Differential D54489 Diff 168998 sys/compat/linuxkpi/common/include/linux/spinlock.h

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Show First 20 Lines • Show All 172 Lines • ▼ Show 20 Lines	_atomic_dec_and_lock_irqsave(atomic_t cnt, spinlock_t lock,

spin_lock_irqsave(lock, *flags);		spin_lock_irqsave(lock, *flags);
if (atomic_dec_and_test(cnt))		if (atomic_dec_and_test(cnt))
return (1);		return (1);
spin_unlock_irqrestore(lock, *flags);		spin_unlock_irqrestore(lock, *flags);
return (0);		return (0);
}		}

		/*
		* struct raw_spinlock
		*/

		typedef struct raw_spinlock {
		struct mtx lock;
		} raw_spinlock_t;

		#define raw_spin_lock_init(rlock) \
		mtx_init(&(rlock)->lock, spin_lock_name("lnxspin_raw"), \
		NULL, MTX_DEF \| MTX_NOWITNESS \| MTX_NEW)

		#define raw_spin_lock(rl) spin_lock(&(rl)->lock)
		#define raw_spin_trylock(rl) spin_trylock(&(rl)->lock)
		#define raw_spin_unlock(rl) spin_unlock(&(rl)->lock)

		#define raw_spin_lock_irqsave(rl, f) spin_lock_irqsave(&(rl)->lock, (f))
		#define raw_spin_trylock_irqsave(rl, f) spin_trylock_irqsave(&(rl)->lock, (f))
		#define raw_spin_unlock_irqrestore(rl, f) spin_unlock_irqrestore(&(rl)->lock, (f))

#endif /* _LINUXKPI_LINUX_SPINLOCK_H_ */		#endif /* _LINUXKPI_LINUX_SPINLOCK_H_ */