函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-core.c Create Date:2022-07-27 18:34:35
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:blk_clear_pm_only

函数原型:void blk_clear_pm_only(struct request_queue *q)

返回类型:void

参数:

类型参数名称
struct request_queue *q
301  pm_only等于atomic_dec_return( & * Number of contexts that have called blk_set_pm_only(). If this * counter is above zero then only RQF_PM and RQF_PREEMPT requests are * processed.)
302  WARN_ON_ONCE(pm_only < 0)
303  如果pm_only恒等于0则wake_up_all( & mq_freeze_wq)
调用者
名称描述
blk_pre_runtime_suspendlk_pre_runtime_suspend - Pre runtime suspend check*@q: the queue of the device* Description:* This function will check if runtime suspend is allowed for the device* by examining if there are any requests pending in the queue
blk_post_runtime_suspendlk_post_runtime_suspend - Post runtime suspend processing*@q: the queue of the device*@err: return value of the device's runtime_suspend function* Description:* Update the queue's runtime status according to the return value of the* device's runtime
blk_post_runtime_resumelk_post_runtime_resume - Post runtime resume processing*@q: the queue of the device*@err: return value of the device's runtime_resume function* Description:* Update the queue's runtime status according to the return value of the