Function report |
Source Code:kernel\locking\rtmutex.c |
Create Date:2022-07-28 09:52:18 |
Last Modify:2020-03-17 14:26:38 | Copyright©Brick |
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Name:__rt_mutex_slowlock() - Perform the wait-wake-try-to-take loop*@lock: the rt_mutex to take*@state: the state the task should block in (TASK_INTERRUPTIBLE* or TASK_UNINTERRUPTIBLE)*@timeout: the pre-initialized and started timer, or NULL for none*@waiter:
Proto:static int __sched __rt_mutex_slowlock(struct rt_mutex *lock, int state, struct hrtimer_sleeper *timeout, struct rt_mutex_waiter *waiter)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct rt_mutex * | lock | |
int | state | |
struct hrtimer_sleeper * | timeout | |
struct rt_mutex_waiter * | waiter |
1171 | ret = 0 |
1173 | cycle |
1175 | If Try to take an rt-mutex* Must be called with lock->wait_lock held and interrupts disabled*@lock: The lock to be acquired Then Break |
1182 | If Value is more likely to compile time(state == TASK_INTERRUPTIBLE) Then |
1184 | If signal_pending(current process) Then ret = -EINTR |
1188 | If ret Then Break |
1192 | raw_spin_unlock_irq( & wait_lock) |
1196 | schedule() |
1198 | raw_spin_lock_irq( & wait_lock) |
1199 | set_current_state(state) |
1203 | Return ret |
Name | Describe |
---|---|
rt_mutex_slowlock | Slow path lock function: |
rt_mutex_wait_proxy_lock | _mutex_wait_proxy_lock() - Wait for lock acquisition*@lock: the rt_mutex we were woken on*@to: the timeout, null if none |
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