NAME

     vm_map_inherit — set fork inheritance flags for a range within a map

SYNOPSIS

     #include <sys/param.h>
     #include <vm/vm.h>
     #include <vm/vm_map.h>

     int
     vm_map_inherit(vm_map_t map, vm_offset_t start, vm_offset_t end,
         vm_inherit_t new_inheritance);

DESCRIPTION

     The vm_map_inherit() function sets the inheritance flags for the range start to end within
     the target map to the value new_inheritance.

     The new_inheritance flag must have one of the values VM_INHERIT_NONE, VM_INHERIT_COPY, or
     VM_INHERIT_SHARE.  This affects how the map will be shared with child maps when the
     associated process forks.

IMPLEMENTATION NOTES

     The vm_map_inherit() function obtains a lock on the map using vm_map_lock(9) for the
     duration of the function.

RETURN VALUES

     The vm_map_inherit() function returns KERN_SUCCESS if the inheritance flags could be set.
     Otherwise, if the provided flags were invalid, KERN_INVALID_ARGUMENT will be returned.

SEE ALSO

     fork(2)

AUTHORS

     This manual page was written by Bruce M Simpson <bms@spc.org>.