--- /dev/null
+/*
+ * Copyright (2004) Linus Torvalds
+ *
+ * Author: Zwane Mwaikambo <zwane@fsmlabs.com>
+ *
+ * Copyright (2004, 2005) Ingo Molnar
+ *
+ * This file contains the spinlock/rwlock implementations for the
+ * SMP and the DEBUG_SPINLOCK cases.
+ */
+
+#include <lwk/linkage.h>
+#include <lwk/spinlock.h>
+//#include <lwk/interrupt.h>
+#include <lwk/linux_compat.h>
+
+/*
+ * Generic declaration of the raw read_trylock() function,
+ * architectures are supposed to optimize this:
+ */
+int __lockfunc generic__raw_read_trylock(raw_rwlock_t *lock)
+{
+ __raw_read_lock(lock);
+ return 1;
+}
+EXPORT_SYMBOL(generic__raw_read_trylock);
+
+int __lockfunc _spin_trylock(spinlock_t *lock)
+{
+ if (_raw_spin_trylock(lock))
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL(_spin_trylock);
+
+int __lockfunc _read_trylock(rwlock_t *lock)
+{
+ if (_raw_read_trylock(lock))
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL(_read_trylock);
+
+int __lockfunc _write_trylock(rwlock_t *lock)
+{
+ if (_raw_write_trylock(lock))
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL(_write_trylock);
+
+void __lockfunc _read_lock(rwlock_t *lock)
+{
+ _raw_read_lock(lock);
+}
+EXPORT_SYMBOL(_read_lock);
+
+unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ _raw_spin_lock_flags(lock, &flags);
+ return flags;
+}
+EXPORT_SYMBOL(_spin_lock_irqsave);
+
+void __lockfunc _spin_lock_irq(spinlock_t *lock)
+{
+ local_irq_disable();
+ _raw_spin_lock(lock);
+}
+EXPORT_SYMBOL(_spin_lock_irq);
+
+#if 0
+void __lockfunc _spin_lock_bh(spinlock_t *lock)
+{
+ local_bh_disable();
+ _raw_spin_lock(lock);
+}
+EXPORT_SYMBOL(_spin_lock_bh);
+#endif
+
+unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ _raw_read_lock(lock);
+ return flags;
+}
+EXPORT_SYMBOL(_read_lock_irqsave);
+
+void __lockfunc _read_lock_irq(rwlock_t *lock)
+{
+ local_irq_disable();
+ _raw_read_lock(lock);
+}
+EXPORT_SYMBOL(_read_lock_irq);
+
+#if 0
+void __lockfunc _read_lock_bh(rwlock_t *lock)
+{
+ local_bh_disable();
+ _raw_read_lock(lock);
+}
+EXPORT_SYMBOL(_read_lock_bh);
+#endif
+
+unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ _raw_write_lock(lock);
+ return flags;
+}
+EXPORT_SYMBOL(_write_lock_irqsave);
+
+void __lockfunc _write_lock_irq(rwlock_t *lock)
+{
+ local_irq_disable();
+ _raw_write_lock(lock);
+}
+EXPORT_SYMBOL(_write_lock_irq);
+
+#if 0
+void __lockfunc _write_lock_bh(rwlock_t *lock)
+{
+ local_bh_disable();
+ _raw_write_lock(lock);
+}
+EXPORT_SYMBOL(_write_lock_bh);
+#endif
+
+void __lockfunc _spin_lock(spinlock_t *lock)
+{
+ _raw_spin_lock(lock);
+}
+
+EXPORT_SYMBOL(_spin_lock);
+
+void __lockfunc _write_lock(rwlock_t *lock)
+{
+ _raw_write_lock(lock);
+}
+
+EXPORT_SYMBOL(_write_lock);
+
+void __lockfunc _spin_unlock(spinlock_t *lock)
+{
+ _raw_spin_unlock(lock);
+}
+EXPORT_SYMBOL(_spin_unlock);
+
+void __lockfunc _write_unlock(rwlock_t *lock)
+{
+ _raw_write_unlock(lock);
+}
+EXPORT_SYMBOL(_write_unlock);
+
+void __lockfunc _read_unlock(rwlock_t *lock)
+{
+ _raw_read_unlock(lock);
+}
+EXPORT_SYMBOL(_read_unlock);
+
+void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
+{
+ _raw_spin_unlock(lock);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(_spin_unlock_irqrestore);
+
+void __lockfunc _spin_unlock_irq(spinlock_t *lock)
+{
+ _raw_spin_unlock(lock);
+ local_irq_enable();
+}
+EXPORT_SYMBOL(_spin_unlock_irq);
+
+#if 0
+void __lockfunc _spin_unlock_bh(spinlock_t *lock)
+{
+ _raw_spin_unlock(lock);
+ local_bh_enable();
+}
+EXPORT_SYMBOL(_spin_unlock_bh);
+#endif
+
+void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+{
+ _raw_read_unlock(lock);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(_read_unlock_irqrestore);
+
+void __lockfunc _read_unlock_irq(rwlock_t *lock)
+{
+ _raw_read_unlock(lock);
+ local_irq_enable();
+}
+EXPORT_SYMBOL(_read_unlock_irq);
+
+#if 0
+void __lockfunc _read_unlock_bh(rwlock_t *lock)
+{
+ _raw_read_unlock(lock);
+ local_bh_enable();
+}
+EXPORT_SYMBOL(_read_unlock_bh);
+#endif
+
+void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+{
+ _raw_write_unlock(lock);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(_write_unlock_irqrestore);
+
+void __lockfunc _write_unlock_irq(rwlock_t *lock)
+{
+ _raw_write_unlock(lock);
+ local_irq_enable();
+}
+EXPORT_SYMBOL(_write_unlock_irq);
+
+#if 0
+void __lockfunc _write_unlock_bh(rwlock_t *lock)
+{
+ _raw_write_unlock(lock);
+ local_bh_enable();
+}
+EXPORT_SYMBOL(_write_unlock_bh);
+#endif
+
+#if 0
+int __lockfunc _spin_trylock_bh(spinlock_t *lock)
+{
+ local_bh_disable();
+ if (_raw_spin_trylock(lock))
+ return 1;
+ local_bh_enable();
+ return 0;
+}
+EXPORT_SYMBOL(_spin_trylock_bh);
+#endif
+
+int in_lock_functions(unsigned long addr)
+{
+ /* Linker adds these: start and end of __lockfunc functions */
+ extern char __lock_text_start[], __lock_text_end[];
+
+ return addr >= (unsigned long)__lock_text_start
+ && addr < (unsigned long)__lock_text_end;
+}
+EXPORT_SYMBOL(in_lock_functions);
