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