1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>journal_forget</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="functions.html#transaction_level" title="Transasction Level"><link rel="prev" href="API-journal-dirty-metadata.html" title="journal_dirty_metadata"><link rel="next" href="API-journal-stop.html" title="journal_stop"></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">journal_forget</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-journal-dirty-metadata.html">Prev</a>&#160;</td><th width="60%" align="center">Transasction Level</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-journal-stop.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-journal-forget"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>journal_forget &#8212; 
2     <code class="function">bforget</code> for potentially-journaled buffers.
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">int <b class="fsfunc">journal_forget </b>(</code></td><td>handle_t * <var class="pdparam">handle</var>, </td></tr><tr><td>&#160;</td><td>struct buffer_head * <var class="pdparam">bh</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1103928276"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>handle</code></em></span></dt><dd><p>
4     transaction handle
5    </p></dd><dt><span class="term"><em class="parameter"><code>bh</code></em></span></dt><dd><p>
6     bh to 'forget'
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1103930892"></a><h2>Description</h2><p>
8   We can only do the bforget if there are no commits pending against the
9   buffer.  If the buffer is dirty in the current running transaction we
10   can safely unlink it.
11   </p><p>
12
13   bh may not be a journalled buffer at all - it may be a non-JBD
14   buffer which came off the hashtable.  Check for this.
15   </p><p>
16
17   Decrements bh-&gt;b_count by one.
18   </p><p>
19
20   Allow this call even if the handle has aborted --- it may be part of
21   the caller's cleanup after an abort.
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