Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sched\core.c Create Date:2022-07-28 09:37:00
Last Modify:2022-05-22 13:40:38 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:io_schedule_prepare

Proto:int io_schedule_prepare(void)

Type:int

Parameter:Nothing

5769  old_iowait = in_iowait
5771  in_iowait = 1
5772  blk_schedule_flush_plug(current process)
5774  Return old_iowait
Caller
NameDescribe
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