函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\namespace.c Create Date:2022-07-29 10:39:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：all under rcu_read_lock

函数原型：bool legitimize_mnt(struct vfsmount *bastard, unsigned seq)

返回类型：bool

参数：

类型参数名称
struct vfsmount *bastard
unsignedseq
593  res等于all under rcu_read_lock
594  如果此条件成立可能性大(为编译器优化)(!res)则返回:true
596  如果此条件成立可能性小(为编译器优化)(res < 0)则
597  _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()
598  mntput(bastard)
599  _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
601  返回:false
调用者
名称描述
lookup_mntlookup_mnt - Return the first child mount mounted at path* "First" means first mounted chronologically