Merge from trunk:

Merge from trunk:

mpm_{worker,prefork}: save some cycles by not copying the listener's pollfds
for each pollset operation.

We don't need a copy when poll()ing if those are allocated with the correct
lifetime (the listener thread) at the very beginning.

  *) worker, prefork: save some cycles by not copying the listener's pollfds
                      for each pollset operation
     trunk patch: http://svn.apache.org/r1662437
     2.4.x patch: svn merge -c 1662437 ^/httpd/httpd/trunk .
     +1: jailletc36, ylavic, jim

Submitted By: jailletc36
Reviewed By: jailletc36, ylavic, jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1797651 13f79535-47bb-0310-9956-ffa450edef68