userns: allow sethostname in a container
authorSerge E. Hallyn <serge@hallyn.com>
Wed, 23 Mar 2011 23:43:18 +0000 (16:43 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Mar 2011 02:47:03 +0000 (19:47 -0700)
commitbb96a6f50be27390dc959ff67d9ea0ea0cfbe177
tree478253434235baeb1e4760a25c0a0f01293fbb8a
parent3486740a4f32a6a466f5ac931654d154790ba648
userns: allow sethostname in a container

Changelog:
Feb 23: let clone_uts_ns() handle setting uts->user_ns
To do so we need to pass in the task_struct who'll
get the utsname, so we can get its user_ns.
Feb 23: As per Oleg's coment, just pass in tsk, instead of two
of its members.

Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Daniel Lezcano <daniel.lezcano@free.fr>
Acked-by: David Howells <dhowells@redhat.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/utsname.h
kernel/nsproxy.c
kernel/sys.c
kernel/utsname.c