1 #ifndef __LINUX_SPINLOCK_TYPES_UP_H
2 #define __LINUX_SPINLOCK_TYPES_UP_H
3 
4 #ifndef __LINUX_SPINLOCK_TYPES_H
5 # error "please don't include this file directly"
6 #endif
7 
8 /*
9  * include/linux/spinlock_types_up.h - spinlock type definitions for UP
10  *
11  * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
12  * Released under the General Public License (GPL).
13  */
14 
15 #ifdef CONFIG_DEBUG_SPINLOCK
16 
17 typedef struct {
18 	volatile unsigned int slock;
19 } arch_spinlock_t;
20 
21 #define __ARCH_SPIN_LOCK_UNLOCKED { 1 }
22 
23 #else
24 
25 typedef struct { } arch_spinlock_t;
26 
27 #define __ARCH_SPIN_LOCK_UNLOCKED { }
28 
29 #endif
30 
31 typedef struct {
32 	/* no debug version on UP */
33 } arch_rwlock_t;
34 
35 #define __ARCH_RW_LOCK_UNLOCKED { }
36 
37 #endif /* __LINUX_SPINLOCK_TYPES_UP_H */
38