numa: convert static memory to dynamically allocated memory for per node device
We use a static array to store struct node. In many cases, we don't have
too many nodes, and some memory will be unused. Convert it to per-device
dynamically allocated memory.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/node.h b/include/linux/node.h
index 624e53c..10316f1 100644
--- a/include/linux/node.h
+++ b/include/linux/node.h
@@ -27,7 +27,7 @@
};
struct memory_block;
-extern struct node node_devices[];
+extern struct node *node_devices[];
typedef void (*node_registration_func_t)(struct node *);
extern int register_node(struct node *, int, struct node *);