f9c811fac48c ("locking/qspinlock: Use atomic_cond_read_acquire()")
c61da58d8a9b ("locking/qspinlock: Kill cmpxchg() loop when claiming lock from head of queue")
59fb586b4a07 ("locking/qspinlock: Remove unbounded cmpxchg() loop from locking slowpath")
625e88be1f41 ("locking/qspinlock: Merge 'struct __qspinlock' into 'struct qspinlock'")
11752adb68a3 ("locking/pvqspinlock: Implement hybrid PV queued/unfair locks")