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| author |   Eric W. Biederman <ebiederm@xmission.com> | 2011-11-16 21:59:43 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-04-07 16:55:52 -0700 |
| commit | aeb3ae9da9b50a386b22af786d19b623e8d9f0fa (patch) | |
| tree | 3db9772ea99c931914bec7ded51f896f1d2e24ec /include/linux/user_namespace.h | |
| parent | cred: Refcount the user_ns pointed to by the cred. (diff) | |
| download | linux-dev-aeb3ae9da9b50a386b22af786d19b623e8d9f0fa.tar.xz linux-dev-aeb3ae9da9b50a386b22af786d19b623e8d9f0fa.zip | |
userns: Add an explicit reference to the parent user namespace
I am about to remove the struct user_namespace reference from struct user_struct.
So keep an explicit track of the parent user namespace.
Take advantage of this new reference and replace instances of user_ns->creator->user_ns
with user_ns->parent.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/user_namespace.h')
| -rw-r--r-- | include/linux/user_namespace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h index faf467944baf..dc2d85a76376 100644 --- a/include/linux/user_namespace.h +++ b/include/linux/user_namespace.h @@ -12,6 +12,7 @@ struct user_namespace { struct kref kref; struct hlist_head uidhash_table[UIDHASH_SZ]; + struct user_namespace *parent; struct user_struct *creator; struct work_struct destroyer; }; |