1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 212e53167f88..e771e183891e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -11,6 +11,22 @@
 
 #include <asm/scatterlist.h>
 
+/*
+ * Disk stats ...
+ */
+
+#define DK_MAX_MAJOR 16
+#define DK_MAX_DISK 16
+ 
+struct disk_stat {
+        unsigned int drive[DK_MAX_MAJOR][DK_MAX_DISK];
+        unsigned int drive_rio[DK_MAX_MAJOR][DK_MAX_DISK];
+        unsigned int drive_wio[DK_MAX_MAJOR][DK_MAX_DISK];
+        unsigned int drive_rblk[DK_MAX_MAJOR][DK_MAX_DISK];
+        unsigned int drive_wblk[DK_MAX_MAJOR][DK_MAX_DISK];
+};
+extern struct disk_stat dkstat;
+
 struct request_queue;
 typedef struct request_queue request_queue_t;
 struct elevator_s;