VM_MAP_INHERIT(9) FreeBSD Kernel Developer's Manual VM_MAP_INHERIT(9)
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 <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 July 19, 2003 FreeBSD 14.1-RELEASE-p8