void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
__releases(lock);
+/*
+ * We inline the unlock functions in the nondebug case:
+ */
+#if !defined(CONFIG_DEBUG_SPINLOCK) && !defined(CONFIG_PREEMPT)
+#define __always_inline__spin_unlock
+#define __always_inline__read_unlock
+#define __always_inline__write_unlock
+#define __always_inline__spin_unlock_irq
+#define __always_inline__read_unlock_irq
+#define __always_inline__write_unlock_irq
+#endif
+
+#ifndef CONFIG_DEBUG_SPINLOCK
+#ifndef CONFIG_GENERIC_LOCKBREAK
+
+#ifdef __always_inline__spin_lock
+#define _spin_lock(lock) __spin_lock(lock)
+#endif
+
+#ifdef __always_inline__read_lock
+#define _read_lock(lock) __read_lock(lock)
+#endif
+
+#ifdef __always_inline__write_lock
+#define _write_lock(lock) __write_lock(lock)
+#endif
+
+#ifdef __always_inline__spin_lock_bh
+#define _spin_lock_bh(lock) __spin_lock_bh(lock)
+#endif
+
+#ifdef __always_inline__read_lock_bh
+#define _read_lock_bh(lock) __read_lock_bh(lock)
+#endif
+
+#ifdef __always_inline__write_lock_bh
+#define _write_lock_bh(lock) __write_lock_bh(lock)
+#endif
+
+#ifdef __always_inline__spin_lock_irq
+#define _spin_lock_irq(lock) __spin_lock_irq(lock)
+#endif
+
+#ifdef __always_inline__read_lock_irq
+#define _read_lock_irq(lock) __read_lock_irq(lock)
+#endif
+
+#ifdef __always_inline__write_lock_irq
+#define _write_lock_irq(lock) __write_lock_irq(lock)
+#endif
+
+#ifdef __always_inline__spin_lock_irqsave
+#define _spin_lock_irqsave(lock) __spin_lock_irqsave(lock)
+#endif
+
+#ifdef __always_inline__read_lock_irqsave
+#define _read_lock_irqsave(lock) __read_lock_irqsave(lock)
+#endif
+
+#ifdef __always_inline__write_lock_irqsave
+#define _write_lock_irqsave(lock) __write_lock_irqsave(lock)
+#endif
+
+#endif /* !CONFIG_GENERIC_LOCKBREAK */
+
+#ifdef __always_inline__spin_trylock
+#define _spin_trylock(lock) __spin_trylock(lock)
+#endif
+
+#ifdef __always_inline__read_trylock
+#define _read_trylock(lock) __read_trylock(lock)
+#endif
+
+#ifdef __always_inline__write_trylock
+#define _write_trylock(lock) __write_trylock(lock)
+#endif
+
+#ifdef __always_inline__spin_trylock_bh
+#define _spin_trylock_bh(lock) __spin_trylock_bh(lock)
+#endif
+
+#ifdef __always_inline__spin_unlock
+#define _spin_unlock(lock) __spin_unlock(lock)
+#endif
+
+#ifdef __always_inline__read_unlock
+#define _read_unlock(lock) __read_unlock(lock)
+#endif
+
+#ifdef __always_inline__write_unlock
+#define _write_unlock(lock) __write_unlock(lock)
+#endif
+
+#ifdef __always_inline__spin_unlock_bh
+#define _spin_unlock_bh(lock) __spin_unlock_bh(lock)
+#endif
+
+#ifdef __always_inline__read_unlock_bh
+#define _read_unlock_bh(lock) __read_unlock_bh(lock)
+#endif
+
+#ifdef __always_inline__write_unlock_bh
+#define _write_unlock_bh(lock) __write_unlock_bh(lock)
+#endif
+
+#ifdef __always_inline__spin_unlock_irq
+#define _spin_unlock_irq(lock) __spin_unlock_irq(lock)
+#endif
+
+#ifdef __always_inline__read_unlock_irq
+#define _read_unlock_irq(lock) __read_unlock_irq(lock)
+#endif
+
+#ifdef __always_inline__write_unlock_irq
+#define _write_unlock_irq(lock) __write_unlock_irq(lock)
+#endif
+
+#ifdef __always_inline__spin_unlock_irqrestore
+#define _spin_unlock_irqrestore(lock, flags) __spin_unlock_irqrestore(lock, flags)
+#endif
+
+#ifdef __always_inline__read_unlock_irqrestore
+#define _read_unlock_irqrestore(lock, flags) __read_unlock_irqrestore(lock, flags)
+#endif
+
+#ifdef __always_inline__write_unlock_irqrestore
+#define _write_unlock_irqrestore(lock, flags) __write_unlock_irqrestore(lock, flags)
+#endif
+
+#endif /* CONFIG_DEBUG_SPINLOCK */
+
+static inline int __spin_trylock(spinlock_t *lock)
+{
+ preempt_disable();
+ if (_raw_spin_trylock(lock)) {
+ spin_acquire(&lock->dep_map, 0, 1, _RET_IP_);
+ return 1;
+ }
+ preempt_enable();
+ return 0;
+}
+
+static inline int __read_trylock(rwlock_t *lock)
+{
+ preempt_disable();
+ if (_raw_read_trylock(lock)) {
+ rwlock_acquire_read(&lock->dep_map, 0, 1, _RET_IP_);
+ return 1;
+ }
+ preempt_enable();
+ return 0;
+}
+
+static inline int __write_trylock(rwlock_t *lock)
+{
+ preempt_disable();
+ if (_raw_write_trylock(lock)) {
+ rwlock_acquire(&lock->dep_map, 0, 1, _RET_IP_);
+ return 1;
+ }
+ preempt_enable();
+ return 0;
+}
+
+/*
+ * If lockdep is enabled then we use the non-preemption spin-ops
+ * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
+ * not re-enabled during lock-acquire (which the preempt-spin-ops do):
+ */
+#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
+
+static inline void __read_lock(rwlock_t *lock)
+{
+ preempt_disable();
+ rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
+}
+
+static inline unsigned long __spin_lock_irqsave(spinlock_t *lock)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ preempt_disable();
+ spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ /*
+ * On lockdep we dont want the hand-coded irq-enable of
