pipe_lock_nested

函数名称：We use head and tail indices that aren't masked off, except at the point of* dereference, but rather they're allowed to wrap naturally. This means there* isn't a dead spot in the buffer, but the ring has to be a power of two and* <= 2^31.

函数原型：static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)

返回类型：void

参数：

类型	参数	名称
struct pipe_inode_info *	pipe
int	subclass

如果files则mutex_lock_nested( & mutex, subclass)

**调用者**
名称	描述
pipe_lock
pipe_double_lock

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