函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\rcutorture.c Create Date:2022-07-27 11:21:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：rcu_torture_boost

函数原型：static int rcu_torture_boost(void *arg)

返回类型：int

参数：

类型参数名称
void *arg
803  struct rcu_boost_inflight rbi = {inflight = 0}
806  VERBOSE_TOROUT_STRING("rcu_torture_boost started")
809  sched_priority等于1
810  如果sched_setscheduler - change the scheduling policy and/or RT priority of a thread.*@p: the task in question.*@policy: new policy.*@param: structure containing the new RT priority.* Return: 0 on success. An error code otherwise.小于0则
811  VERBOSE_TOROUT_STRING("rcu_torture_boost RT prio failed!")
812  n_rcu_torture_boost_rterror自加
815  init_rcu_head_on_stack( & rcu)
817  循环
819  bool failed = false
822  当非kthread_should_stop - should this kthread return now?* When someone calls kthread_stop() on your kthread, it will be woken* and this will return true. You should then return, and your return* value will be passed through to kthread_stop().循环
823  如果mutex_trylock - try to acquire the mutex, without waiting*@lock: the mutex to be acquired* Try to acquire the mutex atomically则
828  schedule_timeout_uninterruptible(1)
830  如果kthread_should_stop - should this kthread return now?* When someone calls kthread_stop() on your kthread, it will be woken* and this will return true. You should then return, and your return* value will be passed through to kthread_stop().则转到:checkwait
834  oldstarttime等于jiffies of next boost test start.
835  当ULONG_CMP_LT(jiffies, oldstarttime)循环
836  schedule_timeout_interruptible(oldstarttime - jiffies)
837  Task stuttering, which forces load/no-load transitions.
838  如果Is it time for the current torture test to stop?则转到:checkwait
843  endtime等于oldstarttime加test_boost_duration乘HZ
844  call_rcu_time等于jiffies
845  当ULONG_CMP_LT(jiffies, endtime)循环
847  如果非smp_load_acquire( & inflight)则
857  Task stuttering, which forces load/no-load transitions.
858  如果Is it time for the current torture test to stop?则转到:checkwait
867  如果非failed且smp_load_acquire( & inflight)则rcu_torture_boost_failed(call_rcu_time, jiffies)
877  当oldstarttime恒等于jiffies of next boost test start. 且非kthread_should_stop - should this kthread return now?* When someone calls kthread_stop() on your kthread, it will be woken* and this will return true. You should then return, and your return* value will be passed through to kthread_stop().循环
879  如果mutex_trylock - try to acquire the mutex, without waiting*@lock: the mutex to be acquired* Try to acquire the mutex atomically则
885  schedule_timeout_uninterruptible(1)
889  checkwait :
889  Task stuttering, which forces load/no-load transitions.
890  当非Is it time for the current torture test to stop?循环
893  当非kthread_should_stop - should this kthread return now?* When someone calls kthread_stop() on your kthread, it will be woken* and this will return true. You should then return, and your return* value will be passed through to kthread_stop().或smp_load_acquire( & inflight)循环
894  Test auto-shutdown handling.
895  schedule_timeout_uninterruptible(1)
897  destroy_rcu_head_on_stack( & rcu)
898  Each kthread must wait for kthread_should_stop() before returning from* its top-level function, otherwise segfaults ensue
899  返回:0