1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>lookup_bdev</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Filesystems API"><link rel="up" href="other_functions.html" title="Other Functions"><link rel="prev" href="API-blkdev-get-by-dev.html" title="blkdev_get_by_dev"><link rel="next" href="proc.html" title="Chapter&#160;2.&#160;The proc filesystem"></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">lookup_bdev</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-blkdev-get-by-dev.html">Prev</a>&#160;</td><th width="60%" align="center">Other Functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="proc.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-lookup-bdev"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>lookup_bdev &#8212; 
2     lookup a struct block_device by name
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">lookup_bdev </b>(</code></td><td>const char * <var class="pdparam">pathname</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1102978572"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>pathname</code></em></span></dt><dd><p>
4     special file representing the block device
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1102980212"></a><h2>Description</h2><p>
6   Get a reference to the blockdevice at <em class="parameter"><code>pathname</code></em> in the current
7   namespace if possible and return it.  Return ERR_PTR(error)
8   otherwise.
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