1<html><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 V1.78.1"><link rel="home" href="index.html" title="Linux Filesystems API"><link rel="up" href="vfs.html" title="Chapter&#160;1.&#160;The Linux VFS"><link rel="prev" href="API-thaw-super.html" title="thaw_super"><link rel="next" href="API-posix-lock-file.html" title="posix_lock_file"></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">File Locks</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-thaw-super.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;1.&#160;The Linux VFS</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-posix-lock-file.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="file_locks"></a>File Locks</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="refentrytitle"><a href="API-posix-lock-file.html"><span class="phrase">posix_lock_file</span></a></span><span class="refpurpose"> &#8212; 
2  Apply a POSIX-style lock to a file
3 </span></dt><dt><span class="refentrytitle"><a href="API-posix-lock-inode-wait.html"><span class="phrase">posix_lock_inode_wait</span></a></span><span class="refpurpose"> &#8212; 
4     Apply a POSIX-style lock to a file
5 </span></dt><dt><span class="refentrytitle"><a href="API-locks-mandatory-area.html"><span class="phrase">locks_mandatory_area</span></a></span><span class="refpurpose"> &#8212; 
6     Check for a conflicting lock
7 </span></dt><dt><span class="refentrytitle"><a href="API---break-lease.html"><span class="phrase">__break_lease</span></a></span><span class="refpurpose"> &#8212; 
8     revoke all outstanding leases on file
9 </span></dt><dt><span class="refentrytitle"><a href="API-lease-get-mtime.html"><span class="phrase">lease_get_mtime</span></a></span><span class="refpurpose"> &#8212; 
10     get the last modified time of an inode
11 </span></dt><dt><span class="refentrytitle"><a href="API-generic-setlease.html"><span class="phrase">generic_setlease</span></a></span><span class="refpurpose"> &#8212; 
12     sets a lease on an open file
13 </span></dt><dt><span class="refentrytitle"><a href="API-vfs-setlease.html"><span class="phrase">vfs_setlease</span></a></span><span class="refpurpose"> &#8212; 
14     sets a lease on an open file
15 </span></dt><dt><span class="refentrytitle"><a href="API-flock-lock-inode-wait.html"><span class="phrase">flock_lock_inode_wait</span></a></span><span class="refpurpose"> &#8212; 
16     Apply a FLOCK-style lock to a file
17 </span></dt><dt><span class="refentrytitle"><a href="API-vfs-test-lock.html"><span class="phrase">vfs_test_lock</span></a></span><span class="refpurpose"> &#8212; 
18     test file byte range lock
19 </span></dt><dt><span class="refentrytitle"><a href="API-vfs-lock-file.html"><span class="phrase">vfs_lock_file</span></a></span><span class="refpurpose"> &#8212; 
20     file byte range lock
21 </span></dt><dt><span class="refentrytitle"><a href="API-posix-unblock-lock.html"><span class="phrase">posix_unblock_lock</span></a></span><span class="refpurpose"> &#8212; 
22     stop waiting for a file lock
23 </span></dt><dt><span class="refentrytitle"><a href="API-vfs-cancel-lock.html"><span class="phrase">vfs_cancel_lock</span></a></span><span class="refpurpose"> &#8212; 
24     file byte range unblock lock
25 </span></dt><dt><span class="refentrytitle"><a href="API-locks-mandatory-locked.html"><span class="phrase">locks_mandatory_locked</span></a></span><span class="refpurpose"> &#8212; 
26  Check for an active lock
27 </span></dt><dt><span class="refentrytitle"><a href="API-fcntl-getlease.html"><span class="phrase">fcntl_getlease</span></a></span><span class="refpurpose"> &#8212; 
28     Enquire what lease is currently active
29 </span></dt><dt><span class="refentrytitle"><a href="API-check-conflicting-open.html"><span class="phrase">check_conflicting_open</span></a></span><span class="refpurpose"> &#8212; 
30     see if the given dentry points to a file that has an existing open that would conflict with the desired lease.
31 </span></dt><dt><span class="refentrytitle"><a href="API-fcntl-setlease.html"><span class="phrase">fcntl_setlease</span></a></span><span class="refpurpose"> &#8212; 
32     sets a lease on an open file
33 </span></dt><dt><span class="refentrytitle"><a href="API-sys-flock.html"><span class="phrase">sys_flock</span></a></span><span class="refpurpose"> &#8212; 
34     <code class="function">flock</code> system call.
35 </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="API-thaw-super.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="vfs.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-posix-lock-file.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">thaw_super</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">posix_lock_file</span></td></tr></table></div></body></html>
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