函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\page-writeback.c Create Date:2022-07-27 15:33:07
Last Modify:2022-05-23 13:25:58 Copyright©Brick
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函数名称：bdi_set_min_ratio

函数原型：int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio)

返回类型：int

参数：

类型参数名称
struct backing_dev_info *bdi
unsigned intmin_ratio
677  ret等于0
679  spin_lock_bh( & bdi_lock)
680  如果min_ratio大于max_ratio则
681  ret等于负EINVAL
682  否则
683  min_ratio减等于min_ratio
684  如果di_min_ratio keeps the sum of the minimum dirty shares of all* registered backing devices, which, for obvious reasons, can not* exceed 100%.加min_ratio小于100则
685  di_min_ratio keeps the sum of the minimum dirty shares of all* registered backing devices, which, for obvious reasons, can not* exceed 100%.加等于min_ratio
686  min_ratio加等于min_ratio
687  否则
688  ret等于负EINVAL
691  spin_unlock_bh( & bdi_lock)
693  返回:ret
调用者
名称描述
min_ratio_store