revert_creds

函数名称：vert_creds - Revert a temporary subjective credentials override*@old: The credentials to be restored* Revert a temporary set of override subjective credentials to an old set,* discarding the override set.

函数原型：void revert_creds(const struct cred *old)

返回类型：void

参数：

类型	参数	名称
const struct cred *	old

584

override等于cred

586

kdebug("revert_creds(%p{%d,%d})", old, atomic_read( & usage), read_cred_subscribers(old))

590

validate_creds(old)

591

validate_creds(override)

592

alter_cred_subscribers(old, 1)

593

cu_assign_pointer() - assign to RCU-protected pointer*@p: pointer to assign to*@v: value to assign (publish)* Assigns the specified value to the specified RCU-protected* pointer, ensuring that any concurrent RCU readers will see* any prior initialization(cred, old)

594

alter_cred_subscribers(override, - 1)

595

put_cred - Release a reference to a set of credentials*@cred: The credentials to release* Release a reference to a set of credentials, deleting them when the last ref* is released

**调用者**
名称	描述
do_acct_process
io_sq_thread
__io_worker_unuse	Note: drops the wqe->lock if returning true! The caller must re-acquire* the lock in that case. Some callers need to restart handling if this* happens, so we can't just re-acquire the lock on behalf of the caller.
do_coredump
do_faccessat	access() needs to use the real uid/gid, not the effective uid/gid.* We do this by temporarily clearing all FS-related capabilities and* switching the fsuid/fsgid around to the real ones.

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