1 /*-
2 * Copyright (c) 2009-2011, Juniper Networks, Inc.
3 * Copyright (c) 2015, EMC Corp.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL JUNIPER NETWORKS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 static __inline void
filemon_filemon_lock(struct filemon * filemon)32 filemon_filemon_lock(struct filemon *filemon)
33 {
34
35 sx_xlock(&filemon->lock);
36 }
37
38 static __inline void
filemon_filemon_unlock(struct filemon * filemon)39 filemon_filemon_unlock(struct filemon *filemon)
40 {
41
42 sx_xunlock(&filemon->lock);
43 }
44
45 static __inline void
filemon_lock_read(void)46 filemon_lock_read(void)
47 {
48
49 sx_slock(&access_lock);
50 }
51
52 static __inline void
filemon_unlock_read(void)53 filemon_unlock_read(void)
54 {
55
56 sx_sunlock(&access_lock);
57 }
58
59 static __inline void
filemon_lock_write(void)60 filemon_lock_write(void)
61 {
62
63 sx_xlock(&access_lock);
64 }
65
66 static __inline void
filemon_unlock_write(void)67 filemon_unlock_write(void)
68 {
69
70 sx_xunlock(&access_lock);
71 }
72