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-rw-r--r--core/fs/btrfs/btrfs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/core/fs/btrfs/btrfs.h b/core/fs/btrfs/btrfs.h
index 8f519a9c..32e7c703 100644
--- a/core/fs/btrfs/btrfs.h
+++ b/core/fs/btrfs/btrfs.h
@@ -56,6 +56,8 @@ typedef u64 __le64;
#define BTRFS_MAX_LEVEL 8
#define BTRFS_MAX_CHUNK_ENTRIES 256
+#define BTRFS_DEV_ITEMS_OBJECTID 1ULL
+
#define BTRFS_FT_REG_FILE 1
#define BTRFS_FT_DIR 2
#define BTRFS_FT_SYMLINK 7