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

     minherit -- control the inheritance of pages

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

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

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

     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.

     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.

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

     The minherit() function first appeared in OpenBSD.

BSD                              June 9, 1993                              BSD

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