extern void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list);
extern void mark_mounts_for_expiry(struct list_head *mounts);
-extern dev_t name_to_dev_t(char *name);
+extern dev_t name_to_dev_t(const char *name);
#endif /* _LINUX_MOUNT_H */