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 11:21:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：RCU torture force-quiescent-state kthread. Repeatedly induces* bursts of calls to force_quiescent_state(), increasing the probability* of occurrence of some important types of race conditions.

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

返回类型：int

参数：

类型参数名称
void *arg
913  VERBOSE_TOROUT_STRING("rcu_torture_fqs task started")
914  循环
915  fqs_resume_time等于jiffies加fqs_stutter乘HZ
916  当ULONG_CMP_LT(jiffies, fqs_resume_time)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
918  schedule_timeout_interruptible(1)
920  fqs_burst_remaining等于fqs_duration
921  当fqs_burst_remaining大于0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
923  fqs()
924  0x10c7 is 2**32 / 1000000 (rounded up) (fqs_holdoff)
925  fqs_burst_remaining减等于fqs_holdoff
927  Task stuttering, which forces load/no-load transitions.
928  当非Is it time for the current torture test to stop?循环
929  Each kthread must wait for kthread_should_stop() before returning from* its top-level function, otherwise segfaults ensue
930  返回:0