+ * _raw_spin_lock_flags() code, because lockdep assumes
+ * that interrupts are not re-enabled during lock-acquire:
+ */
+#ifdef CONFIG_LOCKDEP
+ LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
+#else
+ _raw_spin_lock_flags(lock, &flags);
+#endif
+ return flags;
+}
+
+static inline void __spin_lock_irq(spinlock_t *lock)
+{
+ local_irq_disable();
+ preempt_disable();
+ spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
+}
+
+static inline void __spin_lock_bh(spinlock_t *lock)
+{
+ local_bh_disable();
+ preempt_disable();
+ spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
+}
+
+static inline unsigned long __read_lock_irqsave(rwlock_t *lock)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ preempt_disable();
+ rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED_FLAGS(lock, _raw_read_trylock, _raw_read_lock,
+ _raw_read_lock_flags, &flags);
+ return flags;
+}
+
+static inline void __read_lock_irq(rwlock_t *lock)
+{
+ local_irq_disable();
+ preempt_disable();
+ rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
+}
+
+static inline void __read_lock_bh(rwlock_t *lock)
+{
+ local_bh_disable();
+ preempt_disable();
+ rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
+}
+
+static inline unsigned long __write_lock_irqsave(rwlock_t *lock)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ preempt_disable();
+ rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED_FLAGS(lock, _raw_write_trylock, _raw_write_lock,
+ _raw_write_lock_flags, &flags);
+ return flags;
+}
+
+static inline void __write_lock_irq(rwlock_t *lock)
+{
+ local_irq_disable();
+ preempt_disable();
+ rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
+}
+
+static inline void __write_lock_bh(rwlock_t *lock)
+{
+ local_bh_disable();
+ preempt_disable();
+ rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
+}
+
+static inline void __spin_lock(spinlock_t *lock)
+{
+ preempt_disable();
+ spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
+}
+
+static inline void __write_lock(rwlock_t *lock)
+{
+ preempt_disable();
+ rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
+}
+
+#endif /* CONFIG_PREEMPT */
+
+static inline void __spin_unlock(spinlock_t *lock)
+{
+ spin_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_spin_unlock(lock);
+ preempt_enable();
+}
+
+static inline void __write_unlock(rwlock_t *lock)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_write_unlock(lock);
+ preempt_enable();
+}
+
+static inline void __read_unlock(rwlock_t *lock)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_read_unlock(lock);
+ preempt_enable();
+}
+
+static inline void __spin_unlock_irqrestore(spinlock_t *lock,
+ unsigned long flags)
+{
+ spin_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_spin_unlock(lock);
+ local_irq_restore(flags);
+ preempt_enable();
+}
+
+static inline void __spin_unlock_irq(spinlock_t *lock)
+{
+ spin_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_spin_unlock(lock);
+ local_irq_enable();
+ preempt_enable();
+}
+
+static inline void __spin_unlock_bh(spinlock_t *lock)
+{
+ spin_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_spin_unlock(lock);
+ preempt_enable_no_resched();
+ local_bh_enable_ip((unsigned long)__builtin_return_address(0));
+}
+
+static inline void __read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_read_unlock(lock);
+ local_irq_restore(flags);
+ preempt_enable();
+}
+
+static inline void __read_unlock_irq(rwlock_t *lock)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_read_unlock(lock);
+ local_irq_enable();
+ preempt_enable();
+}
+
+static inline void __read_unlock_bh(rwlock_t *lock)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_read_unlock(lock);
+ preempt_enable_no_resched();
+ local_bh_enable_ip((unsigned long)__builtin_return_address(0));
+}
+
+static inline void __write_unlock_irqrestore(rwlock_t *lock,
+ unsigned long flags)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_write_unlock(lock);
+ local_irq_restore(flags);
+ preempt_enable();
+}
+
+static inline void __write_unlock_irq(rwlock_t *lock)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_write_unlock(lock);
+ local_irq_enable();
+ preempt_enable();
+}
+
+static inline void __write_unlock_bh(rwlock_t *lock)
+{
+ rwlock_release(&lock->dep_map, 1, _RET_IP_);
+ _raw_write_unlock(lock);
+ preempt_enable_no_resched();
+ local_bh_enable_ip((unsigned long)__builtin_return_address(0));
+}
+
+static inline int __spin_trylock_bh(spinlock_t *lock)
+{
+ local_bh_disable();
+ preempt_disable();
+ if (_raw_spin_trylock(lock)) {
+ spin_acquire(&lock->dep_map, 0, 1, _RET_IP_);
+ return 1;
+ }
+ preempt_enable_no_resched();
+ local_bh_enable_ip((unsigned long)__builtin_return_address(0));
+ return 0;
+}
+
#endif /* __LINUX_SPINLOCK_API_SMP_H */
git.openpandora.org / pandora-kernel.git / blobdiff