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_PRIVATE 0x10 25 26static inline void set_mnt_shared(struct vfsmount *mnt) 27{ 28 mnt->mnt_flags &= ~MNT_SHARED_MASK; 29 mnt->mnt_flags |= MNT_SHARED; 30} 31 32void change_mnt_propagation(struct vfsmount *, int); 33int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *, 34 struct list_head *); 35int propagate_umount(struct list_head *); 36int propagate_mount_busy(struct vfsmount *, int); 37void mnt_release_group_id(struct vfsmount *); 38int get_dominating_id(struct vfsmount *mnt, const struct path *root); 39#endif /* _LINUX_PNODE_H */ 40