函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\notify\dnotify\dnotify.c Create Date:2022-07-29 10:48:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：his conversion is done only at watch creation

函数原型：static __u32 convert_arg(unsigned long arg)

返回类型：__u32

参数：

类型参数名称
unsigned longarg
192  new_mask等于This inode cares about things that happen to its children. Always set for* dnotify and inotify.
194  如果arg按位与Don't remove notifier 则new_mask或等于dnotify multishot
196  如果arg按位与File removed 则new_mask或等于Subfile was deleted 按位或File was moved from X
198  如果arg按位与File modified 则new_mask或等于File was modified
200  如果arg按位与File accessed 则new_mask或等于File was accessed
202  如果arg按位与File changed attibutes 则new_mask或等于Metadata changed
204  如果arg按位与File renamed 则new_mask或等于le renamed
206  如果arg按位与File created 则new_mask或等于Subfile was created 按位或File was moved to Y
209  返回:new_mask
调用者
名称描述
fcntl_dirnotifyWhen a process calls fcntl to attach a dnotify watch to a directory it ends* up here. Allocate both a mark for fsnotify to add and a dnotify_struct to be* attached to the fsnotify_mark.