Lines Matching refs:lock
21 void __lockfunc queued_read_lock_slowpath(struct qrwlock *lock) in queued_read_lock_slowpath() argument
33 atomic_cond_read_acquire(&lock->cnts, !(VAL & _QW_LOCKED)); in queued_read_lock_slowpath()
36 atomic_sub(_QR_BIAS, &lock->cnts); in queued_read_lock_slowpath()
38 trace_contention_begin(lock, LCB_F_SPIN | LCB_F_READ); in queued_read_lock_slowpath()
43 arch_spin_lock(&lock->wait_lock); in queued_read_lock_slowpath()
44 atomic_add(_QR_BIAS, &lock->cnts); in queued_read_lock_slowpath()
51 atomic_cond_read_acquire(&lock->cnts, !(VAL & _QW_LOCKED)); in queued_read_lock_slowpath()
56 arch_spin_unlock(&lock->wait_lock); in queued_read_lock_slowpath()
58 trace_contention_end(lock, 0); in queued_read_lock_slowpath()
66 void __lockfunc queued_write_lock_slowpath(struct qrwlock *lock) in queued_write_lock_slowpath() argument
70 trace_contention_begin(lock, LCB_F_SPIN | LCB_F_WRITE); in queued_write_lock_slowpath()
73 arch_spin_lock(&lock->wait_lock); in queued_write_lock_slowpath()
76 if (!(cnts = atomic_read(&lock->cnts)) && in queued_write_lock_slowpath()
77 atomic_try_cmpxchg_acquire(&lock->cnts, &cnts, _QW_LOCKED)) in queued_write_lock_slowpath()
81 atomic_or(_QW_WAITING, &lock->cnts); in queued_write_lock_slowpath()
85 cnts = atomic_cond_read_relaxed(&lock->cnts, VAL == _QW_WAITING); in queued_write_lock_slowpath()
86 } while (!atomic_try_cmpxchg_acquire(&lock->cnts, &cnts, _QW_LOCKED)); in queued_write_lock_slowpath()
88 arch_spin_unlock(&lock->wait_lock); in queued_write_lock_slowpath()
90 trace_contention_end(lock, 0); in queued_write_lock_slowpath()