Btrfs: add a incompatible format change for smaller metadata extent refs

[linux-imx.git] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index e0665488e51288236e2f902348bf46030d23c1f4..f47754a2fee42c20cdaee9c912386f06ab67e4ec 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2290,6 +2290,9 @@ int open_ctree(struct super_block *sb,
        if (tree_root->fs_info->compress_type == BTRFS_COMPRESS_LZO)
                features |= BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO;
 
+       if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
+               printk(KERN_ERR "btrfs: has skinny extents\n");
+
        /*
         * flag our filesystem as having big metadata blocks if
         * they are bigger than the page size