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
61         lock_ref,  in lockref_inc_not_zero()
70     spin_lock(&lock_ref->lock);  in lockref_inc_not_zero()
72     if (lock_ref->count > 0)  in lockref_inc_not_zero()
74         ++lock_ref->count;  in lockref_inc_not_zero()
77     spin_unlock(&lock_ref->lock);  in lockref_inc_not_zero()
91 int lockref_dec(struct lockref *lock_ref)  in lockref_dec()  argument
94         lock_ref,  in lockref_dec()
104     spin_lock(&lock_ref->lock);  in lockref_dec()
105     if (lock_ref->count > 0)  in lockref_dec()
107         --lock_ref->count;  in lockref_dec()
108         retval = lock_ref->count;  in lockref_dec()
110     spin_unlock(&lock_ref->lock);  in lockref_dec()
125 int lockref_dec_return(struct lockref *lock_ref)  in lockref_dec_return()  argument
128         lock_ref,  in lockref_dec_return()
149 bool lockref_dec_not_zero(struct lockref *lock_ref)  in lockref_dec_not_zero()  argument
152         lock_ref,  in lockref_dec_not_zero()
161     spin_lock(&lock_ref->lock);  in lockref_dec_not_zero()
162     if (lock_ref->count > 1)  in lockref_dec_not_zero()
164         --lock_ref->count;  in lockref_dec_not_zero()
167     spin_unlock(&lock_ref->lock);  in lockref_dec_not_zero()
181 bool lockref_dec_or_lock_not_zero(struct lockref *lock_ref)  in lockref_dec_or_lock_not_zero()  argument
184         lock_ref,  in lockref_dec_or_lock_not_zero()
193     spin_lock(&lock_ref->lock);  in lockref_dec_or_lock_not_zero()
194     if (lock_ref->count > 1)  in lockref_dec_or_lock_not_zero()
196         --lock_ref->count;  in lockref_dec_or_lock_not_zero()
199     spin_unlock(&lock_ref->lock);  in lockref_dec_or_lock_not_zero()
208 void lockref_mark_dead(struct lockref *lock_ref)  in lockref_mark_dead()  argument
211     assert_spin_locked(&lock_ref->lock);  in lockref_mark_dead()
212     lock_ref->count = -128;  in lockref_mark_dead()
222 bool lockref_inc_not_dead(struct lockref *lock_ref)  in lockref_inc_not_dead()  argument
225         lock_ref,  in lockref_inc_not_dead()
235     spin_lock(&lock_ref->lock);  in lockref_inc_not_dead()
236     if (lock_ref->count >= 0)  in lockref_inc_not_dead()
238         ++lock_ref->count;  in lockref_inc_not_dead()
241     spin_unlock(&lock_ref->lock);  in lockref_inc_not_dead()