atomic_32.h File Reference

#include <linux/types.h>
#include <asm/cmpxchg.h>
#include <asm-generic/atomic64.h>

Go to the source code of this file.

Macros
#define	ATOMIC_INIT(i)   { (i) }
#define	atomic_xchg(v, new)   (xchg(&((v)->counter), new))
#define	atomic_read(v)   (*(volatile int *)&(v)->counter)
#define	atomic_add(i, v)   ((void)__atomic_add_return( (int)(i), (v)))
#define	atomic_sub(i, v)   ((void)__atomic_add_return(-(int)(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( (int)(i), (v)))
#define	atomic_sub_return(i, v)   (__atomic_add_return(-(int)(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	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()

Functions
int	__atomic_add_return (int, atomic_t *)
int	atomic_cmpxchg (atomic_t *, int, int)
int	__atomic_add_unless (atomic_t *, int, int)
void	atomic_set (atomic_t *, int)

Macro Definition Documentation

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

Definition at line 30 of file atomic_32.h.

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

Definition at line 40 of file atomic_32.h.

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

Definition at line 35 of file atomic_32.h.

#define atomic_dec

(

v

)

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

Definition at line 33 of file atomic_32.h.

#define atomic_dec_and_test

(

v

)

(atomic_dec_return(v) == 0)

Definition at line 52 of file atomic_32.h.

#define atomic_dec_return

(

v

)

(__atomic_add_return( -1, (v)))

Definition at line 38 of file atomic_32.h.

#define atomic_inc

(

v

)

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

Definition at line 32 of file atomic_32.h.

#define atomic_inc_and_test

(

v

)

(atomic_inc_return(v) == 0)

Definition at line 50 of file atomic_32.h.

#define atomic_inc_return

(

v

)

(__atomic_add_return( 1, (v)))

Definition at line 37 of file atomic_32.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 20 of file atomic_32.h.

#define atomic_read

(

v

)

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

Definition at line 28 of file atomic_32.h.

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

Definition at line 31 of file atomic_32.h.

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

Definition at line 53 of file atomic_32.h.

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

Definition at line 36 of file atomic_32.h.

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

Definition at line 24 of file atomic_32.h.

#define smp_mb__after_atomic_dec

(

)

barrier()

Definition at line 57 of file atomic_32.h.

#define smp_mb__after_atomic_inc

(

)

barrier()

Definition at line 59 of file atomic_32.h.

#define smp_mb__before_atomic_dec

(

)

barrier()

Definition at line 56 of file atomic_32.h.

#define smp_mb__before_atomic_inc

(

)

barrier()

Definition at line 58 of file atomic_32.h.

Function Documentation

int __atomic_add_return	(	int	,
		atomic_t *
	)

Definition at line 30 of file atomic32.c.

int __atomic_add_unless	(	atomic_t *	,
		int	,
		int
	)

Definition at line 58 of file atomic32.c.

int atomic_cmpxchg	(	atomic_t *	,
		int	,
		int
	)

Definition at line 43 of file atomic32.c.

void atomic_set	(	atomic_t *	,
		int
	)

Definition at line 73 of file atomic32.c.