Kernel modules that want to control how/when memory is onlined/offlined
need these functions.
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/memory_hotplug.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index ac14ea772792..3c374d308cf4 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -979,6 +979,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
memory_notify(MEM_CANCEL_ONLINE, &arg);
return ret;
}
+EXPORT_SYMBOL(online_pages);
#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
static void reset_node_present_pages(pg_data_t *pgdat)
@@ -1296,6 +1297,7 @@ bool is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)
/* All pageblocks in the memory block are likely to be hot-removable */
return true;
}
+EXPORT_SYMBOL(is_mem_section_removable);
/*
* Confirm all pages in a range [start, end) belong to the same zone.
@@ -1752,6 +1754,7 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages)
{
return __offline_pages(start_pfn, start_pfn + nr_pages);
}
+EXPORT_SYMBOL(offline_pages);
#endif /* CONFIG_MEMORY_HOTREMOVE */
/**
@@ -1802,6 +1805,7 @@ int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn,
return 0;
}
+EXPORT_SYMBOL(walk_memory_range);
#ifdef CONFIG_MEMORY_HOTREMOVE
static int check_memblock_offlined_cb(struct memory_block *mem, void *arg)
--
2.14.3
