bsd/man/man2/minherit.2

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  34 .\"     @(#)minherit.2  8.1 (Berkeley) 6/9/93
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  36 .Dd June 9, 1993
  37 .Dt MINHERIT 2
  38 .Os
  39 .Sh NAME
  40 .Nm minherit
  41 .Nd control the inheritance of pages
  42 .Sh SYNOPSIS
  43 .Fd #include <sys/types.h>
  44 .Fd #include <sys/mman.h>
  45 .Ft int
  46 .Fn minherit "caddr_t addr" "size_t len" "int inherit"
  47 .Sh DESCRIPTION
  48 The
  49 .Fn minherit
  50 system call
  51 changes the specified pages to have the inheritance characteristic
  52 .Fa inherit ,
  53 which can be set to VM_INHERIT_NONE, VM_INHERIT_COPY, or VM_INHERIT_SHARE.
  54 Not all implementations will guarantee that the inheritance characteristic
  55 can be set on a page basis;
  56 the granularity of changes may be as large as an entire region.
  57 .Sh SEE ALSO
  58 .Xr madvise 2 ,
  59 .Xr mincore 2 ,
  60 .Xr mprotect 2 ,
  61 .Xr msync 2 ,
  62 .Xr munmap 2
  63 .Sh HISTORY
  64 The
  65 .Fn minherit
  66 function first appeared in
  67 .Bx Open .