pnode.h 1.0 KB
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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>
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#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
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#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
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#define IS_MNT_NEW(mnt)  (!mnt->mnt_ns)
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#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
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#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
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#define CL_EXPIRE    		0x01
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#define CL_SLAVE     		0x02
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#define CL_COPY_ALL 		0x04
#define CL_MAKE_SHARED 		0x08
#define CL_PROPAGATION 		0x10
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#define CL_PRIVATE 		0x20
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static inline void set_mnt_shared(struct vfsmount *mnt)
{
	mnt->mnt_flags &= ~MNT_PNODE_MASK;
	mnt->mnt_flags |= MNT_SHARED;
}

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void change_mnt_propagation(struct vfsmount *, int);
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int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
		struct list_head *);
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int propagate_umount(struct list_head *);
int propagate_mount_busy(struct vfsmount *, int);
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#endif /* _LINUX_PNODE_H */