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 10:39:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mnt_change_mountpoint

函数原型：void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp, struct mount *mnt)

返回类型：void

参数：

类型参数名称
struct mount *parent
struct mountpoint *mp
struct mount *mnt
860  old_mp等于 where is it mounted
861  old_parent等于mnt_parent
863  删除链表项并重新初始化
864  hlist_del_init( & list mounts with the same mountpoint )
865  hlist_del_init_rcu - deletes entry from hash list with re-initialization*@n: the element to delete from the hash list.* Note: list_unhashed() on the node return true after this. It is* useful for RCU based read lockfree traversal if the writer side
867  vfsmount lock must be held for write
869  alled with namespace_lock and vfsmount lock
870  vfsmount lock must be held for read
调用者
名称描述
attach_recursive_mnt@source_mnt : mount tree to be attached*@nd : place the mount tree @source_mnt is attached*@parent_nd : if non-null, detach the source_mnt from its parent and* store the parent mount and mountpoint dentry
restore_mounts