diff options
Diffstat (limited to 'freebsd/sys/sys/refcount.h')
| -rw-r--r-- | freebsd/sys/sys/refcount.h | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/freebsd/sys/sys/refcount.h b/freebsd/sys/sys/refcount.h index b169f542..4611664e 100644 --- a/freebsd/sys/sys/refcount.h +++ b/freebsd/sys/sys/refcount.h @@ -29,6 +29,7 @@ #ifndef __SYS_REFCOUNT_H__ #define __SYS_REFCOUNT_H__ +#include <sys/limits.h> #include <machine/atomic.h> #ifdef _KERNEL @@ -48,11 +49,8 @@ static __inline void refcount_acquire(volatile u_int *count) { -#ifndef __rtems__ + KASSERT(*count < UINT_MAX, ("refcount %p overflowed", count)); atomic_add_acq_int(count, 1); -#else /* __rtems__ */ - atomic_add_acq_int((volatile int *) count, 1); -#endif /* __rtems__ */ } static __inline int @@ -61,11 +59,7 @@ refcount_release(volatile u_int *count) u_int old; /* XXX: Should this have a rel membar? */ -#ifndef __rtems__ old = atomic_fetchadd_int(count, -1); -#else /* __rtems__ */ - old = atomic_fetchadd_int((volatile int *) count, -1); -#endif /* __rtems__ */ KASSERT(old > 0, ("negative refcount %p", count)); return (old == 1); } |