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author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-28 14:27:57 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2009-07-28 14:27:57 +0200 |
commit | df8928ce037e5431b13220a5b16335e0d5057e61 (patch) | |
tree | 8fcfea548dcb92518bf9008397fa041691532947 /lib | |
parent | 8c6b7c11ce06f1faf124b31897de5107e6b6f676 (diff) | |
parent | 14e490462b0a7652ccd3e2db99051b0946997c90 (diff) | |
download | lwn-df8928ce037e5431b13220a5b16335e0d5057e61.tar.gz lwn-df8928ce037e5431b13220a5b16335e0d5057e61.zip |
Merge branch 'rt/semaphore' into rt/base
Diffstat (limited to 'lib')
-rw-r--r-- | lib/rwsem-spinlock.c | 30 | ||||
-rw-r--r-- | lib/rwsem.c | 30 |
2 files changed, 30 insertions, 30 deletions
diff --git a/lib/rwsem-spinlock.c b/lib/rwsem-spinlock.c index 9df3ca56db11..018dd5dc15d8 100644 --- a/lib/rwsem-spinlock.c +++ b/lib/rwsem-spinlock.c @@ -20,8 +20,8 @@ struct rwsem_waiter { /* * initialise the semaphore */ -void __init_rwsem(struct rw_semaphore *sem, const char *name, - struct lock_class_key *key) +void __init_anon_rwsem(struct rw_anon_semaphore *sem, const char *name, + struct lock_class_key *key) { #ifdef CONFIG_DEBUG_LOCK_ALLOC /* @@ -44,8 +44,8 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name, * - woken process blocks are discarded from the list after having task zeroed * - writers are only woken if wakewrite is non-zero */ -static inline struct rw_semaphore * -__rwsem_do_wake(struct rw_semaphore *sem, int wakewrite) +static inline struct rw_anon_semaphore * +__rwsem_do_wake(struct rw_anon_semaphore *sem, int wakewrite) { struct rwsem_waiter *waiter; struct task_struct *tsk; @@ -103,8 +103,8 @@ __rwsem_do_wake(struct rw_semaphore *sem, int wakewrite) /* * wake a single writer */ -static inline struct rw_semaphore * -__rwsem_wake_one_writer(struct rw_semaphore *sem) +static inline struct rw_anon_semaphore * +__rwsem_wake_one_writer(struct rw_anon_semaphore *sem) { struct rwsem_waiter *waiter; struct task_struct *tsk; @@ -125,7 +125,7 @@ __rwsem_wake_one_writer(struct rw_semaphore *sem) /* * get a read lock on the semaphore */ -void __sched __down_read(struct rw_semaphore *sem) +void __sched __down_read(struct rw_anon_semaphore *sem) { struct rwsem_waiter waiter; struct task_struct *tsk; @@ -168,7 +168,7 @@ void __sched __down_read(struct rw_semaphore *sem) /* * trylock for reading -- returns 1 if successful, 0 if contention */ -int __down_read_trylock(struct rw_semaphore *sem) +int __down_read_trylock(struct rw_anon_semaphore *sem) { unsigned long flags; int ret = 0; @@ -191,7 +191,7 @@ int __down_read_trylock(struct rw_semaphore *sem) * get a write lock on the semaphore * - we increment the waiting count anyway to indicate an exclusive lock */ -void __sched __down_write_nested(struct rw_semaphore *sem, int subclass) +void __sched __down_write_nested(struct rw_anon_semaphore *sem, int subclass) { struct rwsem_waiter waiter; struct task_struct *tsk; @@ -231,7 +231,7 @@ void __sched __down_write_nested(struct rw_semaphore *sem, int subclass) ; } -void __sched __down_write(struct rw_semaphore *sem) +void __sched __down_write(struct rw_anon_semaphore *sem) { __down_write_nested(sem, 0); } @@ -239,7 +239,7 @@ void __sched __down_write(struct rw_semaphore *sem) /* * trylock for writing -- returns 1 if successful, 0 if contention */ -int __down_write_trylock(struct rw_semaphore *sem) +int __down_write_trylock(struct rw_anon_semaphore *sem) { unsigned long flags; int ret = 0; @@ -260,7 +260,7 @@ int __down_write_trylock(struct rw_semaphore *sem) /* * release a read lock on the semaphore */ -void __up_read(struct rw_semaphore *sem) +void __up_read(struct rw_anon_semaphore *sem) { unsigned long flags; @@ -275,7 +275,7 @@ void __up_read(struct