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-rw-r--r--mm/memory_hotplug.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d5094929766d..c8b3ca79de2d 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -219,6 +219,25 @@ static void grow_pgdat_span(struct pglist_data *pgdat,
pgdat->node_start_pfn;
}
+void online_page(struct page *page)
+{
+ totalram_pages++;
+ num_physpages++;
+
+#ifdef CONFIG_HIGHMEM
+ if (PageHighMem(page))
+ totalhigh_pages++;
+#endif
+
+#ifdef CONFIG_FLATMEM
+ max_mapnr = max(page_to_pfn(page), max_mapnr);
+#endif
+
+ ClearPageReserved(page);
+ init_page_count(page);
+ __free_page(page);
+}
+
static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages,
void *arg)
{