MINHERIT(2)                 BSD System Calls Manual                MINHERIT(2)

NAME
     minherit -- control the inheritance of pages

SYNOPSIS
     #include <sys/types.h>
     #include <sys/mman.h>

     int
     minherit(caddr_t addr, size_t len, int inherit);

DESCRIPTION
     The minherit() system call changes the specified pages to have the inher-
     itance characteristic inherit, which can be set to VM_INHERIT_NONE,
     VM_INHERIT_COPY, or VM_INHERIT_SHARE.  Not all implementations will guar-
     antee that the inheritance characteristic can be set on a page basis; the
     granularity of changes may be as large as an entire region.

RETURN VALUES
     The minherit() function returns the value 0 if successful; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS
     The minherit() system call will fail if:

     [EINVAL]           The virtual address range specified by the addr and
                        len arguments is not valid.

     [EACCES]           The flags specified by the inherit argument were not
                        valid for the pages specified by the addr and len
                        arguments.

SEE ALSO
     madvise(2), mincore(2), mprotect(2), msync(2), munmap(2)

HISTORY
     The minherit() function first appeared in OpenBSD.

BSD                              June 9, 1993                              BSD