// for example an i-node block.
//
// Read-only system calls don't need to use transactions, though
-// this means that they may observe uncommitted data. I-node
-// and buffer locks prevent read-only calls from seeing inconsistent data.
+// this means that they may observe uncommitted data. I-node and
+// buffer locks prevent read-only calls from seeing inconsistent data.
//
// The log is a physical re-do log containing disk blocks.
// The on-disk log format: