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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 12:02:01 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 12:02:01 -0500
commit8f0ddf91f2aeb09602373e400cf8b403e9017210 (patch)
treeb907c35c79caadafff6ad46a91614e30afd2f967 /include/linux/spinlock_up.h
parent050cbb09dac0402672edeaeac06094ef8ff1749a (diff)
parentb5f91da0a6973bb6f9ff3b91b0e92c0773a458f3 (diff)
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) clockevents: Convert to raw_spinlock clockevents: Make tick_device_lock static debugobjects: Convert to raw_spinlocks perf_event: Convert to raw_spinlock hrtimers: Convert to raw_spinlocks genirq: Convert irq_desc.lock to raw_spinlock smp: Convert smplocks to raw_spinlocks rtmutes: Convert rtmutex.lock to raw_spinlock sched: Convert pi_lock to raw_spinlock sched: Convert cpupri lock to raw_spinlock sched: Convert rt_runtime_lock to raw_spinlock sched: Convert rq->lock to raw_spinlock plist: Make plist debugging raw_spinlock aware bkl: Fixup core_lock fallout locking: Cleanup the name space completely locking: Further name space cleanups alpha: Fix fallout from locking changes locking: Implement new raw_spinlock locking: Convert raw_rwlock functions to arch_rwlock locking: Convert raw_rwlock to arch_rwlock ...
Diffstat (limited to 'include/linux/spinlock_up.h')
-rw-r--r--include/linux/spinlock_up.h42
1 files changed, 21 insertions, 21 deletions
diff --git a/include/linux/spinlock_up.h b/include/linux/spinlock_up.h
index d4841ed8215b..b14f6a91e19f 100644
--- a/include/linux/spinlock_up.h
+++ b/include/linux/spinlock_up.h
@@ -18,21 +18,21 @@
18 */ 18 */
19 19
20#ifdef CONFIG_DEBUG_SPINLOCK 20#ifdef CONFIG_DEBUG_SPINLOCK
21#define __raw_spin_is_locked(x) ((x)->slock == 0) 21#define arch_spin_is_locked(x) ((x)->slock == 0)
22 22
23static inline void __raw_spin_lock(raw_spinlock_t *lock) 23static inline void arch_spin_lock(arch_spinlock_t *lock)
24{ 24{
25 lock->slock = 0; 25 lock->slock = 0;
26} 26}
27 27
28static inline void 28static inline void
29__raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) 29arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
30{ 30{
31 local_irq_save(flags); 31 local_irq_save(flags);
32 lock->slock = 0; 32 lock->slock = 0;
33} 33}
34 34
35static inline int __raw_spin_trylock(raw_spinlock_t *lock) 35static inline int arch_spin_trylock(arch_spinlock_t *lock)
36{ 36{
37 char oldval = lock->slock; 37 char oldval = lock->slock;
38 38
@@ -41,7 +41,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
41 return oldval > 0; 41 return oldval > 0;
42} 42}
43 43
44static inline void __raw_spin_unlock(raw_spinlock_t *lock) 44static inline void arch_spin_unlock(arch_spinlock_t *lock)
45{ 45{
46 lock->slock = 1; 46 lock->slock = 1;
47} 47}
@@ -49,28 +49,28 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
49/* 49/*
50 * Read-write spinlocks. No debug version. 50 * Read-write spinlocks. No debug version.
51 */ 51 */
52#define __raw_read_lock(lock) do { (void)(lock); } while (0) 52#define arch_read_lock(lock) do { (void)(lock); } while (0)
53#define __raw_write_lock(lock) do { (void)(lock); } while (0) 53#define arch_write_lock(lock) do { (void)(lock); } while (0)
54#define __raw_read_trylock(lock) ({ (void)(lock); 1; }) 54#define arch_read_trylock(lock) ({ (void)(lock); 1; })
55#define __raw_write_trylock(lock) ({ (void)(lock); 1; }) 55#define arch_write_trylock(lock) ({ (void)(lock); 1; })
56#define __raw_read_unlock(lock) do { (void)(lock); } while (0) 56#define arch_read_unlock(lock) do { (void)(lock); } while (0)
57#define __raw_write_unlock(lock) do { (void)(lock); } while (0) 57#define arch_write_unlock(lock) do { (void)(lock); } while (0)
58 58
59#else /* DEBUG_SPINLOCK */ 59#else /* DEBUG_SPINLOCK */
60#define __raw_spin_is_locked(lock) ((void)(lock), 0) 60#define arch_spin_is_locked(lock) ((void)(lock), 0)
61/* for sched.c and kernel_lock.c: */ 61/* for sched.c and kernel_lock.c: */
62# define __raw_spin_lock(lock) do { (void)(lock); } while (0) 62# define arch_spin_lock(lock) do { (void)(lock); } while (0)
63# define __raw_spin_lock_flags(lock, flags) do { (void)(lock); } while (0) 63# define arch_spin_lock_flags(lock, flags) do { (void)(lock); } while (0)
64# define __raw_spin_unlock(lock) do { (void)(lock); } while (0) 64# define arch_spin_unlock(lock) do { (void)(lock); } while (0)
65# define __raw_spin_trylock(lock) ({ (void)(lock); 1; }) 65# define arch_spin_trylock(lock) ({ (void)(lock); 1; })
66#endif /* DEBUG_SPINLOCK */ 66#endif /* DEBUG_SPINLOCK */
67 67
68#define __raw_spin_is_contended(lock) (((void)(lock), 0)) 68#define arch_spin_is_contended(lock) (((void)(lock), 0))
69 69
70#define __raw_read_can_lock(lock) (((void)(lock), 1)) 70#define arch_read_can_lock(lock) (((void)(lock), 1))
71#define __raw_write_can_lock(lock) (((void)(lock), 1)) 71#define arch_write_can_lock(lock) (((void)(lock), 1))
72 72
73#define __raw_spin_unlock_wait(lock) \ 73#define arch_spin_unlock_wait(lock) \
74 do { cpu_relax(); } while (__raw_spin_is_locked(lock)) 74 do { cpu_relax(); } while (arch_spin_is_locked(lock))
75 75
76#endif /* __LINUX_SPINLOCK_UP_H */ 76#endif /* __LINUX_SPINLOCK_UP_H */