K 10
svn:author
V 3
imp
K 8
svn:date
V 27
2018-04-11T19:46:24.504041Z
K 7
svn:log
V 358
Refactor currdev setting

Refactor the currdev setting to find the device we booted from. Limit
searching when we don't already have a reasonable currdev from that to
the same device only. Search a little harder for ZFS volumes as that's
needed for loader.efi to live on an ESP.

Sponsored by: Netflix
Differential Review: https://reviews.freebsd.org/D13784

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