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-rw-r--r--include/linux/memory.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/memory.h b/include/linux/memory.h
index f53cfdaaaa41..939a16bd5cea 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -96,8 +96,17 @@ int set_memory_block_size_order(unsigned int order);
#define MEM_GOING_ONLINE (1<<3)
#define MEM_CANCEL_ONLINE (1<<4)
#define MEM_CANCEL_OFFLINE (1<<5)
+#define MEM_PREPARE_ONLINE (1<<6)
+#define MEM_FINISH_OFFLINE (1<<7)
struct memory_notify {
+ /*
+ * The altmap_start_pfn and altmap_nr_pages fields are designated for
+ * specifying the altmap range and are exclusively intended for use in
+ * MEM_PREPARE_ONLINE/MEM_FINISH_OFFLINE notifiers.
+ */
+ unsigned long altmap_start_pfn;
+ unsigned long altmap_nr_pages;
unsigned long start_pfn;
unsigned long nr_pages;
int status_change_nid_normal;