b7d39aff91
Expose the new lock protection lock. This can be used to annotate places where we take multiple locks of the same class and avoid deadlocks by always taking another (top-level) lock first. NOTE: we're still bound to the MAX_LOCK_DEPTH (48) limit. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
#ifndef __LINUX_SPINLOCK_API_SMP_H
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#define __LINUX_SPINLOCK_API_SMP_H
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#ifndef __LINUX_SPINLOCK_H
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# error "please don't include this file directly"
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#endif
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/*
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* include/linux/spinlock_api_smp.h
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*
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* spinlock API declarations on SMP (and debug)
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* (implemented in kernel/spinlock.c)
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*
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* portions Copyright 2005, Red Hat, Inc., Ingo Molnar
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* Released under the General Public License (GPL).
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*/
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int in_lock_functions(unsigned long addr);
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#define assert_spin_locked(x) BUG_ON(!spin_is_locked(x))
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void __lockfunc _spin_lock(spinlock_t *lock) __acquires(lock);
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void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass)
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__acquires(lock);
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void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, struct lockdep_map *map)
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__acquires(lock);
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void __lockfunc _read_lock(rwlock_t *lock) __acquires(lock);
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void __lockfunc _write_lock(rwlock_t *lock) __acquires(lock);
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void __lockfunc _spin_lock_bh(spinlock_t *lock) __acquires(lock);
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void __lockfunc _read_lock_bh(rwlock_t *lock) __acquires(lock);
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void __lockfunc _write_lock_bh(rwlock_t *lock) __acquires(lock);
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void __lockfunc _spin_lock_irq(spinlock_t *lock) __acquires(lock);
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void __lockfunc _read_lock_irq(rwlock_t *lock) __acquires(lock);
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void __lockfunc _write_lock_irq(rwlock_t *lock) __acquires(lock);
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unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock)
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__acquires(lock);
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unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass)
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__acquires(lock);
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unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock)
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__acquires(lock);
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unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
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__acquires(lock);
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int __lockfunc _spin_trylock(spinlock_t *lock);
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int __lockfunc _read_trylock(rwlock_t *lock);
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int __lockfunc _write_trylock(rwlock_t *lock);
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int __lockfunc _spin_trylock_bh(spinlock_t *lock);
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void __lockfunc _spin_unlock(spinlock_t *lock) __releases(lock);
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void __lockfunc _read_unlock(rwlock_t *lock) __releases(lock);
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void __lockfunc _write_unlock(rwlock_t *lock) __releases(lock);
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void __lockfunc _spin_unlock_bh(spinlock_t *lock) __releases(lock);
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void __lockfunc _read_unlock_bh(rwlock_t *lock) __releases(lock);
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void __lockfunc _write_unlock_bh(rwlock_t *lock) __releases(lock);
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void __lockfunc _spin_unlock_irq(spinlock_t *lock) __releases(lock);
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void __lockfunc _read_unlock_irq(rwlock_t *lock) __releases(lock);
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void __lockfunc _write_unlock_irq(rwlock_t *lock) __releases(lock);
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void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
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__releases(lock);
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void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
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__releases(lock);
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void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
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__releases(lock);
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#endif /* __LINUX_SPINLOCK_API_SMP_H */
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