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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>File Locks</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="ch01.html" title="Chapter 1. The Linux VFS" /><link rel="prev" href="re54.html" title="get_super" /><link rel="next" href="re55.html" title="posix_lock_file" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">File Locks</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re54.html">Prev</a> </td><th width="60%" align="center">Chapter 1. The Linux VFS</th><td width="20%" align="right"> <a accesskey="n" href="re55.html">Next</a></td></tr></table><hr /></div><div class="sect1" title="File Locks"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="file_locks"></a>File Locks</h2></div></div></div><div class="toc"><dl><dt><span class="refentrytitle"><a href="re55.html"><span>posix_lock_file</span></a></span><span class="refpurpose"> —
Apply a POSIX-style lock to a file
</span></dt><dt><span class="refentrytitle"><a href="re56.html"><span>posix_lock_file_wait</span></a></span><span class="refpurpose"> —
Apply a POSIX-style lock to a file
</span></dt><dt><span class="refentrytitle"><a href="re57.html"><span>locks_mandatory_area</span></a></span><span class="refpurpose"> —
Check for a conflicting lock
</span></dt><dt><span class="refentrytitle"><a href="re58.html"><span>__break_lease</span></a></span><span class="refpurpose"> —
revoke all outstanding leases on file
</span></dt><dt><span class="refentrytitle"><a href="re59.html"><span>lease_get_mtime</span></a></span><span class="refpurpose"> —
get the last modified time of an inode
</span></dt><dt><span class="refentrytitle"><a href="re60.html"><span>generic_setlease</span></a></span><span class="refpurpose"> —
sets a lease on an open file
</span></dt><dt><span class="refentrytitle"><a href="re61.html"><span>flock_lock_file_wait</span></a></span><span class="refpurpose"> —
Apply a FLOCK-style lock to a file
</span></dt><dt><span class="refentrytitle"><a href="re62.html"><span>vfs_test_lock</span></a></span><span class="refpurpose"> —
test file byte range lock
</span></dt><dt><span class="refentrytitle"><a href="re63.html"><span>vfs_lock_file</span></a></span><span class="refpurpose"> —
file byte range lock
</span></dt><dt><span class="refentrytitle"><a href="re64.html"><span>posix_unblock_lock</span></a></span><span class="refpurpose"> —
stop waiting for a file lock
</span></dt><dt><span class="refentrytitle"><a href="re65.html"><span>vfs_cancel_lock</span></a></span><span class="refpurpose"> —
file byte range unblock lock
</span></dt><dt><span class="refentrytitle"><a href="re66.html"><span>lock_may_read</span></a></span><span class="refpurpose"> —
checks that the region is free of locks
</span></dt><dt><span class="refentrytitle"><a href="re67.html"><span>lock_may_write</span></a></span><span class="refpurpose"> —
checks that the region is free of locks
</span></dt><dt><span class="refentrytitle"><a href="re68.html"><span>locks_mandatory_locked</span></a></span><span class="refpurpose"> —
Check for an active lock
</span></dt><dt><span class="refentrytitle"><a href="re69.html"><span>fcntl_getlease</span></a></span><span class="refpurpose"> —
Enquire what lease is currently active
</span></dt><dt><span class="refentrytitle"><a href="re70.html"><span>fcntl_setlease</span></a></span><span class="refpurpose"> —
sets a lease on an open file
</span></dt><dt><span class="refentrytitle"><a href="re71.html"><span>sys_flock</span></a></span><span class="refpurpose"> —
<code class="function">flock</code> system call.
</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="re54.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch01.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re55.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>get_super</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>posix_lock_file</span></td></tr></table></div></body></html>
