#include <linux/sched.h>
#include <linux/kref.h>
#include <linux/nsproxy.h>
+#include <linux/err.h>
#include <asm/atomic.h>
struct uts_namespace {
};
extern struct uts_namespace init_uts_ns;
+#ifdef CONFIG_UTS_NS
static inline void get_uts_ns(struct uts_namespace *ns)
{
kref_get(&ns->kref);
}
-#ifdef CONFIG_UTS_NS
-extern struct uts_namespace *copy_utsname(int flags, struct uts_namespace *ns);
+extern struct uts_namespace *copy_utsname(unsigned long flags,
+ struct uts_namespace *ns);
extern void free_uts_ns(struct kref *kref);
static inline void put_uts_ns(struct uts_namespace *ns)
kref_put(&ns->kref, free_uts_ns);
}
#else
-static inline struct uts_namespace *copy_utsname(int flags,
- struct uts_namespace *ns)
+static inline void get_uts_ns(struct uts_namespace *ns)
{
- return ns;
}
static inline void put_uts_ns(struct uts_namespace *ns)
{
}
+
+static inline struct uts_namespace *copy_utsname(unsigned long flags,
+ struct uts_namespace *ns)
+{
+ if (flags & CLONE_NEWUTS)
+ return ERR_PTR(-EINVAL);
+
+ return ns;
+}
#endif
static inline struct new_utsname *utsname(void)