diff --git a/fs/namespace.c b/fs/namespace.c
index 5585623..9211da4 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1509,7 +1509,7 @@
 	return new_ns;
 }
 
-struct mnt_namespace *copy_mnt_ns(int flags, struct mnt_namespace *ns,
+struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
 		struct fs_struct *new_fs)
 {
 	struct mnt_namespace *new_ns;
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h
index 1fa4d98..8eed44f 100644
--- a/include/linux/mnt_namespace.h
+++ b/include/linux/mnt_namespace.h
@@ -14,7 +14,7 @@
 	int event;
 };
 
-extern struct mnt_namespace *copy_mnt_ns(int, struct mnt_namespace *,
+extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *,
 		struct fs_struct *);
 extern void __put_mnt_ns(struct mnt_namespace *ns);
 
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index 6d179a3..ce06188 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -32,7 +32,7 @@
 };
 extern struct nsproxy init_nsproxy;
 
-int copy_namespaces(int flags, struct task_struct *tsk);
+int copy_namespaces(unsigned long flags, struct task_struct *tsk);
 void get_task_namespaces(struct task_struct *tsk);
 void free_nsproxy(struct nsproxy *ns);
 int unshare_nsproxy_namespaces(unsigned long, struct nsproxy **,
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 169c6c2..b9a17e0 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -29,7 +29,7 @@
 	kref_get(&ns->kref);
 }
 
-extern struct pid_namespace *copy_pid_ns(int flags, struct pid_namespace *ns);
+extern struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *ns);
 extern void free_pid_ns(struct kref *kref);
 
 static inline void put_pid_ns(struct pid_namespace *ns)
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 51ad167..923db99 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -48,7 +48,8 @@
 	kref_get(&ns->kref);
 }
 
-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)
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index 4b7fcc8..10f0bbb 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -58,8 +58,8 @@
  * Return the newly created nsproxy.  Do not attach this to the task,
  * leave it to the caller to do proper locking and attach it to task.
  */
-static struct nsproxy *create_new_namespaces(int flags, struct task_struct *tsk,
-			struct fs_struct *new_fs)
+static struct nsproxy *create_new_namespaces(unsigned long flags,
+			struct task_struct *tsk, struct fs_struct *new_fs)
 {
 	struct nsproxy *new_nsp;
 	int err;
@@ -121,7 +121,7 @@
  * called from clone.  This now handles copy for nsproxy and all
  * namespaces therein.
  */
-int copy_namespaces(int flags, struct task_struct *tsk)
+int copy_namespaces(unsigned long flags, struct task_struct *tsk)
 {
 	struct nsproxy *old_ns = tsk->nsproxy;
 	struct nsproxy *new_ns;
diff --git a/kernel/pid.c b/kernel/pid.c
index eb66bd2..c6e3f9f 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -365,7 +365,7 @@
 }
 EXPORT_SYMBOL_GPL(find_get_pid);
 
-struct pid_namespace *copy_pid_ns(int flags, struct pid_namespace *old_ns)
+struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *old_ns)
 {
 	BUG_ON(!old_ns);
 	get_pid_ns(old_ns);
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 3ae4393..9d8180a 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -39,7 +39,7 @@
  * utsname of this process won't be seen by parent, and vice
  * versa.
  */
-struct uts_namespace *copy_utsname(int flags, struct uts_namespace *old_ns)
+struct uts_namespace *copy_utsname(unsigned long flags, struct uts_namespace *old_ns)
 {
 	struct uts_namespace *new_ns;