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Edit File: spinlock_api_up.h

#ifndef __LINUX_SPINLOCK_API_UP_H #define __LINUX_SPINLOCK_API_UP_H #ifndef __LINUX_SPINLOCK_H # error "please don't include this file directly" #endif /* * include/linux/spinlock_api_up.h * * spinlock API implementation on UP-nondebug (inlined implementation) * * portions Copyright 2005, Red Hat, Inc., Ingo Molnar * Released under the General Public License (GPL). */ #define in_lock_functions(ADDR) 0 #define assert_raw_spin_locked(lock) do { (void)(lock); } while (0) /* * In the UP-nondebug case there's no real locking going on, so the * only thing we have to do is to keep the preempt counts and irq * flags straight, to suppress compiler warnings of unused lock * variables, and to add the proper checker annotations: */ #define ___LOCK(lock) \ do { __acquire(lock); (void)(lock); } while (0) #define __LOCK(lock) \ do { preempt_disable(); ___LOCK(lock); } while (0) #define __LOCK_BH(lock) \ do { __local_bh_disable_ip(_THIS_IP_, SOFTIRQ_LOCK_OFFSET); ___LOCK(lock); } while (0) #define __LOCK_IRQ(lock) \ do { local_irq_disable(); __LOCK(lock); } while (0) #define __LOCK_IRQSAVE(lock, flags) \ do { local_irq_save(flags); __LOCK(lock); } while (0) #define ___UNLOCK(lock) \ do { __release(lock); (void)(lock); } while (0) #define __UNLOCK(lock) \ do { preempt_enable(); ___UNLOCK(lock); } while (0) #define __UNLOCK_BH(lock) \ do { __local_bh_enable_ip(_THIS_IP_, SOFTIRQ_LOCK_OFFSET); \ ___UNLOCK(lock); } while (0) #define __UNLOCK_IRQ(lock) \ do { local_irq_enable(); __UNLOCK(lock); } while (0) #define __UNLOCK_IRQRESTORE(lock, flags) \ do { local_irq_restore(flags); __UNLOCK(lock); } while (0) #define _raw_spin_lock(lock) __LOCK(lock) #define _raw_spin_lock_nested(lock, subclass) __LOCK(lock) #define _raw_read_lock(lock) __LOCK(lock) #define _raw_write_lock(lock) __LOCK(lock) #define _raw_spin_lock_bh(lock) __LOCK_BH(lock) #define _raw_read_lock_bh(lock) __LOCK_BH(lock) #define _raw_write_lock_bh(lock) __LOCK_BH(lock) #define _raw_spin_lock_irq(lock) __LOCK_IRQ(lock) #define _raw_read_lock_irq(lock) __LOCK_IRQ(lock) #define _raw_write_lock_irq(lock) __LOCK_IRQ(lock) #define _raw_spin_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) #define _raw_read_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) #define _raw_write_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) #define _raw_spin_trylock(lock) ({ __LOCK(lock); 1; }) #define _raw_read_trylock(lock) ({ __LOCK(lock); 1; }) #define _raw_write_trylock(lock) ({ __LOCK(lock); 1; }) #define _raw_spin_trylock_bh(lock) ({ __LOCK_BH(lock); 1; }) #define _raw_spin_unlock(lock) __UNLOCK(lock) #define _raw_read_unlock(lock) __UNLOCK(lock) #define _raw_write_unlock(lock) __UNLOCK(lock) #define _raw_spin_unlock_bh(lock) __UNLOCK_BH(lock) #define _raw_write_unlock_bh(lock) __UNLOCK_BH(lock) #define _raw_read_unlock_bh(lock) __UNLOCK_BH(lock) #define _raw_spin_unlock_irq(lock) __UNLOCK_IRQ(lock) #define _raw_read_unlock_irq(lock) __UNLOCK_IRQ(lock) #define _raw_write_unlock_irq(lock) __UNLOCK_IRQ(lock) #define _raw_spin_unlock_irqrestore(lock, flags) \ __UNLOCK_IRQRESTORE(lock, flags) #define _raw_read_unlock_irqrestore(lock, flags) \ __UNLOCK_IRQRESTORE(lock, flags) #define _raw_write_unlock_irqrestore(lock, flags) \ __UNLOCK_IRQRESTORE(lock, flags) #endif /* __LINUX_SPINLOCK_API_UP_H */