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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>journal_forget</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="ch05s03.html#transaction_level" title="Transasction Level" /><link rel="prev" href="re202.html" title="journal_dirty_metadata" /><link rel="next" href="re204.html" title="journal_stop" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>journal_forget</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re202.html">Prev</a> </td><th width="60%" align="center">Transasction Level</th><td width="20%" align="right"> <a accesskey="n" href="re204.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="journal_forget"><a id="API-journal-forget"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>journal_forget —
<code class="function">bforget</code> for potentially-journaled buffers.
</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">int <b class="fsfunc">journal_forget </b>(</code></td><td>handle_t * <var class="pdparam">handle</var>, </td></tr><tr><td> </td><td>struct buffer_head * <var class="pdparam">bh</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id3129778"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>handle</code></em></span></dt><dd><p>
transaction handle
</p></dd><dt><span class="term"><em class="parameter"><code>bh</code></em></span></dt><dd><p>
bh to 'forget'
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id3129822"></a><h2>Description</h2><p>
We can only do the bforget if there are no commits pending against the
buffer. If the buffer is dirty in the current running transaction we
can safely unlink it.
</p><p>
bh may not be a journalled buffer at all - it may be a non-JBD
buffer which came off the hashtable. Check for this.
</p><p>
Decrements bh->b_count by one.
</p><p>
Allow this call even if the handle has aborted --- it may be part of
the caller's cleanup after an abort.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re202.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch05s03.html#transaction_level">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re204.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>journal_dirty_metadata</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>journal_stop</span></td></tr></table></div></body></html>
