pnode.h 948 B

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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. #include <linux/list.h>
  11. #include <linux/mount.h>
  12. #define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
  13. #define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
  14. #define IS_MNT_NEW(mnt) (!mnt->mnt_namespace)
  15. #define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
  16. #define CL_EXPIRE 0x01
  17. #define CL_SLAVE 0x02
  18. #define CL_COPY_ALL 0x04
  19. #define CL_MAKE_SHARED 0x08
  20. #define CL_PROPAGATION 0x10
  21. static inline void set_mnt_shared(struct vfsmount *mnt)
  22. {
  23. mnt->mnt_flags &= ~MNT_PNODE_MASK;
  24. mnt->mnt_flags |= MNT_SHARED;
  25. }
  26. void change_mnt_propagation(struct vfsmount *, int);
  27. int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
  28. struct list_head *);
  29. int propagate_umount(struct list_head *);
  30. int propagate_mount_busy(struct vfsmount *, int);
  31. #endif /* _LINUX_PNODE_H */