diff --git a/sys/compat/linuxkpi/common/include/linux/kref.h b/sys/compat/linuxkpi/common/include/linux/kref.h --- a/sys/compat/linuxkpi/common/include/linux/kref.h +++ b/sys/compat/linuxkpi/common/include/linux/kref.h @@ -44,35 +44,35 @@ struct kref { /* XXX In Linux this is a refcount_t */ - atomic_t refcount; + volatile u_int32_t refcount; }; static inline void kref_init(struct kref *kref) { - refcount_init(&kref->refcount.counter, 1); + refcount_init(&kref->refcount, 1); } static inline unsigned int -kref_read(const struct kref *kref) +kref_read(struct kref *kref) { - return (atomic_read(&kref->refcount)); + return (refcount_load(&kref->refcount)); } static inline void kref_get(struct kref *kref) { - refcount_acquire(&kref->refcount.counter); + refcount_acquire(&kref->refcount); } static inline int kref_put(struct kref *kref, void (*rel)(struct kref *kref)) { - if (refcount_release(&kref->refcount.counter)) { + if (refcount_release(&kref->refcount)) { rel(kref); return 1; } @@ -84,7 +84,7 @@ spinlock_t *lock) { - if (refcount_release(&kref->refcount.counter)) { + if (refcount_release(&kref->refcount)) { spin_lock(lock); rel(kref); return (1); @@ -98,7 +98,7 @@ { while (count--) { - if (refcount_release(&kref->refcount.counter)) { + if (refcount_release(&kref->refcount)) { rel(kref); return 1; } @@ -110,16 +110,16 @@ kref_get_unless_zero(struct kref *kref) { - return atomic_add_unless(&kref->refcount, 1, 0); + return refcount_acquire_if_not_zero(&kref->refcount); } static inline int kref_put_mutex(struct kref *kref, void (*release)(struct kref *kref), struct mutex *lock) { WARN_ON(release == NULL); - if (unlikely(!atomic_add_unless(&kref->refcount, -1, 1))) { + if (unlikely(!refcount_release_if_not_last(&kref->refcount))) { mutex_lock(lock); - if (unlikely(!atomic_dec_and_test(&kref->refcount))) { + if (unlikely(!refcount_release(&kref->refcount))) { mutex_unlock(lock); return 0; }