Split rushing of waiting list into two stages: 1 get the req's to be rushed under the oh->mtx.  2 rush them out of the mtx.
Split rushing of waiting list into two stages: 1 get the req's to be rushed
under the oh->mtx.  2 rush them out of the mtx.

feld/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,gquintard/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache