atomic_64.h File Reference

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

Go to the source code of this file.

Macros
#define	ATOMIC_INIT(i)   { (i) }
#define	ATOMIC64_INIT(i)   { (i) }
#define	atomic_read(v)   (*(volatile int *)&(v)->counter)
#define	atomic64_read(v)   (*(volatile long *)&(v)->counter)
#define	atomic_set(v, i)   (((v)->counter) = i)
#define	atomic64_set(v, i)   (((v)->counter) = i)
#define	atomic_dec_return(v)   atomic_sub_ret(1, v)
#define	atomic64_dec_return(v)   atomic64_sub_ret(1, v)
#define	atomic_inc_return(v)   atomic_add_ret(1, v)
#define	atomic64_inc_return(v)   atomic64_add_ret(1, v)
#define	atomic_sub_return(i, v)   atomic_sub_ret(i, v)
#define	atomic64_sub_return(i, v)   atomic64_sub_ret(i, v)
#define	atomic_add_return(i, v)   atomic_add_ret(i, v)
#define	atomic64_add_return(i, v)   atomic64_add_ret(i, v)
#define	atomic_inc_and_test(v)   (atomic_inc_return(v) == 0)
#define	atomic64_inc_and_test(v)   (atomic64_inc_return(v) == 0)
#define	atomic_sub_and_test(i, v)   (atomic_sub_ret(i, v) == 0)
#define	atomic64_sub_and_test(i, v)   (atomic64_sub_ret(i, v) == 0)
#define	atomic_dec_and_test(v)   (atomic_sub_ret(1, v) == 0)
#define	atomic64_dec_and_test(v)   (atomic64_sub_ret(1, v) == 0)
#define	atomic_inc(v)   atomic_add(1, v)
#define	atomic64_inc(v)   atomic64_add(1, v)
#define	atomic_dec(v)   atomic_sub(1, v)
#define	atomic64_dec(v)   atomic64_sub(1, v)
#define	atomic_add_negative(i, v)   (atomic_add_ret(i, v) < 0)
#define	atomic64_add_negative(i, v)   (atomic64_add_ret(i, v) < 0)
#define	atomic_cmpxchg(v, o, n)   (cmpxchg(&((v)->counter), (o), (n)))
#define	atomic_xchg(v, new)   (xchg(&((v)->counter), new))
#define	atomic64_cmpxchg(v, o, n)   ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
#define	atomic64_xchg(v, new)   (xchg(&((v)->counter), new))
#define	atomic64_inc_not_zero(v)   atomic64_add_unless((v), 1, 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
void	atomic_add (int, atomic_t *)
void	atomic64_add (long, atomic64_t *)
void	atomic_sub (int, atomic_t *)
void	atomic64_sub (long, atomic64_t *)
int	atomic_add_ret (int, atomic_t *)
long	atomic64_add_ret (long, atomic64_t *)
int	atomic_sub_ret (int, atomic_t *)
long	atomic64_sub_ret (long, atomic64_t *)
long	atomic64_dec_if_positive (atomic64_t *v)

Macro Definition Documentation

#define atomic64_add_negative	(		i,
			v
	)		(atomic64_add_ret(i, v) < 0)

Definition at line 68 of file atomic_64.h.

#define atomic64_add_return	(		i,
			v
	)		atomic64_add_ret(i, v)

Definition at line 42 of file atomic_64.h.

#define atomic64_cmpxchg	(		v,
			o,
			n
	)		((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))

Definition at line 88 of file atomic_64.h.

#define atomic64_dec

(

v

)

atomic64_sub(1, v)

Definition at line 65 of file atomic_64.h.

#define atomic64_dec_and_test

(

v

)

(atomic64_sub_ret(1, v) == 0)

Definition at line 59 of file atomic_64.h.

#define atomic64_dec_return

(

v

)

atomic64_sub_ret(1, v)

Definition at line 33 of file atomic_64.h.

