Locking All Pages

A superuser process can request that all mappings within its address space be locked by a call to mlockall(). If the flag MCL_CURRENT is set, all the existing memory mappings are locked. If the flag MCL_FUTURE is set, every mapping that is added to an existing mapping or that replaces an existing mapping is locked into memory. For more information, see the mlockall(3C) man page.