pnode.h 948 Bytes
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12
/*
 *  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>
Ram Pai's avatar
Ram Pai committed
13 14

#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
Ram Pai's avatar
Ram Pai committed
15
#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
16
#define IS_MNT_NEW(mnt)  (!mnt->mnt_namespace)
Ram Pai's avatar
Ram Pai committed
17 18
#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)

19
#define CL_EXPIRE    		0x01
Ram Pai's avatar
Ram Pai committed
20
#define CL_SLAVE     		0x02
21 22 23 24 25 26 27 28 29 30
#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;
}

31
void change_mnt_propagation(struct vfsmount *, int);
32 33
int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
		struct list_head *);
34 35
int propagate_umount(struct list_head *);
int propagate_mount_busy(struct vfsmount *, int);
36
#endif /* _LINUX_PNODE_H */