zfsonlinux/zfs — pull request #1622 by behlendorf (2013-08-01 22:27:18+00:00)
Title: Illumos #3137 L2ARC compression

3137 L2ARC compression
Reviewed by: George Wilson
Reviewed by: Matthew Ahrens
Approved by: Dan McDonald

References:
illumos/illumos-gate@aad02571bc59671aa3103bb070ae365f531b0b62
https://www.illumos.org/issues/3137
http://wiki.illumos.org/display/illumos/L2ARC+Compression

Notes for Linux port:

A l2arc_nocompress module option was added to prevent the
compression of l2arc buffers regardless of how a dataset's
compression property is set. This allows the legacy behavior
to be preserved.

Ported by: James H
Signed-off-by: Brian Behlendorf
Issue #1379