xref: /dragonfly/sys/dev/drm/include/linux/mutex.h (revision 2581d4aa)
1*2581d4aaSFrançois Tigeot /*
2*2581d4aaSFrançois Tigeot  * Copyright (c) 2014 François Tigeot
3*2581d4aaSFrançois Tigeot  * All rights reserved.
4*2581d4aaSFrançois Tigeot  *
5*2581d4aaSFrançois Tigeot  * Redistribution and use in source and binary forms, with or without
6*2581d4aaSFrançois Tigeot  * modification, are permitted provided that the following conditions
7*2581d4aaSFrançois Tigeot  * are met:
8*2581d4aaSFrançois Tigeot  * 1. Redistributions of source code must retain the above copyright
9*2581d4aaSFrançois Tigeot  *    notice unmodified, this list of conditions, and the following
10*2581d4aaSFrançois Tigeot  *    disclaimer.
11*2581d4aaSFrançois Tigeot  * 2. Redistributions in binary form must reproduce the above copyright
12*2581d4aaSFrançois Tigeot  *    notice, this list of conditions and the following disclaimer in the
13*2581d4aaSFrançois Tigeot  *    documentation and/or other materials provided with the distribution.
14*2581d4aaSFrançois Tigeot  *
15*2581d4aaSFrançois Tigeot  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16*2581d4aaSFrançois Tigeot  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17*2581d4aaSFrançois Tigeot  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18*2581d4aaSFrançois Tigeot  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19*2581d4aaSFrançois Tigeot  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20*2581d4aaSFrançois Tigeot  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21*2581d4aaSFrançois Tigeot  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22*2581d4aaSFrançois Tigeot  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23*2581d4aaSFrançois Tigeot  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24*2581d4aaSFrançois Tigeot  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25*2581d4aaSFrançois Tigeot  */
26*2581d4aaSFrançois Tigeot 
27*2581d4aaSFrançois Tigeot #ifndef _LINUX_MUTEX_H_
28*2581d4aaSFrançois Tigeot #define _LINUX_MUTEX_H_
29*2581d4aaSFrançois Tigeot 
30*2581d4aaSFrançois Tigeot #include <sys/lock.h>
31*2581d4aaSFrançois Tigeot 
32*2581d4aaSFrançois Tigeot #define mutex_is_locked(lock) (lockcount(lock) != 0)
33*2581d4aaSFrançois Tigeot 
34*2581d4aaSFrançois Tigeot #endif	/* _LINUX_MUTEX_H_ */
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