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pnode.h

pnode.h 1.1 KB
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  1. /*
    2. 

  2.  *  linux/fs/pnode.h
    3. 

  3.  *
    4. 

  4.  * (C) Copyright IBM Corporation 2005.
    5. 

  5.  *	Released under GPL v2.
    6. 

  6.  *
    7. 

  7.  */
    8. 

  8. #ifndef _LINUX_PNODE_H
    9. 

  9. #define _LINUX_PNODE_H
    10. 

  10. 

  11. #include <linux/list.h>
    12. 

  12. #include <linux/mount.h>
    13. 

  13. 

  14. #define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
    15. 

  15. #define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
    16. 

  16. #define IS_MNT_NEW(mnt)  (!mnt->mnt_ns)
    17. 

  17. #define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
    18. 

  18. #define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
    19. 

  19. 

  20. #define CL_EXPIRE    		0x01
    21. 

  21. #define CL_SLAVE     		0x02
    22. 

  22. #define CL_COPY_ALL 		0x04
    23. 

  23. #define CL_MAKE_SHARED 		0x08
    24. 

  24. #define CL_PROPAGATION 		0x10
    25. 

  25. #define CL_PRIVATE 		0x20
    26. 

  26. 

  27. static inline void set_mnt_shared(struct vfsmount *mnt)
    28. 

  28. {
    29. 

  29. 	mnt->mnt_flags &= ~MNT_PNODE_MASK;
    30. 

  30. 	mnt->mnt_flags |= MNT_SHARED;
    31. 

  31. }
    32. 

  32. 

  33. void change_mnt_propagation(struct vfsmount *, int);
    34. 

  34. int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
    35. 

  35. 		struct list_head *);
    36. 

  36. int propagate_umount(struct list_head *);
    37. 

  37. int propagate_mount_busy(struct vfsmount *, int);
    38. 

  38. void mnt_release_group_id(struct vfsmount *);
    39. 

  39. int get_dominating_id(struct vfsmount *mnt, const struct path *root);
    40. 

  40. #endif /* _LINUX_PNODE_H */
    41.