_HOTREMOVE
297int remove_memory(u64 start, u64 size)
298{
299 unsigned long start_pfn = start >> PAGE_SHIFT;
300 unsigned long end_pfn = start_pfn + (size >> PAGE_SHIFT);
301 int ret;
302
303 ret = offline_pages(start_pfn, end_pfn, 120 * HZ);
304 if (unlikely(ret))
305 printk("%s: Failed, offline_pages() == %d\n", __func__, ret);
306
307 return ret;
308}
309EXPORT_SYMBOL_GPL(remove_memory);
295#endif 310#endif
311
312#endif /* CONFIG_MEMORY_HOTPLUG */