1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>d_add_ci</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="the_directory_cache.html" title="The Directory Cache"><link rel="prev" href="API-d-obtain-root.html" title="d_obtain_root"><link rel="next" href="API-d-lookup.html" title="d_lookup"></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">d_add_ci</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-d-obtain-root.html">Prev</a>&#160;</td><th width="60%" align="center">The Directory Cache</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-d-lookup.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-d-add-ci"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>d_add_ci &#8212; 
2     lookup or allocate new dentry with case-exact 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 dentry * <b class="fsfunc">d_add_ci </b>(</code></td><td>struct dentry * <var class="pdparam">dentry</var>, </td></tr><tr><td>&#160;</td><td>struct inode * <var class="pdparam">inode</var>, </td></tr><tr><td>&#160;</td><td>struct qstr * <var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1101486596"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dentry</code></em></span></dt><dd><p>
4     the negative dentry that was passed to the parent's lookup func
5    </p></dd><dt><span class="term"><em class="parameter"><code>inode</code></em></span></dt><dd><p>
6     the inode case-insensitive lookup has found
7    </p></dd><dt><span class="term"><em class="parameter"><code>name</code></em></span></dt><dd><p>
8     the case-exact name to be associated with the returned dentry
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1101490252"></a><h2>Description</h2><p>
10   This is to avoid filling the dcache with case-insensitive names to the
11   same inode, only the actual correct case is stored in the dcache for
12   case-insensitive filesystems.
13   </p><p>
14
15   For a case-insensitive lookup match and if the the case-exact dentry
16   already exists in in the dcache, use it and return it.
17   </p><p>
18
19   If no entry exists with the exact case name, allocate new dentry with
20   the exact case, and return the spliced entry.
21</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-d-obtain-root.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="the_directory_cache.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-d-lookup.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">d_obtain_root</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;<span class="phrase">d_lookup</span></td></tr></table></div></body></html>
22