cmd/utils: add workaround for FreeBSD statfs quirk (ethereum#22310)

Make geth build on FreeBSD, fixes ethereum#22309.
mghre7 · Feb 15, 2021 · 08c878a · 08c878a
1 parent 7d1b711
commit 08c878a
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/cmd/utils/diskusage.go b/cmd/utils/diskusage.go
@@ -31,5 +31,12 @@ func getFreeDiskSpace(path string) (uint64, error) {
 	}
 
 	// Available blocks * size per block = available space in bytes
-	return stat.Bavail * uint64(stat.Bsize), nil
+	var bavail = stat.Bavail
+	if stat.Bavail < 0 {
+		// FreeBSD can have a negative number of blocks available
+		// because of the grace limit.
+		bavail = 0
+	}
+	//nolint:unconvert
+	return uint64(bavail) * uint64(stat.Bsize), nil
 }