static/freebsd/man9/vm_map_madvise.9 4.html


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<table class="head">
  <tr>
    <td class="head-ltitle">VM_MAP_MADVISE(9)</td>
    <td class="head-vol">Kernel Developer's Manual</td>
    <td class="head-rtitle">VM_MAP_MADVISE(9)</td>
  </tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">vm_map_madvise</code> &#x2014;
    <span class="Nd">apply advice about use of memory to map entries</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="In">#include
    &lt;<a class="In">sys/param.h</a>&gt;</code>
  <br/>
  <code class="In">#include &lt;<a class="In">vm/vm.h</a>&gt;</code>
  <br/>
  <code class="In">#include &lt;<a class="In">vm/vm_map.h</a>&gt;</code></p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">vm_map_madvise</code>(<var class="Fa">vm_map_t map</var>,
    <var class="Fa">vm_offset_t start</var>, <var class="Fa">vm_offset_t
    end</var>, <var class="Fa">int behav</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The
    <a class="permalink" href="#vm_map_madvise"><code class="Fn" id="vm_map_madvise">vm_map_madvise</code></a>()
    function applies the flags <var class="Fa">behav</var> to the entries within
    <var class="Fa">map</var> between <var class="Fa">start</var> and
    <var class="Fa">end</var>.</p>
<p class="Pp">Advisories are classified as either those affecting the
    <var class="Vt">vm_map_entry</var> structure, or those affecting the
    underlying objects.</p>
<p class="Pp" id="vm_map_madvise~2">The
    <a class="permalink" href="#vm_map_madvise~2"><code class="Fn">vm_map_madvise</code></a>()
    function is used by the <a class="Xr">madvise(2)</a> system call.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
<p class="Pp">The <code class="Fn">vm_map_madvise</code>() function returns 0 if
    successful. If the <var class="Fa">behav</var> argument was not recognised,
    <code class="Dv">KERN_INVALID_ARGUMENT</code> is returned.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
  ALSO</a></h1>
<p class="Pp"><a class="Xr">madvise(2)</a>, <a class="Xr">vm_map(9)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">This manual page was written by <span class="An">Bruce M
    Simpson</span>
    &lt;<a class="Mt" href="mailto:bms@spc.org">bms@spc.org</a>&gt;.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">July 19, 2003</td>
    <td class="foot-os">FreeBSD 15.0</td>
  </tr>
</table>