block: get rid of elv_insert() interface
[linux-2.6.git] / include / linux / spinlock_api_up.h
1 #ifndef __LINUX_SPINLOCK_API_UP_H
2 #define __LINUX_SPINLOCK_API_UP_H
3
4 #ifndef __LINUX_SPINLOCK_H
5 # error "please don't include this file directly"
6 #endif
7
8 /*
9  * include/linux/spinlock_api_up.h
10  *
11  * spinlock API implementation on UP-nondebug (inlined implementation)
12  *
13  * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
14  * Released under the General Public License (GPL).
15  */
16
17 #define in_lock_functions(ADDR)         0
18
19 #define assert_raw_spin_locked(lock)    do { (void)(lock); } while (0)
20
21 /*
22  * In the UP-nondebug case there's no real locking going on, so the
23  * only thing we have to do is to keep the preempt counts and irq
24  * flags straight, to suppress compiler warnings of unused lock
25  * variables, and to add the proper checker annotations:
26  */
27 #define __LOCK(lock) \
28   do { preempt_disable(); __acquire(lock); (void)(lock); } while (0)
29
30 #define __LOCK_BH(lock) \
31   do { local_bh_disable(); __LOCK(lock); } while (0)
32
33 #define __LOCK_IRQ(lock) \
34   do { local_irq_disable(); __LOCK(lock); } while (0)
35
36 #define __LOCK_IRQSAVE(lock, flags) \
37   do { local_irq_save(flags); __LOCK(lock); } while (0)
38
39 #define __UNLOCK(lock) \
40   do { preempt_enable(); __release(lock); (void)(lock); } while (0)
41
42 #define __UNLOCK_BH(lock) \
43   do { preempt_enable_no_resched(); local_bh_enable(); \
44           __release(lock); (void)(lock); } while (0)
45
46 #define __UNLOCK_IRQ(lock) \
47   do { local_irq_enable(); __UNLOCK(lock); } while (0)
48
49 #define __UNLOCK_IRQRESTORE(lock, flags) \
50   do { local_irq_restore(flags); __UNLOCK(lock); } while (0)
51
52 #define _raw_spin_lock(lock)                    __LOCK(lock)
53 #define _raw_spin_lock_nested(lock, subclass)   __LOCK(lock)
54 #define _raw_read_lock(lock)                    __LOCK(lock)
55 #define _raw_write_lock(lock)                   __LOCK(lock)
56 #define _raw_spin_lock_bh(lock)                 __LOCK_BH(lock)
57 #define _raw_read_lock_bh(lock)                 __LOCK_BH(lock)
58 #define _raw_write_lock_bh(lock)                __LOCK_BH(lock)
59 #define _raw_spin_lock_irq(lock)                __LOCK_IRQ(lock)
60 #define _raw_read_lock_irq(lock)                __LOCK_IRQ(lock)
61 #define _raw_write_lock_irq(lock)               __LOCK_IRQ(lock)
62 #define _raw_spin_lock_irqsave(lock, flags)     __LOCK_IRQSAVE(lock, flags)
63 #define _raw_read_lock_irqsave(lock, flags)     __LOCK_IRQSAVE(lock, flags)
64 #define _raw_write_lock_irqsave(lock, flags)    __LOCK_IRQSAVE(lock, flags)
65 #define _raw_spin_trylock(lock)                 ({ __LOCK(lock); 1; })
66 #define _raw_read_trylock(lock)                 ({ __LOCK(lock); 1; })
67 #define _raw_write_trylock(lock)                        ({ __LOCK(lock); 1; })
68 #define _raw_spin_trylock_bh(lock)              ({ __LOCK_BH(lock); 1; })
69 #define _raw_spin_unlock(lock)                  __UNLOCK(lock)
70 #define _raw_read_unlock(lock)                  __UNLOCK(lock)
71 #define _raw_write_unlock(lock)                 __UNLOCK(lock)
72 #define _raw_spin_unlock_bh(lock)               __UNLOCK_BH(lock)
73 #define _raw_write_unlock_bh(lock)              __UNLOCK_BH(lock)
74 #define _raw_read_unlock_bh(lock)               __UNLOCK_BH(lock)
75 #define _raw_spin_unlock_irq(lock)              __UNLOCK_IRQ(lock)
76 #define _raw_read_unlock_irq(lock)              __UNLOCK_IRQ(lock)
77 #define _raw_write_unlock_irq(lock)             __UNLOCK_IRQ(lock)
78 #define _raw_spin_unlock_irqrestore(lock, flags) \
79                                         __UNLOCK_IRQRESTORE(lock, flags)
80 #define _raw_read_unlock_irqrestore(lock, flags) \
81                                         __UNLOCK_IRQRESTORE(lock, flags)
82 #define _raw_write_unlock_irqrestore(lock, flags) \
83                                         __UNLOCK_IRQRESTORE(lock, flags)
84
85 #endif /* __LINUX_SPINLOCK_API_UP_H */