11 	struct lockref old;							\
13 	old.lock_count = READ_ONCE(lockref->lock_count);			\
15 		struct lockref new = old, prev = old;				\
17 		old.lock_count = cmpxchg64_relaxed(&lockref->lock_count,	\
40 void lockref_get(struct lockref *lockref)  in lockref_get()  argument
48 	spin_lock(&lockref->lock);  in lockref_get()
49 	lockref->count++;  in lockref_get()
50 	spin_unlock(&lockref->lock);  in lockref_get()
59 int lockref_get_not_zero(struct lockref *lockref)  in lockref_get_not_zero()  argument
71 	spin_lock(&lockref->lock);  in lockref_get_not_zero()
73 	if (lockref->count > 0) {  in lockref_get_not_zero()
74 		lockref->count++;  in lockref_get_not_zero()
77 	spin_unlock(&lockref->lock);  in lockref_get_not_zero()
88 int lockref_get_or_lock(struct lockref *lockref)  in lockref_get_or_lock()  argument
98 	spin_lock(&lockref->lock);  in lockref_get_or_lock()
99 	if (lockref->count <= 0)  in lockref_get_or_lock()
101 	lockref->count++;  in lockref_get_or_lock()
102 	spin_unlock(&lockref->lock);  in lockref_get_or_lock()
114 int lockref_put_return(struct lockref *lockref)  in lockref_put_return()  argument
132 int lockref_put_or_lock(struct lockref *lockref)  in lockref_put_or_lock()  argument
142 	spin_lock(&lockref->lock);  in lockref_put_or_lock()
143 	if (lockref->count <= 1)  in lockref_put_or_lock()
145 	lockref->count--;  in lockref_put_or_lock()
146 	spin_unlock(&lockref->lock);  in lockref_put_or_lock()
155 void lockref_mark_dead(struct lockref *lockref)  in lockref_mark_dead()  argument
157 	assert_spin_locked(&lockref->lock);  in lockref_mark_dead()
158 	lockref->count = -128;  in lockref_mark_dead()
167 int lockref_get_not_dead(struct lockref *lockref)  in lockref_get_not_dead()  argument
179 	spin_lock(&lockref->lock);  in lockref_get_not_dead()
181 	if (lockref->count >= 0) {  in lockref_get_not_dead()
182 		lockref->count++;  in lockref_get_not_dead()
185 	spin_unlock(&lockref->lock);  in lockref_get_not_dead()