43 struct kref {  struct
48 kref_init(struct kref *kref)  in kref_init()  argument
51 	refcount_init((uint32_t *)&kref->refcount, 1);  in kref_init()
55 kref_read(const struct kref *kref)  in kref_read()  argument
58 	return (refcount_load(__DECONST(u_int32_t *, &kref->refcount)));  in kref_read()
62 kref_get(struct kref *kref)  in kref_get()  argument
65 	refcount_acquire((uint32_t *)&kref->refcount);  in kref_get()
69 kref_put(struct kref *kref, void (*rel)(struct kref *kref))  in kref_put()  argument
72 	if (refcount_release((uint32_t *)&kref->refcount)) {  in kref_put()
73 		rel(kref);  in kref_put()
80 kref_put_lock(struct kref *kref, void (*rel)(struct kref *kref),  in kref_put_lock()  argument
84 	if (refcount_release((uint32_t *)&kref->refcount)) {  in kref_put_lock()
86 		rel(kref);  in kref_put_lock()
93 kref_sub(struct kref *kref, unsigned int count,  in kref_sub()  argument
94     void (*rel)(struct kref *kref))  in kref_sub()  argument
98 		if (refcount_release((uint32_t *)&kref->refcount)) {  in kref_sub()
99 			rel(kref);  in kref_sub()
107 kref_get_unless_zero(struct kref *kref)  in kref_get_unless_zero()  argument
110 	return refcount_acquire_if_not_zero((uint32_t *)&kref->refcount);  in kref_get_unless_zero()
113 static inline int kref_put_mutex(struct kref *kref,  in kref_put_mutex()  argument
114     void (*release)(struct kref *kref), struct mutex *lock)  in kref_put_mutex()  argument
117 	if (unlikely(!refcount_release_if_not_last((uint32_t *)&kref->refcount))) {  in kref_put_mutex()
119 		if (unlikely(!refcount_release((uint32_t *)&kref->refcount))) {  in kref_put_mutex()
123 		release(kref);  in kref_put_mutex()