1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>bdget_disk</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux Kernel API"><link rel="up" href="blkdev.html" title="Chapter&#160;14.&#160;Block Devices"><link rel="prev" href="API-get-gendisk.html" title="get_gendisk"><link rel="next" href="chrdev.html" title="Chapter&#160;15.&#160;Char devices"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">bdget_disk</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-get-gendisk.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;14.&#160;Block Devices</th><td width="20%" align="right">&#160;<a accesskey="n" href="chrdev.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-bdget-disk"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>bdget_disk &#8212; 
2     do <code class="function">bdget</code> by gendisk and partition number
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">struct block_device * <b class="fsfunc">bdget_disk </b>(</code></td><td>struct gendisk * <var class="pdparam">disk</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">partno</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1129061084"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>disk</code></em></span></dt><dd><p>
4     gendisk of interest
5    </p></dd><dt><span class="term"><em class="parameter"><code>partno</code></em></span></dt><dd><p>
6     partition number
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1129063716"></a><h2>Description</h2><p>
8   Find partition <em class="parameter"><code>partno</code></em> from <em class="parameter"><code>disk</code></em>, do <code class="function">bdget</code> on it.
9</p></div><div class="refsect1"><a name="idp1129065412"></a><h2>CONTEXT</h2><p>
10   Don't care.
11</p></div><div class="refsect1"><a name="idp1129066028"></a><h2>RETURNS</h2><p>
12   Resulting block_device on success, NULL on failure.
13</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-get-gendisk.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="blkdev.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="chrdev.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">get_gendisk</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;Chapter&#160;15.&#160;Char devices</td></tr></table></div></body></html>
14