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| author | Serge E. Hallyn <serge@hallyn.com> | 2011-03-23 16:43:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-23 19:47:03 -0700 |
| commit | bb96a6f50be27390dc959ff67d9ea0ea0cfbe177 (patch) | |
| tree | 478253434235baeb1e4760a25c0a0f01293fbb8a /kernel/nsproxy.c | |
| parent | 3486740a4f32a6a466f5ac931654d154790ba648 (diff) | |
| download | lwn-bb96a6f50be27390dc959ff67d9ea0ea0cfbe177.tar.gz lwn-bb96a6f50be27390dc959ff67d9ea0ea0cfbe177.zip | |
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>
Diffstat (limited to 'kernel/nsproxy.c')
| -rw-r--r-- | kernel/nsproxy.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c index 034dc2ed13ac..b97fc9d04ddf 100644 --- a/kernel/nsproxy.c +++ b/kernel/nsproxy.c @@ -69,16 +69,11 @@ static struct nsproxy *create_new_namespaces(unsigned long flags, goto out_ns; } - new_nsp->uts_ns = copy_utsname(flags, tsk->nsproxy->uts_ns); + new_nsp->uts_ns = copy_utsname(flags, tsk); if (IS_ERR(new_nsp->uts_ns)) { err = PTR_ERR(new_nsp->uts_ns); goto out_uts; } - if (new_nsp->uts_ns != tsk->nsproxy->uts_ns) { - put_user_ns(new_nsp->uts_ns->user_ns); - new_nsp->uts_ns->user_ns = task_cred_xxx(tsk, user)->user_ns; - get_user_ns(new_nsp->uts_ns->user_ns); - } new_nsp->ipc_ns = copy_ipcs(flags, tsk->nsproxy->ipc_ns); if (IS_ERR(new_nsp->ipc_ns)) { |