summaryrefslogtreecommitdiff
path: root/include/linux/utsname.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/utsname.h')
-rw-r--r--include/linux/utsname.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 99e522369f4f..02e4b6972064 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -47,6 +47,8 @@ static inline void get_uts_ns(struct uts_namespace *ns)
}
#ifdef CONFIG_UTS_NS
+extern int unshare_utsname(unsigned long unshare_flags,
+ struct uts_namespace **new_uts);
extern int copy_utsname(int flags, struct task_struct *tsk);
extern void free_uts_ns(struct kref *kref);
@@ -55,6 +57,15 @@ static inline void put_uts_ns(struct uts_namespace *ns)
kref_put(&ns->kref, free_uts_ns);
}
#else
+static inline int unshare_utsname(unsigned long unshare_flags,
+ struct uts_namespace **new_uts)
+{
+ if (unshare_flags & CLONE_NEWUTS)
+ return -EINVAL;
+
+ return 0;
+}
+
static inline int copy_utsname(int flags, struct task_struct *tsk)
{
return 0;