tree 904bbf718ccfd7354725510ddd0f65f68d1ab035
parent 6a9872ac38d323716ebb087ddefc663c71f7c8d2
author Sami Tolvanen <samitolvanen@google.com> 1426075242 +0000
committer Sami Tolvanen <samitolvanen@google.com> 1429000120 +0100

Enable dm-verity on shamu

Enable dm-verity for the system partition. Store state in the metadata
partition, and display a warning if dm-verity is started in logging
mode.

Increasing read-ahead for dm-verity devices from the default 512 to
2048 improves sequential read speeds 13-18% for block sizes 1k-2k and
~30% for larger block sizes (tested up to 32k), without considerably
affecting 512 byte block reads.

Change-Id: I9422a57b5315e69cf0610262259b13ae9e370fd3