fix incompat flags

I forgot to add BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL to the incompat flags in
btrfs-progs.  This adds it so that our tools don't freak out when touching a fs
with the default subvolume changed.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>

diff --git a/ctree.h b/ctree.h
index 64ecf12..b79e238 100644 (file)
--- a/ctree.h
+++ b/ctree.h
@@ -350,11 +350,13 @@ struct btrfs_super_block {
  * ones specified below then we will fail to mount
  */
 #define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF   (1ULL << 0)
+#define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL  (2ULL << 0)
 
 #define BTRFS_FEATURE_COMPAT_SUPP              0ULL
 #define BTRFS_FEATURE_COMPAT_RO_SUPP           0ULL
 #define BTRFS_FEATURE_INCOMPAT_SUPP            \
-       BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF
+       (BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \
+        BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL)
 
 /*
  * A leaf is full of items. offset and size tell us where to find