1 files changed, 20 insertions, 5 deletions

diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 09658b218474..7a36e38393a1 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -16,7 +16,11 @@
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
 */
 
-#include <linux/raid/linear.h>
+#include <linux/blkdev.h>
+#include <linux/raid/md_u.h>
+#include <linux/seq_file.h>
+#include "md.h"
+#include "linear.h"
 
 /*
  * find which device holds a particular offset 
@@ -97,6 +101,16 @@ static int linear_congested(void *data, int bits)
         return ret;
 }
 
+static sector_t linear_size(mddev_t *mddev, sector_t sectors, int raid_disks)
+{
+        linear_conf_t *conf = mddev_to_conf(mddev);
+
+        WARN_ONCE(sectors || raid_disks,
+                  "%s does not support generic reshape\n", __func__);
+
+        return conf->array_sectors;
+}
+
 static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
 {
         linear_conf_t *conf;
@@ -135,8 +149,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
                     mddev->queue->max_sectors > (PAGE_SIZE>>9))
                         blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
 
-                disk->num_sectors = rdev->size * 2;
-                conf->array_sectors += rdev->size * 2;
+                disk->num_sectors = rdev->sectors;
+                conf->array_sectors += rdev->sectors;
 
                 cnt++;
         }
@@ -249,7 +263,7 @@ static int linear_run (mddev_t *mddev)
         if (!conf)
                 return 1;
         mddev->private = conf;
-        mddev->array_sectors = conf->array_sectors;
+        md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
 
         blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec);
         mddev->queue->unplug_fn = linear_unplug;
@@ -283,7 +297,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
         newconf->prev = mddev_to_conf(mddev);
         mddev->private = newconf;
         mddev->raid_disks++;
-        mddev->array_sectors = newconf->array_sectors;
+        md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
         set_capacity(mddev->gendisk, mddev->array_sectors);
         return 0;
 }
@@ -381,6 +395,7 @@ static struct mdk_personality linear_personality =
         .stop           = linear_stop,
         .status         = linear_status,
         .hot_add_disk   = linear_add,
+        .size           = linear_size,
 };
 
 static int __init linear_init (void)