#define atomic64_inc

(

v

)

atomic64_add(1, v)

Definition at line 62 of file atomic_64.h.

#define atomic64_inc_and_test

(

v

)

(atomic64_inc_return(v) == 0)

Definition at line 53 of file atomic_64.h.

#define atomic64_inc_not_zero

(

v

)

atomic64_add_unless((v), 1, 0)

Definition at line 107 of file atomic_64.h.

#define atomic64_inc_return

(

v

)

atomic64_add_ret(1, v)

Definition at line 36 of file atomic_64.h.

#define ATOMIC64_INIT

(

i

)

{ (i) }

Definition at line 14 of file atomic_64.h.

#define atomic64_read

(

v

)

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

Definition at line 17 of file atomic_64.h.

#define atomic64_set	(		v,
			i
	)		(((v)->counter) = i)

Definition at line 20 of file atomic_64.h.

#define atomic64_sub_and_test	(		i,
			v
	)		(atomic64_sub_ret(i, v) == 0)

Definition at line 56 of file atomic_64.h.

#define atomic64_sub_return	(		i,
			v
	)		atomic64_sub_ret(i, v)

Definition at line 39 of file atomic_64.h.

#define atomic64_xchg	(		v,
			new
	)		(xchg(&((v)->counter), new))

Definition at line 90 of file atomic_64.h.

#define atomic_add_negative	(		i,
			v
	)		(atomic_add_ret(i, v) < 0)

Definition at line 67 of file atomic_64.h.

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

Definition at line 41 of file atomic_64.h.

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

Definition at line 70 of file atomic_64.h.

#define atomic_dec

(

v

)

atomic_sub(1, v)

Definition at line 64 of file atomic_64.h.

#define atomic_dec_and_test

(

v

)

(atomic_sub_ret(1, v) == 0)

Definition at line 58 of file atomic_64.h.

#define atomic_dec_return

(

v

)

atomic_sub_ret(1, v)

Definition at line 32 of file atomic_64.h.

#define atomic_inc

(

v

)

atomic_add(1, v)

Definition at line 61 of file atomic_64.h.

#define atomic_inc_and_test

(

v

)

(atomic_inc_return(v) == 0)

Definition at line 52 of file atomic_64.h.

#define atomic_inc_return

(

v

)

atomic_add_ret(1, v)

Definition at line 35 of file atomic_64.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 13 of file atomic_64.h.

#define atomic_read

(

v

)

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

Definition at line 16 of file atomic_64.h.

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

Definition at line 19 of file atomic_64.h.

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

Definition at line 55 of file atomic_64.h.

#define atomic_sub_return	(		i,
			v
	)		atomic_sub_ret(i, v)

Definition at line 38 of file atomic_64.h.

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

Definition at line 71 of file atomic_64.h.

#define smp_mb__after_atomic_dec

(

)

barrier()

Definition at line 113 of file atomic_64.h.

#define smp_mb__after_atomic_inc

(

)

barrier()

Definition at line 115 of file atomic_64.h.

#define smp_mb__before_atomic_dec

(

)

barrier()

Definition at line 112 of file atomic_64.h.

#define smp_mb__before_atomic_inc

(

)

barrier()

Definition at line 114 of file atomic_64.h.

Function Documentation

void atomic64_add	(	long	,
		atomic64_t *
	)

long atomic64_add_ret	(	long	,
		atomic64_t *
	)

long atomic64_dec_if_positive

(

atomic64_t *

v

)

Definition at line 117 of file atomic64.c.

void atomic64_sub	(	long	,
		atomic64_t *
	)

long atomic64_sub_ret	(	long	,
		atomic64_t *
	)

void atomic_add	(	int	,
		atomic_t *
	)

int atomic_add_ret	(	int	,
		atomic_t *
	)

void atomic_sub	(	int	,
		atomic_t *
	)

int atomic_sub_ret	(	int	,
		atomic_t *
	)