blkdev_write

函数名称：blkdev_write_begin

函数原型：static int blkdev_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata)

返回类型：int

参数：

类型	参数	名称
struct file *	file
struct address_space *	mapping
loff_t	pos
unsigned	len
unsigned	flags
struct page **	pagep
void **	fsdata

627

返回:lock_write_begin takes care of the basic task of block allocation and* bringing partial write blocks uptodate first.* The filesystem needs to handle block truncation upon failure.

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