spinlock.h File Reference

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Macros
#define	arch_spin_is_locked(x)   ((x)->lock <= 0)
#define	arch_spin_lock_flags(lock, flags)   arch_spin_lock(lock)
#define	arch_spin_unlock_wait(x)   do { while (arch_spin_is_locked(x)) cpu_relax(); } while (0)
#define	arch_read_can_lock(x)   ((x)->lock > 0)
#define	arch_write_can_lock(x)   ((x)->lock == RW_LOCK_BIAS)
#define	arch_read_lock_flags(lock, flags)   arch_read_lock(lock)
#define	arch_write_lock_flags(lock, flags)   arch_write_lock(lock)
#define	arch_spin_relax(lock)   cpu_relax()
#define	arch_read_relax(lock)   cpu_relax()
#define	arch_write_relax(lock)   cpu_relax()

Macro Definition Documentation

#define arch_read_can_lock

(

x

)

((x)->lock > 0)

read_can_lock - would read_trylock() succeed? : the rwlock in question.

Definition at line 103 of file spinlock.h.

#define arch_read_lock_flags	(		lock,
			flags
	)		arch_read_lock(lock)

Definition at line 219 of file spinlock.h.

#define arch_read_relax

(

lock

)

cpu_relax()

Definition at line 223 of file spinlock.h.

#define arch_spin_is_locked

(

x

)

((x)->lock <= 0)

Definition at line 26 of file spinlock.h.

#define arch_spin_lock_flags	(		lock,
			flags
	)		arch_spin_lock(lock)

Definition at line 27 of file spinlock.h.

#define arch_spin_relax

(

lock

)

cpu_relax()

Definition at line 222 of file spinlock.h.

#define arch_spin_unlock_wait

(

x

)

do { while (arch_spin_is_locked(x)) cpu_relax(); } while (0)

Definition at line 28 of file spinlock.h.

#define arch_write_can_lock

(

x

)

((x)->lock == RW_LOCK_BIAS)

write_can_lock - would write_trylock() succeed? : the rwlock in question.

Definition at line 109 of file spinlock.h.

#define arch_write_lock_flags	(		lock,
			flags
	)		arch_write_lock(lock)

Definition at line 220 of file spinlock.h.

#define arch_write_relax

(

lock

)

cpu_relax()

Definition at line 224 of file spinlock.h.