u_int minphys __P((struct buf *bp));
int physio __P((void (*)(struct buf *), struct buf *, dev_t, int , u_int (*)(struct buf *), struct uio *, int ));
int count_busy_buffers __P((void));
-struct buf *alloc_io_buf __P((struct vnode *vp));
-void free_io_buf __P((struct buf *bp));
+struct buf *alloc_io_buf __P((struct vnode *, int));
+void free_io_buf __P((struct buf *));
__END_DECLS
/*