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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>generic_file_aio_write</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="The Linux Kernel API" /><link rel="up" href="ch04s03.html" title="More Memory Management Functions" /><link rel="prev" href="re174.html" title="__generic_file_aio_write" /><link rel="next" href="re176.html" title="try_to_release_page" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>generic_file_aio_write</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re174.html">Prev</a> </td><th width="60%" align="center">More Memory Management Functions</th><td width="20%" align="right"> <a accesskey="n" href="re176.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="generic_file_aio_write"><a id="API-generic-file-aio-write"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>generic_file_aio_write —
write data to a file
</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">ssize_t <b class="fsfunc">generic_file_aio_write </b>(</code></td><td>struct kiocb * <var class="pdparam">iocb</var>, </td></tr><tr><td> </td><td>const struct iovec * <var class="pdparam">iov</var>, </td></tr><tr><td> </td><td>unsigned long <var class="pdparam">nr_segs</var>, </td></tr><tr><td> </td><td>loff_t <var class="pdparam">pos</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2644676"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>iocb</code></em></span></dt><dd><p>
IO state structure
</p></dd><dt><span class="term"><em class="parameter"><code>iov</code></em></span></dt><dd><p>
vector with data to write
</p></dd><dt><span class="term"><em class="parameter"><code>nr_segs</code></em></span></dt><dd><p>
number of segments in the vector
</p></dd><dt><span class="term"><em class="parameter"><code>pos</code></em></span></dt><dd><p>
position in file where to write
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2644754"></a><h2>Description</h2><p>
This is a wrapper around <code class="function">__generic_file_aio_write</code> to be used by most
filesystems. It takes care of syncing the file in case of O_SYNC file
and acquires i_mutex as needed.
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