generic_file_llseek

函数名称：generic_file_llseek_size - generic llseek implementation for regular files*@file: file structure to seek on*@offset: file offset to seek to*@whence: type of seek*@size: max size of this file in file system*@eof: offset used for SEEK_END position* This is

函数原型：loff_t generic_file_llseek_size(struct file *file, loff_t offset, int whence, loff_t maxsize, loff_t eof)

返回类型：loff_t

参数：

类型	参数	名称
struct file *	file
loff_t	offset
int	whence
loff_t	maxsize
loff_t	eof

当:whence恒等于seek relative to end of file

offset加等于eof

退出

当:whence恒等于seek relative to current file position

100

如果offset恒等于0则返回:f_pos

107

加自旋锁

108

offset等于vfs_setpos - update the file offset for lseek*@file: file structure in question*@offset: file offset to seek to*@maxsize: maximum file size* This is a low-level filesystem helper for updating the file offset to* the value specified by @offset if the given

109

自旋锁解锁

110

返回:offset

111

当:whence恒等于seek to the next data

116

如果offset大于等于eof则返回:负ENXIO

118

退出

119

当:whence恒等于seek to the next hole

124

如果offset大于等于eof则返回:负ENXIO

126

offset等于eof

127

退出

130

返回:vfs_setpos - update the file offset for lseek*@file: file structure in question*@offset: file offset to seek to*@maxsize: maximum file size* This is a low-level filesystem helper for updating the file offset to* the value specified by @offset if the given

**调用者**
名称	描述
generic_file_llseek	generic_file_llseek - generic llseek implementation for regular files@file: file structure to seek on@offset: file offset to seek to@whence: type of seek This is a generic implemenation of ->llseek useable for all normal local* filesystems
fixed_size_llseek	xed_size_llseek - llseek implementation for fixed-sized devices@file: file structure to seek on@offset: file offset to seek to@whence: type of seek@size: size of the file
no_seek_end_llseek	_seek_end_llseek - llseek implementation for fixed-sized devices@file: file structure to seek on@offset: file offset to seek to*@whence: type of seek
no_seek_end_llseek_size	_seek_end_llseek_size - llseek implementation for fixed-sized devices@file: file structure to seek on@offset: file offset to seek to@whence: type of seek@size: maximal offset allowed
empty_dir_llseek

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告