Differential D18450 Diff 51656 sys/compat/linuxkpi/common/include/asm/atomic-long.h

Changeset View

Standalone View

	Show First 20 Lines • Show All 72 Lines • ▼ Show 20 Lines
	atomic_long_dec(atomic_long_t *v)			atomic_long_dec(atomic_long_t *v)
	{			{
	return atomic_fetchadd_long(&v->counter, -1) - 1;			return atomic_fetchadd_long(&v->counter, -1) - 1;
	}			}

	static inline long			static inline long
	atomic_long_xchg(atomic_long_t *v, long val)			atomic_long_xchg(atomic_long_t *v, long val)
	{			{
	#if defined(__i386__) \|\| defined(__amd64__) \|\| defined(__aarch64__)
	return atomic_swap_long(&v->counter, val);			return atomic_swap_long(&v->counter, val);
	#else
	long ret = atomic_long_read(v);

	while (!atomic_fcmpset_long(&v->counter, &ret, val))
	;
	return (ret);
	#endif
	}			}

	static inline long			static inline long
	atomic_long_cmpxchg(atomic_long_t *v, long old, long new)			atomic_long_cmpxchg(atomic_long_t *v, long old, long new)
	{			{
	long ret = old;			long ret = old;

	for (;;) {			for (;;) {
	Show All 30 Lines