1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 360937389e64..7b4a3c318cae 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -393,10 +393,13 @@ struct mddev {
                                                  * For external metadata, offset
                                                  * from start of device. 
                                                  */
+                unsigned long           space; /* space available at this offset */
                 loff_t                  default_offset; /* this is the offset to use when
                                                          * hot-adding a bitmap.  It should
                                                          * eventually be settable by sysfs.
                                                          */
+                unsigned long           default_space; /* space available at
+                                                        * default offset */
                 struct mutex            mutex;
                 unsigned long           chunksize;
                 unsigned long           daemon_sleep; /* how many jiffies between updates? */