函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\keys\request_key_auth.c Create Date:2022-07-27 19:58:43
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Destroy an instantiation authorisation token key.

函数原型：static void request_key_auth_destroy(struct key *key)

返回类型：void

参数：

类型参数名称
struct key *key
149  rka等于cu_access_pointer() - fetch RCU pointer with no dereferencing*@p: The pointer to read* Return the value of the specified RCU-protected pointer, but omit the* lockdep checks for being in an RCU read-side critical section(rcu_data0)
151  kenter("{%d}", key serial number )
152  如果rka则
153  rcu_assign_keypointer(key, NULL)
154  Post an RCU callback to be invoked after the end of an RCU grace* period. But since we have but one CPU, that would be after any* quiescent state.