13 	struct lockref old;							\
15 	old.lock_count = READ_ONCE(lockref->lock_count);			\
17 		struct lockref new = old, prev = old;				\
19 		old.lock_count = cmpxchg64_relaxed(&lockref->lock_count,	\
44 void lockref_get(struct lockref *lockref)  in lockref_get()  argument
52 	spin_lock(&lockref->lock);  in lockref_get()
53 	lockref->count++;  in lockref_get()
54 	spin_unlock(&lockref->lock);  in lockref_get()
63 int lockref_get_not_zero(struct lockref *lockref)  in lockref_get_not_zero()  argument
75 	spin_lock(&lockref->lock);  in lockref_get_not_zero()
77 	if (lockref->count > 0) {  in lockref_get_not_zero()
78 		lockref->count++;  in lockref_get_not_zero()
81 	spin_unlock(&lockref->lock);  in lockref_get_not_zero()
91 int lockref_put_not_zero(struct lockref *lockref)  in lockref_put_not_zero()  argument
103 	spin_lock(&lockref->lock);  in lockref_put_not_zero()
105 	if (lockref->count > 1) {  in lockref_put_not_zero()
106 		lockref->count--;  in lockref_put_not_zero()
109 	spin_unlock(&lockref->lock);  in lockref_put_not_zero()
120 int lockref_get_or_lock(struct lockref *lockref)  in lockref_get_or_lock()  argument
130 	spin_lock(&lockref->lock);  in lockref_get_or_lock()
131 	if (lockref->count <= 0)  in lockref_get_or_lock()
133 	lockref->count++;  in lockref_get_or_lock()
134 	spin_unlock(&lockref->lock);  in lockref_get_or_lock()
146 int lockref_put_return(struct lockref *lockref)  in lockref_put_return()  argument
164 int lockref_put_or_lock(struct lockref *lockref)  in lockref_put_or_lock()  argument
174 	spin_lock(&lockref->lock);  in lockref_put_or_lock()
175 	if (lockref->count <= 1)  in lockref_put_or_lock()
177 	lockref->count--;  in lockref_put_or_lock()
178 	spin_unlock(&lockref->lock);  in lockref_put_or_lock()
187 void lockref_mark_dead(struct lockref *lockref)  in lockref_mark_dead()  argument
189 	assert_spin_locked(&lockref->lock);  in lockref_mark_dead()
190 	lockref->count = -128;  in lockref_mark_dead()
199 int lockref_get_not_dead(struct lockref *lockref)  in lockref_get_not_dead()  argument
211 	spin_lock(&lockref->lock);  in lockref_get_not_dead()
213 	if (lockref->count >= 0) {  in lockref_get_not_dead()
214 		lockref->count++;  in lockref_get_not_dead()
217 	spin_unlock(&lockref->lock);  in lockref_get_not_dead()