svn commit: r335066 - in head/sys: kern sys

[Ian Lepore]

On Wed, 2018-06-13 at 13:22 -0600, Warner Losh wrote:
> So we implement the elevator algorithm, but limit the number of requests
> that we can put in each 'car'. Elevators themselves are sometimes call
> 'cars' for reasons I have no clue about.

An "elevator" is an entire system for moving something vertically. It
includes a lift mechanism, guide system (rails, etc), control
mechanisms, etc. When the portion of the system that moves is an
enclosed space (not a simple platform or bucket) which carries people
and/or goods, that part is called a "carriage" or "car".

-- Ian (who was oddly fascinated by elevators as a child)