rw_semaphore *sem) /* * release a write lock on the semaphore */ -void __up_write(struct rw_semaphore *sem) +void __up_write(struct rw_anon_semaphore *sem) { unsigned long flags; @@ -292,7 +292,7 @@ void __up_write(struct rw_semaphore *sem) * downgrade a write lock into a read lock * - just wake up any readers at the front of the queue */ -void __downgrade_write(struct rw_semaphore *sem) +void __downgrade_write(struct rw_anon_semaphore *sem) { unsigned long flags; @@ -305,7 +305,7 @@ void __downgrade_write(struct rw_semaphore *sem) spin_unlock_irqrestore(&sem->wait_lock, flags); } -EXPORT_SYMBOL(__init_rwsem); +EXPORT_SYMBOL(__init_anon_rwsem); EXPORT_SYMBOL(__down_read); EXPORT_SYMBOL(__down_read_trylock); EXPORT_SYMBOL(__down_write_nested); diff --git a/lib/rwsem.c b/lib/rwsem.c index 3e3365e5665e..72eaba5e9861 100644 --- a/lib/rwsem.c +++ b/lib/rwsem.c @@ -11,8 +11,8 @@ /* * Initialize an rwsem: */ -void __init_rwsem(struct rw_semaphore *sem, const char *name, - struct lock_class_key *key) +void __init_anon_rwsem(struct rw_anon_semaphore *sem, const char *name, + struct lock_class_key *key) { #ifdef CONFIG_DEBUG_LOCK_ALLOC /* @@ -25,8 +25,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name, spin_lock_init(&sem->wait_lock); INIT_LIST_HEAD(&sem->wait_list); } - -EXPORT_SYMBOL(__init_rwsem); +EXPORT_SYMBOL(__init_anon_rwsem); struct rwsem_waiter { struct list_head list; @@ -46,8 +45,8 @@ struct rwsem_waiter { * - woken process blocks are discarded from the list after having task zeroed * - writers are only woken if downgrading is false */ -static inline struct rw_semaphore * -__rwsem_do_wake(struct rw_semaphore *sem, int downgrading) +static inline struct rw_anon_semaphore * +__rwsem_do_wake(struct rw_anon_semaphore *sem, int downgrading) { struct rwsem_waiter *waiter; struct task_struct *tsk; @@ -146,9 +145,9 @@ __rwsem_do_wake(struct rw_semaphore *sem, int downgrading) /* * wait for a lock to be granted */ -static struct rw_semaphore __sched * -rwsem_down_failed_common(struct rw_semaphore *sem, - struct rwsem_waiter *waiter, signed long adjustment) +static struct rw_anon_semaphore __sched * +rwsem_down_failed_common(struct rw_anon_semaphore *sem, + struct rwsem_waiter *waiter, signed long adjustment) { struct task_struct *tsk = current; signed long count; @@ -187,8 +186,8 @@ rwsem_down_failed_common(struct rw_semaphore *sem, /* * wait for the read lock to be granted */ -asmregparm struct rw_semaphore __sched * -rwsem_down_read_failed(struct rw_semaphore *sem) +asmregparm struct rw_anon_semaphore __sched * +rwsem_down_read_failed(struct rw_anon_semaphore *sem) { struct rwsem_waiter waiter; @@ -201,8 +200,8 @@ rwsem_down_read_failed(struct rw_semaphore *sem) /* * wait for the write lock to be granted */ -asmregparm struct rw_semaphore __sched * -rwsem_down_write_failed(struct rw_semaphore *sem) +asmregparm struct rw_anon_semaphore __sched * +rwsem_down_write_failed(struct rw_anon_semaphore *sem) { struct rwsem_waiter waiter; @@ -216,7 +215,7 @@ rwsem_down_write_failed(struct rw_semaphore *sem) * handle waking up a waiter on the semaphore * - up_read/up_write has decremented the active part of count if we come here */ -asmregparm struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem) +asmregparm struct rw_anon_semaphore *rwsem_wake(struct rw_anon_semaphore *sem) { unsigned long flags; @@ -236,7 +235,8 @@ asmregparm struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem) * - caller incremented waiting part of count and discovered it still negative * - just wake up any readers at the front of the queue */ -asmregparm struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem) +asmregparm struct rw_anon_semaphore * +rwsem_downgrade_wake(struct rw_anon_semaphore *sem) { unsigned long flags; |