diff options
Diffstat (limited to 'kernel/locking/rtmutex.c')
| -rw-r--r-- | kernel/locking/rtmutex.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c index ac1365afcc4a..4a8df1800cbb 100644 --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -1248,10 +1248,7 @@ static int __sched task_blocks_on_rt_mutex(struct rt_mutex_base *lock, /* Check whether the waiter should back out immediately */ rtm = container_of(lock, struct rt_mutex, rtmutex); - preempt_disable(); res = __ww_mutex_add_waiter(waiter, rtm, ww_ctx, wake_q); - wake_up_q(wake_q); - preempt_enable(); if (res) { raw_spin_lock(&task->pi_lock); rt_mutex_dequeue(lock, waiter); @@ -1295,7 +1292,7 @@ static int __sched task_blocks_on_rt_mutex(struct rt_mutex_base *lock, */ get_task_struct(owner); - raw_spin_unlock_irq(&lock->wait_lock); + raw_spin_unlock_irq_wake(&lock->wait_lock, wake_q); res = rt_mutex_adjust_prio_chain(owner, chwalk, lock, next_lock, waiter, task); @@ -1599,6 +1596,7 @@ static void __sched remove_waiter(struct rt_mutex_base *lock, * or TASK_UNINTERRUPTIBLE) * @timeout: the pre-initialized and started timer, or NULL for none * @waiter: the pre-initialized rt_mutex_waiter + * @wake_q: wake_q of tasks to wake when we drop the lock->wait_lock * * Must be called with lock->wait_lock held and interrupts disabled */ @@ -1606,7 +1604,8 @@ static int __sched rt_mutex_slowlock_block(struct rt_mutex_base *lock, struct ww_acquire_ctx *ww_ctx, unsigned int state, struct hrtimer_sleeper *timeout, - struct rt_mutex_waiter *waiter) + struct rt_mutex_waiter *waiter, + struct wake_q_head *wake_q) __releases(&lock->wait_lock) __acquires(&lock->wait_lock) { struct rt_mutex *rtm = container_of(lock, struct rt_mutex, rtmutex); @@ -1637,7 +1636,7 @@ static int __sched rt_mutex_slowlock_block(struct rt_mutex_base *lock, owner = rt_mutex_owner(lock); else owner = NULL; - raw_spin_unlock_irq(&lock->wait_lock); + raw_spin_unlock_irq_wake(&lock->wait_lock, wake_q); if (!owner || !rtmutex_spin_on_owner(lock, waiter, owner)) rt_mutex_schedule(); @@ -1711,7 +1710,7 @@ static int __sched __rt_mutex_slowlock(struct rt_mutex_base *lock, ret = task_blocks_on_rt_mutex(lock, waiter, current, ww_ctx, chwalk, wake_q); if (likely(!ret)) - ret = rt_mutex_slowlock_block(lock, ww_ctx, state, NULL, waiter); + ret = rt_mutex_slowlock_block(lock, ww_ctx, state, NULL, waiter, wake_q); if (likely(!ret)) { /* acquired the lock */ @@ -1788,10 +1787,7 @@ static int __sched rt_mutex_slowlock(struct rt_mutex_base *lock, */ raw_spin_lock_irqsave(&lock->wait_lock, flags); ret = __rt_mutex_slowlock_locked(lock, ww_ctx, state, &wake_q); - preempt_disable(); - raw_spin_unlock_irqrestore(&lock->wait_lock, flags); - wake_up_q(&wake_q); - preempt_enable(); + raw_spin_unlock_irqrestore_wake(&lock->wait_lock, flags, &wake_q); rt_mutex_post_schedule(); return ret; @@ -1849,11 +1845,7 @@ static void __sched rtlock_slowlock_locked(struct rt_mutex_base *lock, owner = rt_mutex_owner(lock); else owner = NULL; - preempt_disable(); - raw_spin_unlock_irq(&lock->wait_lock); - wake_up_q(wake_q); - wake_q_init(wake_q); - preempt_enable(); + raw_spin_unlock_irq_wake(&lock->wait_lock, wake_q); if (!owner || !rtmutex_spin_on_owner(lock, &waiter, owner)) schedule_rtlock(); @@ -1882,10 +1874,7 @@ static __always_inline void __sched rtlock_slowlock(struct rt_mutex_base *lock) raw_spin_lock_irqsave(&lock->wait_lock, flags); rtlock_slowlock_locked(lock, &wake_q); - preempt_disable(); - raw_spin_unlock_irqrestore(&lock->wait_lock, flags); - wake_up_q(&wake_q); - preempt_enable(); + raw_spin_unlock_irqrestore_wake(&lock->wait_lock, flags, &wake_q); } #endif /* RT_MUTEX_BUILD_SPINLOCKS */ |