xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nsfs: add ioctl to get a parent namespace

Browse Source 
Pid and user namepaces are hierarchical. There is no way to discover
parent-child relationships.

In a future we will use this interface to dump and restore nested
namespaces.

Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Andrey Vagin
2016-09-06 00:47:15 -07:00
committed by Eric W. Biederman
parent 6786741dbf
commit a7306ed8d9
5 changed files with 27 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/uapi/linux/nsfs.h
View File

@@ -7,5 +7,7 @@
/* Returns a file descriptor that refers to an owning user namespace */
#define NS_GET_USERNS _IO(NSIO, 0x1)
/* Returns a file descriptor that refers to a parent namespace */
#define NS_GET_PARENT _IO(NSIO, 0x2)
#endif /* __LINUX_NSFS_H */