atomic.h File Reference

#include <linux/compiler.h>
#include <linux/types.h>
#include <asm/cmpxchg.h>
#include <arch/atomic.h>

Go to the source code of this file.

Macros
#define	ATOMIC_INIT(i)   { (i) }
#define	atomic_read(v)   (*(volatile int *)&(v)->counter)
#define	atomic_set(v, i)   (((v)->counter) = (i))
#define	atomic_add_negative(a, v)   (atomic_add_return((a), (v)) < 0)
#define	atomic_xchg(v, new)   (xchg(&((v)->counter), new))
#define	smp_mb__before_atomic_dec()   barrier()
#define	smp_mb__after_atomic_dec()   barrier()
#define	smp_mb__before_atomic_inc()   barrier()
#define	smp_mb__after_atomic_inc()   barrier()

Macro Definition Documentation

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

Definition at line 49 of file atomic.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 16 of file atomic.h.

#define atomic_read

(

v

)

(*(volatile int *)&(v)->counter)

Definition at line 18 of file atomic.h.

#define atomic_set	(		v,
			i
	)		(((v)->counter) = (i))

Definition at line 19 of file atomic.h.

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

Definition at line 139 of file atomic.h.

#define smp_mb__after_atomic_dec

(

)

barrier()

Definition at line 156 of file atomic.h.

#define smp_mb__after_atomic_inc

(

)

barrier()

Definition at line 158 of file atomic.h.

#define smp_mb__before_atomic_dec

(

)

barrier()

Definition at line 155 of file atomic.h.

#define smp_mb__before_atomic_inc

(

)

barrier()

Definition at line 157 of file atomic.h.