1 files changed, 9 insertions, 0 deletions

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 37d0157167b0..d3c3939ac751 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -180,6 +180,15 @@ struct btrfs_device_info {
         u64 total_avail;
 };
 
+struct btrfs_raid_attr {
+        int sub_stripes;        /* sub_stripes info for map */
+        int dev_stripes;        /* stripes per dev */
+        int devs_max;           /* max devs to use */
+        int devs_min;           /* min devs needed */
+        int devs_increment;     /* ndevs has to be a multiple of this */
+        int ncopies;            /* how many copies to data has */
+};
+
 struct map_lookup {
         u64 type;
         int io_align;