Symbol: MCL_FUTURE
sys/uvm/uvm_map.c
2347
if (flags & MCL_FUTURE)
sys/uvm/uvm_mmap.c
902
(flags & ~(MCL_CURRENT|MCL_FUTURE)) != 0)
usr.sbin/watchdogd/watchdogd.c
153
(void)mlockall(MCL_CURRENT | MCL_FUTURE);