Sophie: kernel-doc-3.11.10-100.fc18 noarch

kernel-doc-3.11.10-100.fc18.noarch.rpm

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>iget5_locked</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="inode_handling.html" title="Inode Handling" /><link rel="prev" href="API-unlock-new-inode.html" title="unlock_new_inode" /><link rel="next" href="API-iget-locked.html" title="iget_locked" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">iget5_locked</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-unlock-new-inode.html">Prev</a>&#160;</td><th width="60%" align="center">Inode Handling</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-iget-locked.html">Next</a></td></tr></table><hr /></div><div class="refentry"><a id="API-iget5-locked"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>iget5_locked &#8212; 
     obtain an inode from a mounted file system
 </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 inode * <strong class="fsfunc">iget5_locked </strong>(</code></td><td>struct super_block * <var class="pdparam">sb</var>, </td></tr><tr><td>&#160;</td><td>unsigned long <var class="pdparam">hashval</var>, </td></tr><tr><td>&#160;</td><td>int (*<var class="pdparam">test</var>)
     <code>(</code>struct inode *, void *<code>)</code>, </td></tr><tr><td>&#160;</td><td>int (*<var class="pdparam">set</var>)
     <code>(</code>struct inode *, void *<code>)</code>, </td></tr><tr><td>&#160;</td><td>void * <var class="pdparam">data</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a id="idm139881796175440"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>sb</code></em></span></dt><dd><p>
     super block of file system
    </p></dd><dt><span class="term"><em class="parameter"><code>hashval</code></em></span></dt><dd><p>
     hash value (usually inode number) to get
    </p></dd><dt><span class="term"><em class="parameter"><code>test</code></em></span></dt><dd><p>
     callback used for comparisons between inodes
    </p></dd><dt><span class="term"><em class="parameter"><code>set</code></em></span></dt><dd><p>
     callback used to initialize a new struct inode
    </p></dd><dt><span class="term"><em class="parameter"><code>data</code></em></span></dt><dd><p>
     opaque data pointer to pass to <em class="parameter"><code>test</code></em> and <em class="parameter"><code>set</code></em>
    </p></dd></dl></div></div><div class="refsect1"><a id="idm139881796163440"></a><h2>Description</h2><p>
   Search for the inode specified by <em class="parameter"><code>hashval</code></em> and <em class="parameter"><code>data</code></em> in the inode cache,
   and if present it is return it with an increased reference count. This is
   a generalized version of <code class="function">iget_locked</code> for file systems where the inode
   number is not sufficient for unique identification of an inode.
   </p><p>

   If the inode is not in cache, allocate a new inode and return it locked,
   hashed, and with the I_NEW flag set. The file system gets to fill it in
   before unlocking it via <code class="function">unlock_new_inode</code>.
   </p><p>

   Note both <em class="parameter"><code>test</code></em> and <em class="parameter"><code>set</code></em> are called with the inode_hash_lock held, so can't
   sleep.
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