1 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 9a805ec6e794..b788faa71563 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -19,6 +19,9 @@
 
 #define INIT_MEMBLOCK_REGIONS   128
 
+/* Definition of memblock flags. */
+#define MEMBLOCK_HOTPLUG        0x1     /* hotpluggable region */
+
 struct memblock_region {
         phys_addr_t base;
         phys_addr_t size;
@@ -60,6 +63,8 @@ int memblock_remove(phys_addr_t base, phys_addr_t size);
 int memblock_free(phys_addr_t base, phys_addr_t size);
 int memblock_reserve(phys_addr_t base, phys_addr_t size);
 void memblock_trim_memory(phys_addr_t align);
+int memblock_mark_hotplug(phys_addr_t base, phys_addr_t size);
+int memblock_clear_hotplug(phys_addr_t base, phys_addr_t size);
 
 #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
 int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
@@ -122,6 +127,18 @@ void __next_free_mem_range_rev(u64 *idx, int nid, phys_addr_t *out_start,
              i != (u64)ULLONG_MAX;                                      \
              __next_free_mem_range_rev(&i, nid, p_start, p_end, p_nid))
 
+static inline void memblock_set_region_flags(struct memblock_region *r,
+                                             unsigned long flags)
+{
+        r->flags |= flags;
+}
+
+static inline void memblock_clear_region_flags(struct memblock_region *r,
+                                               unsigned long flags)
+{
+        r->flags &= ~flags;
+}
+
 #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
 int memblock_set_node(phys_addr_t base, phys_addr_t size, int nid);