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Ram Pai07b20882005-11-07 17:19:07 -05001/*
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>
Ram Pai03e06e62005-11-07 17:19:33 -050013
14#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
Ram Paia58b0eb2005-11-07 17:20:48 -050015#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
Kirill Korotaev6b3286e2006-12-08 02:37:56 -080016#define IS_MNT_NEW(mnt) (!mnt->mnt_ns)
Ram Pai03e06e62005-11-07 17:19:33 -050017#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
Ram Pai9676f0c2005-11-07 17:21:20 -050018#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
Ram Pai03e06e62005-11-07 17:19:33 -050019
Ram Paib90fa9a2005-11-07 17:19:50 -050020#define CL_EXPIRE 0x01
Ram Paia58b0eb2005-11-07 17:20:48 -050021#define CL_SLAVE 0x02
Ram Paib90fa9a2005-11-07 17:19:50 -050022#define CL_COPY_ALL 0x04
23#define CL_MAKE_SHARED 0x08
24#define CL_PROPAGATION 0x10
Al Viro8aec0802007-06-07 12:20:32 -040025#define CL_PRIVATE 0x20
Ram Paib90fa9a2005-11-07 17:19:50 -050026
27static inline void set_mnt_shared(struct vfsmount *mnt)
28{
29 mnt->mnt_flags &= ~MNT_PNODE_MASK;
30 mnt->mnt_flags |= MNT_SHARED;
31}
32
Ram Pai07b20882005-11-07 17:19:07 -050033void change_mnt_propagation(struct vfsmount *, int);
Ram Paib90fa9a2005-11-07 17:19:50 -050034int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
35 struct list_head *);
Ram Paia05964f2005-11-07 17:20:17 -050036int propagate_umount(struct list_head *);
37int propagate_mount_busy(struct vfsmount *, int);
Ram Pai07b20882005-11-07 17:19:07 -050038#endif /* _LINUX_PNODE_H */