40 void lockref_inc(struct lockref *lock_ref)  in lockref_inc()  argument
43     CMPXCHG_LOOP(lock_ref, ++new.count;, return;);  in lockref_inc()
46     spin_lock(&lock_ref->lock);  in lockref_inc()
47     ++lock_ref->count;  in lockref_inc()
48     spin_unlock(&lock_ref->lock);  in lockref_inc()
58 bool lockref_inc_not_zero(struct lockref *lock_ref)  in lockref_inc_not_zero()  argument
60     CMPXCHG_LOOP(lock_ref,  in lockref_inc_not_zero()
66     spin_lock(&lock_ref->lock);  in lockref_inc_not_zero()
68     if (lock_ref->count > 0)  in lockref_inc_not_zero()
70         ++lock_ref->count;  in lockref_inc_not_zero()
73     spin_unlock(&lock_ref->lock);  in lockref_inc_not_zero()
87 int lockref_dec(struct lockref *lock_ref)  in lockref_dec()  argument
89     CMPXCHG_LOOP(lock_ref,  in lockref_dec()
97     spin_lock(&lock_ref->lock);  in lockref_dec()
98     if (lock_ref->count > 0)  in lockref_dec()
100         --lock_ref->count;  in lockref_dec()
101         retval = lock_ref->count;  in lockref_dec()
103     spin_unlock(&lock_ref->lock);  in lockref_dec()
118 int lockref_dec_return(struct lockref *lock_ref)  in lockref_dec_return()  argument
120     CMPXCHG_LOOP(lock_ref,  in lockref_dec_return()
139 bool lockref_dec_not_zero(struct lockref *lock_ref)  in lockref_dec_not_zero()  argument
141     CMPXCHG_LOOP(lock_ref,  in lockref_dec_not_zero()
148     spin_lock(&lock_ref->lock);  in lockref_dec_not_zero()
149     if (lock_ref->count > 1)  in lockref_dec_not_zero()
151         --lock_ref->count;  in lockref_dec_not_zero()
154     spin_unlock(&lock_ref->lock);  in lockref_dec_not_zero()
168 bool lockref_dec_or_lock_not_zero(struct lockref *lock_ref)  in lockref_dec_or_lock_not_zero()  argument
170     CMPXCHG_LOOP(lock_ref,  in lockref_dec_or_lock_not_zero()
177     spin_lock(&lock_ref->lock);  in lockref_dec_or_lock_not_zero()
178     if (lock_ref->count > 1)  in lockref_dec_or_lock_not_zero()
180         --lock_ref->count;  in lockref_dec_or_lock_not_zero()
183     spin_unlock(&lock_ref->lock);  in lockref_dec_or_lock_not_zero()
192 void lockref_mark_dead(struct lockref *lock_ref)  in lockref_mark_dead()  argument
195     assert_spin_locked(&lock_ref->lock);  in lockref_mark_dead()
196     lock_ref->count = -128;  in lockref_mark_dead()
206 bool lockref_inc_not_dead(struct lockref *lock_ref)  in lockref_inc_not_dead()  argument
208     CMPXCHG_LOOP(lock_ref,  in lockref_inc_not_dead()
216     spin_lock(&lock_ref->lock);  in lockref_inc_not_dead()
217     if (lock_ref->count >= 0)  in lockref_inc_not_dead()
219         ++lock_ref->count;  in lockref_inc_not_dead()
222     spin_unlock(&lock_ref->lock);  in lockref_inc_not_dead()