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>.

Debian                                            July 19, 2003                                VM_MAP_INHERIT(9)