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_NEW(mnt)  (!mnt->mnt_namespace)
  16 #define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
  17
  18 #define CL_EXPIRE               0x01
  19 #define CL_COPY_ALL             0x04
  20 #define CL_MAKE_SHARED          0x08
  21 #define CL_PROPAGATION          0x10
  22
  23 static inline void set_mnt_shared(struct vfsmount *mnt)
  24 {
  25         mnt->mnt_flags &= ~MNT_PNODE_MASK;
  26         mnt->mnt_flags |= MNT_SHARED;
  27 }
  28
  29 void change_mnt_propagation(struct vfsmount *, int);
  30 int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
  31                 struct list_head *);
  32 #endif /* _LINUX_PNODE_H */