4e59f47511
3964 L2ARC should always compress metadata buffers Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> References: https://www.illumos.org/issues/3964 Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1379