mmap as much as the file as we are able to when the cache process opens the stevedore.
mmap as much as the file as we are able to when the cache process opens
the stevedore.

This should probably be (fine-)tuned later on as it might be too aggressive
when faced with user errors.

Also, might it be possible to mmap() more than MAX_SIZE_T bytes if
it is done in multiple calls ?



git-svn-id: 7d4b18ab7d176792635d6a7a77dd8cbbea8e8daa@176 d4fa192b-c00b-0410-8231-f00ffab90ce4

CartoDB/Varnish-Cache,ssm/pkg-varnish,wikimedia/operations-debs-varnish,CartoDB/Varnish-Cache,CartoDB/Varnish-Cache,wikimedia/operations-debs-varnish,ssm/pkg-varnish,ssm/pkg-varnish,wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,ssm/pkg-varnish,ssm/pkg-varnish