1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f31c33119bb6..94334d952280 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1639,7 +1639,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
         device->dev_root = root->fs_info->dev_root;
         device->bdev = bdev;
         device->in_fs_metadata = 1;
-        device->mode = 0;
+        device->mode = FMODE_EXCL;
         set_blocksize(device->bdev, 4096);
 
         if (seeding_dev) {