4 * (C) Copyright IBM Corporation 2005.
5 * Released under GPL v2.
11 #include <linux/list.h>
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)
19 #define IS_MNT_MARKED(m) ((m)->mnt.mnt_flags & MNT_MARKED)
20 #define SET_MNT_MARK(m) ((m)->mnt.mnt_flags |= MNT_MARKED)
21 #define CLEAR_MNT_MARK(m) ((m)->mnt.mnt_flags &= ~MNT_MARKED)
22 #define IS_MNT_LOCKED(m) ((m)->mnt.mnt_flags & MNT_LOCKED)
23 #define IS_MNT_LOCKED_AND_LAZY(m) \
24 (((m)->mnt.mnt_flags & (MNT_LOCKED|MNT_SYNC_UMOUNT)) == MNT_LOCKED)
26 #define CL_EXPIRE 0x01
28 #define CL_COPY_UNBINDABLE 0x04
29 #define CL_MAKE_SHARED 0x08
30 #define CL_PRIVATE 0x10
31 #define CL_SHARED_TO_SLAVE 0x20
32 #define CL_UNPRIVILEGED 0x40
33 #define CL_COPY_MNT_NS_FILE 0x80
35 #define CL_COPY_ALL (CL_COPY_UNBINDABLE | CL_COPY_MNT_NS_FILE)
37 static inline void set_mnt_shared(struct mount *mnt)
39 mnt->mnt.mnt_flags &= ~MNT_SHARED_MASK;
40 mnt->mnt.mnt_flags |= MNT_SHARED;
43 void change_mnt_propagation(struct mount *, int);
44 int propagate_mnt(struct mount *, struct mountpoint *, struct mount *,
46 int propagate_umount(struct list_head *);
47 int propagate_mount_busy(struct mount *, int);
48 void propagate_mount_unlock(struct mount *);
49 void mnt_release_group_id(struct mount *);
50 int get_dominating_id(struct mount *mnt, const struct path *root);
51 unsigned int mnt_get_count(struct mount *mnt);
52 void mnt_set_mountpoint(struct mount *, struct mountpoint *,
54 struct mount *copy_tree(struct mount *, struct dentry *, int);
55 bool is_path_reachable(struct mount *, struct dentry *,
56 const struct path *root);
57 #endif /* _LINUX_PNODE_H */