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authorSerge E. Hallyn <serge@hallyn.com>2011-03-23 16:43:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-23 19:47:03 -0700
commitbb96a6f50be27390dc959ff67d9ea0ea0cfbe177 (patch)
tree478253434235baeb1e4760a25c0a0f01293fbb8a /include/linux/utsname.h
parent3486740a4f32a6a466f5ac931654d154790ba648 (diff)
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 'include/linux/utsname.h')
-rw-r--r--include/linux/utsname.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 2c3c0f543705..4e5b0213fdc1 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -54,7 +54,7 @@ static inline void get_uts_ns(struct uts_namespace *ns)
}
extern struct uts_namespace *copy_utsname(unsigned long flags,
- struct uts_namespace *ns);
+ struct task_struct *tsk);
extern void free_uts_ns(struct kref *kref);
static inline void put_uts_ns(struct uts_namespace *ns)
@@ -71,12 +71,12 @@ static inline void put_uts_ns(struct uts_namespace *ns)
}
static inline struct uts_namespace *copy_utsname(unsigned long flags,
- struct uts_namespace *ns)
+ struct task_struct *tsk)
{
if (flags & CLONE_NEWUTS)
return ERR_PTR(-EINVAL);
- return ns;
+ return tsk->nsproxy->uts_ns;
}
#endif