Root/fs/pnode.h

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>
12#include <linux/mount.h>
13
14#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
15#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
16#define IS_MNT_NEW(mnt) (!mnt->mnt_ns)
17#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
18#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
19
20#define CL_EXPIRE 0x01
21#define CL_SLAVE 0x02
22#define CL_COPY_ALL 0x04
23#define CL_MAKE_SHARED 0x08
24#define CL_PROPAGATION 0x10
25#define CL_PRIVATE 0x20
26
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
33void change_mnt_propagation(struct vfsmount *, int);
34int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
35        struct list_head *);
36int propagate_umount(struct list_head *);
37int propagate_mount_busy(struct vfsmount *, int);
38void mnt_release_group_id(struct vfsmount *);
39int get_dominating_id(struct vfsmount *mnt, const struct path *root);
40#endif /* _LINUX_PNODE_H */
41

Archive Download this file



interactive