函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sched\core.c Create Date:2022-07-27 10:37:33
Last Modify:2022-05-22 13:40:38 Copyright©Brick
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函数名称:io_schedule_finish

函数原型:void io_schedule_finish(int token)

返回类型:void

参数:

类型参数名称
inttoken
5779  in_iowait等于token
调用者
名称描述
io_schedule_timeoutThis task is about to go to sleep on IO. Increment rq->nr_iowait so* that process accounting knows that this is a task in IO wait state.
io_schedule
mutex_lock_io_nested
blkcg_maybe_throttle_blkgThis is called when we want to actually walk up the hierarchy and check to* see if we need to throttle, and then actually throttle if there is some* accumulated delay. This should only be called upon return to user space so