blob: c62c72fad212eac4a373d46943e3e1c3a1b27268 [file] [log] [blame]
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 Paib90fa9a2005-11-07 17:19:50 -050015#define IS_MNT_NEW(mnt) (!mnt->mnt_namespace)
Ram Pai03e06e62005-11-07 17:19:33 -050016#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
17
Ram Paib90fa9a2005-11-07 17:19:50 -050018#define CL_EXPIRE 0x01
19#define CL_COPY_ALL 0x04
20#define CL_MAKE_SHARED 0x08
21#define CL_PROPAGATION 0x10
22
23static inline void set_mnt_shared(struct vfsmount *mnt)
24{
25 mnt->mnt_flags &= ~MNT_PNODE_MASK;
26 mnt->mnt_flags |= MNT_SHARED;
27}
28
Ram Pai07b20882005-11-07 17:19:07 -050029void change_mnt_propagation(struct vfsmount *, int);
Ram Paib90fa9a2005-11-07 17:19:50 -050030int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
31 struct list_head *);
Ram Pai07b20882005-11-07 17:19:07 -050032#endif /* _LINUX_PNODE_H */