lookup_one_len_common

函数名称：lookup_one_len_common

函数原型：static int lookup_one_len_common(const char *name, struct dentry *base, int len, struct qstr *this)

返回类型：int

参数：

类型	参数	名称
const char *	name
struct dentry *	base
int	len
struct qstr *	this

2448

name等于name

2449

len等于len

2450

hash等于Return the hash of a string of known length

2451

如果非len则返回:负EACCES

2454

如果此条件成立可能性小(为编译器优化)(name[0] == '.')则

2455

如果len小于2或len恒等于2且name[1]恒等于'.'则返回:负EACCES

2459

当len自减循环

2460

c等于name自加

2461

如果c恒等于'/'或c恒等于'\0'则返回:负EACCES

2468

如果 protected by d_lock 按位与d_flags entries 则

2469

err等于d_hash(base, this)

2470

如果err小于0则返回:err

2474

返回:de_permission - Check for access rights to a given inode*@inode: Inode to check permission on*@mask: Right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)* Check for read/write/execute permissions on an inode

**调用者**
名称	描述
try_lookup_one_len	ry_lookup_one_len - filesystem helper to lookup single pathname component@name: pathname component to lookup@base: base directory to lookup from@len: maximum length @len should be interpreted to Look up a dentry by name in the dcache, returning NULL
lookup_one_len	lookup_one_len - filesystem helper to lookup single pathname component@name: pathname component to lookup@base: base directory to lookup from@len: maximum length @len should be interpreted to Note that this routine is purely a helper for filesystem
lookup_one_len_unlocked	lookup_one_len_unlocked - filesystem helper to lookup single pathname component@name: pathname component to lookup@base: base directory to lookup from@len: maximum length @len should be interpreted to Note that this routine is purely a helper for

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