1/*
2 *  linux/fs/pnode.h
3 *
4 * (C) Copyright IBM Corporation 2005.
5 *	Released under GPL v2.
6 *
7 */
8#ifndef _LINUX_PNODE_H
9#define _LINUX_PNODE_H
10
11#include <linux/list.h>
12#include <linux/mount.h>
13
14#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
15#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
16#define IS_MNT_NEW(mnt)  (!mnt->mnt_ns)
17#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
18#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
19
20#define CL_EXPIRE    		0x01
21#define CL_SLAVE     		0x02
22#define CL_COPY_ALL 		0x04
23#define CL_MAKE_SHARED 		0x08
24#define CL_PROPAGATION 		0x10
25
26static inline void set_mnt_shared(struct vfsmount *mnt)
27{
28	mnt->mnt_flags &= ~MNT_PNODE_MASK;
29	mnt->mnt_flags |= MNT_SHARED;
30}
31
32void change_mnt_propagation(struct vfsmount *, int);
33int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
34		struct list_head *);
35int propagate_umount(struct list_head *);
36int propagate_mount_busy(struct vfsmount *, int);
37#endif /* _LINUX_PNODE_H */
38