[OpenZFS Developer] Review Request 139: 5369, 5370 arc code cleanup

--- This is an automatically generated e-mail. To reply, visit: https://reviews.csiden.org/r/139/ --- Review request for OpenZFS Developer Mailing List and Christopher Siden. Bugs: 53

[OpenZFS Developer] Review Request 138: 5368 ARC should cache more metadata

--- This is an automatically generated e-mail. To reply, visit: https://reviews.csiden.org/r/138/ --- Review request for OpenZFS Developer Mailing List. Bugs: 5368 https://www.ill