atomic.h File Reference

#include <linux/types.h>
#include <asm/cmpxchg.h>
#include <linux/kernel.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(i, v)   atomic_add_return(i, v)
#define	atomic_add_negative(a, v)   (atomic_add_return((a), (v)) < 0)
#define	atomic_sub(i, v)   atomic_sub_return(i, v)
#define	atomic_sub_and_test(i, v)   (atomic_sub_return(i, v) == 0)
#define	atomic_inc(v)   atomic_inc_return(v)
#define	atomic_inc_and_test(v)   (atomic_inc_return(v) == 0)
#define	atomic_dec(v)   atomic_dec_return(v)
#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	(		i,
			v
	)		atomic_add_return(i, v)

Definition at line 29 of file atomic.h.

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

Definition at line 30 of file atomic.h.

#define atomic_dec

(

v

)

atomic_dec_return(v)

Definition at line 79 of file atomic.h.

#define atomic_inc

(

v

)

atomic_inc_return(v)

Definition at line 56 of file atomic.h.

#define atomic_inc_and_test

(

v

)

(atomic_inc_return(v) == 0)

Definition at line 66 of file atomic.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 12 of file atomic.h.

#define atomic_read

(

v

)

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

Definition at line 14 of file atomic.h.

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

Definition at line 15 of file atomic.h.

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

Definition at line 42 of file atomic.h.

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

Definition at line 43 of file atomic.h.

#define smp_mb__after_atomic_dec

(

)

barrier()

Definition at line 142 of file atomic.h.

#define smp_mb__after_atomic_inc

(

)

barrier()

Definition at line 144 of file atomic.h.

#define smp_mb__before_atomic_dec

(

)

barrier()

Definition at line 141 of file atomic.h.

#define smp_mb__before_atomic_inc

(

)

barrier()

Definition at line 143 of file atomic.h.