函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\locking\rtmutex.c Create Date:2022-07-27 10:52:17
Last Modify:2020-03-17 14:26:38 Copyright©Brick
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函数名称:rt_mutex_adjust_prio

函数原型:static void rt_mutex_adjust_prio(struct task_struct *p)

返回类型:void

参数:

类型参数名称
struct task_struct *p
340  struct task_struct * pi_task = NULL
342  lockdep_assert_held( & Protection of the PI data structures: )
344  如果task_has_pi_waiters(p)则pi_task等于等待进程
347  rt_mutex_setprio(p, pi_task)
调用者
名称描述
rt_mutex_adjust_prio_chainAdjust the priority chain
task_blocks_on_rt_mutexTask blocks on lock.* Prepare waiter and propagate pi chain* This must be called with lock->wait_lock held and interrupts disabled
mark_wakeup_next_waiterRemove the top waiter from the current tasks pi waiter tree and* queue it up.* Called with lock->wait_lock held and interrupts disabled.
remove_waiterRemove a waiter from a lock and give up* Must be called with lock->wait_lock held and interrupts disabled. I must* have just failed to try_to_take_rt_mutex().