1 files changed, 31 insertions, 0 deletions
diff --git a/cmd/btrfs-rec/inspect/rebuildtrees/util.go b/cmd/btrfs-rec/inspect/rebuildtrees/util.go
new file mode 100644
index 0000000..71caee0
--- /dev/null
+++ b/cmd/btrfs-rec/inspect/rebuildtrees/util.go
@@ -0,0 +1,31 @@
+// Copyright (C) 2022-2023  Luke Shumaker <lukeshu@lukeshu.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package rebuildtrees
+
+import (
+	"golang.org/x/exp/constraints"
+
+	"git.lukeshu.com/btrfs-progs-ng/cmd/btrfs-rec/inspect/rebuildmappings"
+)
+
+func countNodes(nodeScanResults rebuildmappings.ScanDevicesResult) int {
+	var cnt int
+	for _, devResults := range nodeScanResults {
+		cnt += len(devResults.FoundNodes)
+	}
+	return cnt
+}
+
+func roundDown[T constraints.Integer](n, d T) T {
+	return (n / d) * d
+}
+
+func roundUp[T constraints.Integer](n, d T) T {
+	return ((n + d - 1) / d) * d
+}
+
+func discardOK[T any](val T, _ bool) T {
+	return val
+}