atomic.h File Reference

#include <linux/types.h>
#include <asm/cmpxchg.h>

Go to the source code of this file.

Macros
#define	_atomic_spin_lock_irqsave(l, f)   do { local_irq_save(f); } while (0)
#define	_atomic_spin_unlock_irqrestore(l, f)   do { local_irq_restore(f); } while (0)
#define	atomic_cmpxchg(v, o, n)   (cmpxchg(&((v)->counter), (o), (n)))
#define	atomic_xchg(v, new)   (xchg(&((v)->counter), new))
#define	atomic_add(i, v)   ((void)(__atomic_add_return( (i),(v))))
#define	atomic_sub(i, v)   ((void)(__atomic_add_return(-(i),(v))))
#define	atomic_inc(v)   ((void)(__atomic_add_return( 1,(v))))
#define	atomic_dec(v)   ((void)(__atomic_add_return( -1,(v))))
#define	atomic_add_return(i, v)   (__atomic_add_return( (i),(v)))
#define	atomic_sub_return(i, v)   (__atomic_add_return(-(i),(v)))
#define	atomic_inc_return(v)   (__atomic_add_return( 1,(v)))
#define	atomic_dec_return(v)   (__atomic_add_return( -1,(v)))
#define	atomic_add_negative(a, v)   (atomic_add_return((a), (v)) < 0)
#define	atomic_inc_and_test(v)   (atomic_inc_return(v) == 0)
#define	atomic_dec_and_test(v)   (atomic_dec_return(v) == 0)
#define	atomic_sub_and_test(i, v)   (atomic_sub_return((i),(v)) == 0)
#define	ATOMIC_INIT(i)   { (i) }
#define	smp_mb__before_atomic_dec()   smp_mb()
#define	smp_mb__after_atomic_dec()   smp_mb()
#define	smp_mb__before_atomic_inc()   smp_mb()
#define	smp_mb__after_atomic_inc()   smp_mb()

Macro Definition Documentation

#define _atomic_spin_lock_irqsave	(		l,
			f
	)		do { local_irq_save(f); } while (0)

Definition at line 48 of file atomic.h.

#define _atomic_spin_unlock_irqrestore	(		l,
			f
	)		do { local_irq_restore(f); } while (0)

Definition at line 49 of file atomic.h.

#define atomic_add	(		i,
			v
	)		((void)(__atomic_add_return( (i),(v))))

Definition at line 118 of file atomic.h.

#define atomic_add_negative	(		a,
			v
	)		(atomic_add_return((a), (v)) < 0)

Definition at line 128 of file atomic.h.

#define atomic_add_return	(		i,
			v
	)		(__atomic_add_return( (i),(v)))

Definition at line 123 of file atomic.h.

#define atomic_cmpxchg	(		v,
			o,
			n
	)		(cmpxchg(&((v)->counter), (o), (n)))

Definition at line 90 of file atomic.h.

#define atomic_dec

(

v

)

((void)(__atomic_add_return( -1,(v))))

Definition at line 121 of file atomic.h.

#define atomic_dec_and_test

(

v

)

(atomic_dec_return(v) == 0)

Definition at line 140 of file atomic.h.

#define atomic_dec_return

(

v

)

(__atomic_add_return( -1,(v)))

Definition at line 126 of file atomic.h.

#define atomic_inc

(

v

)

((void)(__atomic_add_return( 1,(v))))

Definition at line 120 of file atomic.h.

#define atomic_inc_and_test

(

v

)

(atomic_inc_return(v) == 0)

Definition at line 138 of file atomic.h.

#define atomic_inc_return

(

v

)

(__atomic_add_return( 1,(v)))

Definition at line 125 of file atomic.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 144 of file atomic.h.

#define atomic_sub	(		i,
			v
	)		((void)(__atomic_add_return(-(i),(v))))

Definition at line 119 of file atomic.h.

#define atomic_sub_and_test	(		i,
			v
	)		(atomic_sub_return((i),(v)) == 0)

Definition at line 142 of file atomic.h.

#define atomic_sub_return	(		i,
			v
	)		(__atomic_add_return(-(i),(v)))

Definition at line 124 of file atomic.h.

#define atomic_xchg	(		v,
			new
	)		(xchg(&((v)->counter), new))

Definition at line 91 of file atomic.h.

#define smp_mb__after_atomic_dec

(

)

smp_mb()

Definition at line 147 of file atomic.h.

#define smp_mb__after_atomic_inc

(

)

smp_mb()

Definition at line 149 of file atomic.h.

#define smp_mb__before_atomic_dec

(

)

smp_mb()

Definition at line 146 of file atomic.h.

#define smp_mb__before_atomic_inc

(

)

smp_mb()

Definition at line 148 of file atomic.h.