summaryrefslogtreecommitdiffstats
path: root/fs/btrfs/orphan.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs/orphan.c')
-rw-r--r--fs/btrfs/orphan.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/fs/btrfs/orphan.c b/fs/btrfs/orphan.c
new file mode 100644
index 0000000000..7a1b021b56
--- /dev/null
+++ b/fs/btrfs/orphan.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2008 Red Hat. All rights reserved.
+ */
+
+#include "ctree.h"
+#include "disk-io.h"
+#include "orphan.h"
+
+int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root, u64 offset)
+{
+ struct btrfs_path *path;
+ struct btrfs_key key;
+ int ret = 0;
+
+ key.objectid = BTRFS_ORPHAN_OBJECTID;
+ key.type = BTRFS_ORPHAN_ITEM_KEY;
+ key.offset = offset;
+
+ path = btrfs_alloc_path();
+ if (!path)
+ return -ENOMEM;
+
+ ret = btrfs_insert_empty_item(trans, root, path, &key, 0);
+
+ btrfs_free_path(path);
+ return ret;
+}
+
+int btrfs_del_orphan_item(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root, u64 offset)
+{
+ struct btrfs_path *path;
+ struct btrfs_key key;
+ int ret = 0;
+
+ key.objectid = BTRFS_ORPHAN_OBJECTID;
+ key.type = BTRFS_ORPHAN_ITEM_KEY;
+ key.offset = offset;
+
+ path = btrfs_alloc_path();
+ if (!path)
+ return -ENOMEM;
+
+ ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
+ if (ret < 0)
+ goto out;
+ if (ret) { /* JDM: Really? */
+ ret = -ENOENT;
+ goto out;
+ }
+
+ ret = btrfs_del_item(trans, root, path);
+
+out:
+ btrfs_free_path(path);
+ return ret;
+}