Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\namespace.c Create Date:2022-07-28 20:09:11
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:vfsmount lock must be held for write

Proto:static void umount_mnt(struct mount *mnt)

Type:void

Parameter:

TypeParameterName
struct mount *mnt
822  alled with namespace_lock and vfsmount lock
Caller
NameDescribe
umount_treemount_lock must be held* namespace_sem must be held for write
__detach_mounts__detach_mounts - lazily unmount all mounts on the specified dentry* During unlink, rmdir, and d_drop it is possible to loose the path* to an existing mountpoint, and wind up leaking the mount
SYSCALL_DEFINE2pivot_root Semantics:* Moves the root file system of the current process to the directory put_old,* makes new_root as the new root file system of the current process, and sets* root/cwd of all processes which had them on the current root to new_root