btrfs: support recursively removing btrfs snapshots

[elogind.git] / src / shared / missing.h

diff --git a/src/shared/missing.h b/src/shared/missing.h
index eddfa78b8b167ef43b6a3ae887fc49c70b422904..c51f373b61e92b53845a26c37cc43bf976970c66 100644 (file)
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -424,6 +424,10 @@ struct btrfs_ioctl_clone_range_args {
 #define BTRFS_FIRST_FREE_OBJECTID 256
 #endif
 
+#ifndef BTRFS_LAST_FREE_OBJECTID
+#define BTRFS_LAST_FREE_OBJECTID -256ULL
+#endif
+
 #ifndef BTRFS_ROOT_TREE_OBJECTID
 #define BTRFS_ROOT_TREE_OBJECTID 1
 #endif
@@ -448,6 +452,10 @@ struct btrfs_ioctl_clone_range_args {
 #define BTRFS_QGROUP_LIMIT_KEY 244
 #endif
 
+#ifndef BTRFS_ROOT_BACKREF_KEY
+#define BTRFS_ROOT_BACKREF_KEY 144
+#endif
+
 #ifndef BTRFS_SUPER_MAGIC
 #define BTRFS_SUPER_MAGIC 0x9123683E
 #endif