函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\quota\dquot.c Create Date:2022-07-29 11:08:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Mark dquot dirty in atomic manner, and return it's old dirty flag state

函数原型：int dquot_mark_dquot_dirty(struct dquot *dquot)

返回类型：int

参数：

类型参数名称
struct dquot *dquot
352  ret等于1
354  如果非st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from则返回:0
357  如果 Flags for diskquotas on this device 按位与Do not track dirty dquots in a list 则返回:st_and_set_bit - Set a bit and return its old value*@nr: Bit to set*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).
361  如果st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from则返回:1
364  加自旋锁
365  如果非st_and_set_bit - Set a bit and return its old value*@nr: Bit to set*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).则
366  添加链表项
368  ret等于0
370  自旋锁解锁
371  返回:ret