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,	\
43 void lockref_get(struct lockref *lockref)  in lockref_get()  argument
51 	spin_lock(&lockref->lock);  in lockref_get()
52 	lockref->count++;  in lockref_get()
53 	spin_unlock(&lockref->lock);  in lockref_get()
62 int lockref_get_not_zero(struct lockref *lockref)  in lockref_get_not_zero()  argument
74 	spin_lock(&lockref->lock);  in lockref_get_not_zero()
76 	if (lockref->count > 0) {  in lockref_get_not_zero()
77 		lockref->count++;  in lockref_get_not_zero()
80 	spin_unlock(&lockref->lock);  in lockref_get_not_zero()
90 int lockref_put_not_zero(struct lockref *lockref)  in lockref_put_not_zero()  argument
102 	spin_lock(&lockref->lock);  in lockref_put_not_zero()
104 	if (lockref->count > 1) {  in lockref_put_not_zero()
105 		lockref->count--;  in lockref_put_not_zero()
108 	spin_unlock(&lockref->lock);  in lockref_put_not_zero()
119 int lockref_get_or_lock(struct lockref *lockref)  in lockref_get_or_lock()  argument
129 	spin_lock(&lockref->lock);  in lockref_get_or_lock()
130 	if (lockref->count <= 0)  in lockref_get_or_lock()
132 	lockref->count++;  in lockref_get_or_lock()
133 	spin_unlock(&lockref->lock);  in lockref_get_or_lock()
145 int lockref_put_return(struct lockref *lockref)  in lockref_put_return()  argument
163 int lockref_put_or_lock(struct lockref *lockref)  in lockref_put_or_lock()  argument
173 	spin_lock(&lockref->lock);  in lockref_put_or_lock()
174 	if (lockref->count <= 1)  in lockref_put_or_lock()
176 	lockref->count--;  in lockref_put_or_lock()
177 	spin_unlock(&lockref->lock);  in lockref_put_or_lock()
186 void lockref_mark_dead(struct lockref *lockref)  in lockref_mark_dead()  argument
188 	assert_spin_locked(&lockref->lock);  in lockref_mark_dead()
189 	lockref->count = -128;  in lockref_mark_dead()
198 int lockref_get_not_dead(struct lockref *lockref)  in lockref_get_not_dead()  argument
210 	spin_lock(&lockref->lock);  in lockref_get_not_dead()
212 	if (lockref->count >= 0) {  in lockref_get_not_dead()
213 		lockref->count++;  in lockref_get_not_dead()
216 	spin_unlock(&lockref->lock);  in lockref_get_not_dead()