1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>journal_dirty_data</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-get-undo-access.html" title="journal_get_undo_access"><link rel="next" href="API-journal-dirty-metadata.html" title="journal_dirty_metadata"></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_dirty_data</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-journal-get-undo-access.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-dirty-metadata.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-journal-dirty-data"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>journal_dirty_data &#8212; 
2     mark a buffer as containing dirty data to be flushed
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_dirty_data </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="idp1103908452"></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
5    </p></dd><dt><span class="term"><em class="parameter"><code>bh</code></em></span></dt><dd><p>
6     bufferhead to mark
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1103911028"></a><h2>Description</h2><p>
8   Mark a buffer as containing dirty data which needs to be flushed before
9   we can commit the current transaction.
10   </p><p>
11
12   The buffer is placed on the transaction's data list and is marked as
13   belonging to the transaction.
14   </p><p>
15
16   Returns error number or 0 on success.
17   </p><p>
18
19   <code class="function">journal_dirty_data</code> can be called via page_launder-&gt;ext3_writepage
20   by kswapd.
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-journal-get-undo-access.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="functions.html#transaction_level">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-journal-dirty-metadata.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">journal_get_undo_access</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">journal_dirty_metadata</span></td></tr></table></div></body></html>
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