函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\swapfile.c Create Date:2022-07-27 16:46:59
Last Modify:2020-03-17 22:19:49 Copyright©Brick
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函数名称：swap_discard_work

函数原型：static void swap_discard_work(struct work_struct *work)

返回类型：void

参数：

类型参数名称
struct work_struct *work
496  si等于container_of - cast a member of a structure out to the containing structure*@ptr: the pointer to the member.*@type: the type of the container struct this is embedded in.*@member: the name of the member within the struct.(work, structswap_info_struct, discard_work)
498  加自旋锁
499  Doing discard actually. After a cluster discard is finished, the cluster* will be added to free cluster list. caller should hold si->lock.
500  自旋锁解锁