#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/swap.h>
+#include <linux/gfp.h>
static struct sysdev_class_attribute *node_state_attrs[];
int len = 0;
int i;
- /* buf currently PAGE_SIZE, need ~4 chars per node */
- BUILD_BUG_ON(MAX_NUMNODES*4 > PAGE_SIZE/2);
+ /*
+ * buf is currently PAGE_SIZE in length and each node needs 4 chars
+ * at the most (distance + space or newline).
+ */
+ BUILD_BUG_ON(MAX_NUMNODES * 4 > PAGE_SIZE);
for_each_online_node(i)
len += sprintf(buf + len, "%s%d", i ? " " : "", node_distance(nid, i));