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<html xmlns="http://www.w3.org/1999/xhtml"><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 V1.75.2" /><link rel="home" href="index.html" title="Linux Filesystems API" /><link rel="up" href="ch01s02.html" title="The Directory Cache" /><link rel="prev" href="re14.html" title="d_splice_alias" /><link rel="next" href="re16.html" title="d_lookup" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>d_add_ci</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re14.html">Prev</a> </td><th width="60%" align="center">The Directory Cache</th><td width="20%" align="right"> <a accesskey="n" href="re16.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="d_add_ci"><a id="API-d-add-ci"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>d_add_ci —
lookup or allocate new dentry with case-exact name
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><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> </td><td>struct inode * <var class="pdparam">inode</var>, </td></tr><tr><td> </td><td>struct qstr * <var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id3004126"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>dentry</code></em></span></dt><dd><p>
the negative dentry that was passed to the parent's lookup func
</p></dd><dt><span class="term"><em class="parameter"><code>inode</code></em></span></dt><dd><p>
the inode case-insensitive lookup has found
</p></dd><dt><span class="term"><em class="parameter"><code>name</code></em></span></dt><dd><p>
the case-exact name to be associated with the returned dentry
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id3004187"></a><h2>Description</h2><p>
This is to avoid filling the dcache with case-insensitive names to the
same inode, only the actual correct case is stored in the dcache for
case-insensitive filesystems.
</p><p>
For a case-insensitive lookup match and if the the case-exact dentry
already exists in in the dcache, use it and return it.
</p><p>
If no entry exists with the exact case name, allocate new dentry with
the exact case, and return the spliced entry.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re14.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch01s02.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re16.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>d_splice_alias</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>d_lookup</span></td></tr></table></div></body></html>
