1 files changed, 7 insertions, 2 deletions

diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h
index 94dbdd406f12..b7b2653af7bb 100644
--- a/include/linux/raid/raid5.h
+++ b/include/linux/raid/raid5.h
@@ -216,7 +216,11 @@ struct raid5_private_data {
         struct list_head        bitmap_list; /* stripes delaying awaiting bitmap update */
         atomic_t                preread_active_stripes; /* stripes with scheduled io */
 
-        char                    cache_name[20];
+        /* unfortunately we need two cache names as we temporarily have
+         * two caches.
+         */
+        int                     active_name;
+        char                    cache_name[2][20];
         kmem_cache_t            *slab_cache; /* for allocating stripes */
 
         int                     seq_flush, seq_write;
@@ -238,7 +242,8 @@ struct raid5_private_data {
         wait_queue_head_t       wait_for_overlap;
         int                     inactive_blocked;       /* release of inactive stripes blocked,
                                                          * waiting for 25% to be free
-                                                         */        
+                                                         */
+        int                     pool_size; /* number of disks in stripeheads in pool */
         spinlock_t              device_lock;
         struct disk_info        *disks;
 };