LXR linux/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