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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>User Space Memory Access</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="ch04.html" title="Chapter 4. Memory Management in Linux" /><link rel="prev" href="re139.html" title="ksize" /><link rel="next" href="re140.html" title="__copy_to_user_inatomic" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">User Space Memory Access</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re139.html">Prev</a> </td><th width="60%" align="center">Chapter 4. Memory Management in Linux</th><td width="20%" align="right"> <a accesskey="n" href="re140.html">Next</a></td></tr></table><hr /></div><div class="sect1" title="User Space Memory Access"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="id2638296"></a>User Space Memory Access</h2></div></div></div><div class="toc"><dl><dt><span class="refentrytitle"><a href="re140.html"><span>__copy_to_user_inatomic</span></a></span><span class="refpurpose"> —
Copy a block of data into user space, with less checking.
</span></dt><dt><span class="refentrytitle"><a href="re141.html"><span>__copy_to_user</span></a></span><span class="refpurpose"> —
Copy a block of data into user space, with less checking.
</span></dt><dt><span class="refentrytitle"><a href="re142.html"><span>__copy_from_user</span></a></span><span class="refpurpose"> —
Copy a block of data from user space, with less checking.
</span></dt><dt><span class="refentrytitle"><a href="re143.html"><span>strlen_user</span></a></span><span class="refpurpose"> —
Get the size of a string in user space.
</span></dt><dt><span class="refentrytitle"><a href="re144.html"><span>__strncpy_from_user</span></a></span><span class="refpurpose"> —
Copy a NUL terminated string from userspace, with less checking.
</span></dt><dt><span class="refentrytitle"><a href="re145.html"><span>strncpy_from_user</span></a></span><span class="refpurpose"> —
Copy a NUL terminated string from userspace.
</span></dt><dt><span class="refentrytitle"><a href="re146.html"><span>clear_user</span></a></span><span class="refpurpose"> —
Zero a block of memory in user space.
</span></dt><dt><span class="refentrytitle"><a href="re147.html"><span>__clear_user</span></a></span><span class="refpurpose"> —
Zero a block of memory in user space, with less checking.
</span></dt><dt><span class="refentrytitle"><a href="re148.html"><span>strnlen_user</span></a></span><span class="refpurpose"> —
Get the size of a string in user space.
</span></dt><dt><span class="refentrytitle"><a href="re149.html"><span>copy_to_user</span></a></span><span class="refpurpose"> —
Copy a block of data into user space.
</span></dt><dt><span class="refentrytitle"><a href="re150.html"><span>copy_from_user</span></a></span><span class="refpurpose"> —
Copy a block of data from user space.
</span></dt></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re139.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch04.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re140.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>ksize</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>__copy_to_user_inatomic</span></td></tr></table></div></body></html>
