1 files changed, 37 insertions, 0 deletions

diff --git a/fs/pnode.h b/fs/pnode.h
new file mode 100644
index 000000000000..020e1bb60fdb
--- /dev/null
+++ b/fs/pnode.h
@@ -0,0 +1,37 @@
+/*
+ *  linux/fs/pnode.h
+ *
+ * (C) Copyright IBM Corporation 2005.
+ *      Released under GPL v2.
+ *
+ */
+#ifndef _LINUX_PNODE_H
+#define _LINUX_PNODE_H
+
+#include <linux/list.h>
+#include <linux/mount.h>
+
+#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
+#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
+#define IS_MNT_NEW(mnt)  (!mnt->mnt_namespace)
+#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
+#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
+
+#define CL_EXPIRE               0x01
+#define CL_SLAVE                0x02
+#define CL_COPY_ALL             0x04
+#define CL_MAKE_SHARED          0x08
+#define CL_PROPAGATION          0x10
+
+static inline void set_mnt_shared(struct vfsmount *mnt)
+{
+        mnt->mnt_flags &= ~MNT_PNODE_MASK;
+        mnt->mnt_flags |= MNT_SHARED;
+}
+
+void change_mnt_propagation(struct vfsmount *, int);
+int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
+                struct list_head *);
+int propagate_umount(struct list_head *);
+int propagate_mount_busy(struct vfsmount *, int);
+#endif /* _LINUX_PNODE_H */