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07b20889
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1/*
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>
b2dba1af 12#include "mount.h"
03e06e68 13
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14#define IS_MNT_SHARED(m) ((m)->mnt.mnt_flags & MNT_SHARED)
15#define IS_MNT_SLAVE(m) ((m)->mnt_master)
16#define IS_MNT_NEW(m) (!(m)->mnt_ns)
17#define CLEAR_MNT_SHARED(m) ((m)->mnt.mnt_flags &= ~MNT_SHARED)
18#define IS_MNT_UNBINDABLE(m) ((m)->mnt.mnt_flags & MNT_UNBINDABLE)
03e06e68 19
b90fa9ae 20#define CL_EXPIRE 0x01
a58b0eb8 21#define CL_SLAVE 0x02
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22#define CL_COPY_ALL 0x04
23#define CL_MAKE_SHARED 0x08
796a6b52 24#define CL_PRIVATE 0x10
b90fa9ae 25
0f0afb1d 26static inline void set_mnt_shared(struct mount *mnt)
b90fa9ae 27{
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28 mnt->mnt.mnt_flags &= ~MNT_SHARED_MASK;
29 mnt->mnt.mnt_flags |= MNT_SHARED;
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30}
31
0f0afb1d 32void change_mnt_propagation(struct mount *, int);
a8d56d8e 33int propagate_mnt(struct mount *, struct dentry *, struct mount *,
b90fa9ae 34 struct list_head *);
a05964f3 35int propagate_umount(struct list_head *);
1ab59738 36int propagate_mount_busy(struct mount *, int);
4b8b21f4 37void mnt_release_group_id(struct mount *);
6fc7871f 38int get_dominating_id(struct mount *mnt, const struct path *root);
83adc753 39unsigned int mnt_get_count(struct mount *mnt);
14cf1fa8 40void mnt_set_mountpoint(struct mount *, struct dentry *,
44d964d6 41 struct mount *);
f47ec3f2 42void release_mounts(struct list_head *);
761d5c38 43void umount_tree(struct mount *, int, struct list_head *);
87129cc0 44struct mount *copy_tree(struct mount *, struct dentry *, int);
643822b4 45bool is_path_reachable(struct mount *, struct dentry *,
afac7cba 46 const struct path *root);
07b20889 47#endif /* _LINUX_PNODE_H */