函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\apparmor\include\label.h Create Date:2022-07-27 21:19:05
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：aa_get_label_rcu - increment refcount on a label that can be replaced*@l: pointer to label that can be replaced (NOT NULL)* Returns: pointer to a refcounted label.* else NULL if no label

函数原型：static inline struct aa_label *aa_get_label_rcu(struct aa_label __rcu **l)

返回类型：struct aa_label

参数：

类型参数名称
struct aa_label __rcu **l
400  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
401  循环
402  c等于cu_dereference() - fetch RCU-protected pointer for dereferencing*@p: The pointer to read, prior to dereferencing* This is a simple wrapper around rcu_dereference_check().( * l)
403  当c且非kref_get_unless_zero - Increment refcount for object unless it is zero循环
404  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
406  返回:c
调用者
名称描述
seq_profile_name_show
seq_profile_mode_show
seq_profile_attach_show
seq_profile_hash_show
rawdata_get_link_base
aa_get_newest_labelaa_get_newest_label - find the newest version of @l*@l: the label to check for newer versions of* Returns: refcounted newest version of @l taking into account* replacement, renames and removals* return @l.
aa_get_file_label