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/*

 *  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_ns)

#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

#define CL_PRIVATE              0x20

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 */