--- a/usr/src/uts/common/fs/zfs/sys/zio.h	Tue Dec 19 22:06:32 2006 -0800
+++ b/usr/src/uts/common/fs/zfs/sys/zio.h	Tue Dec 19 23:13:06 2006 -0800
@@ -295,6 +295,8 @@
 
 extern void *zio_buf_alloc(size_t size);
 extern void zio_buf_free(void *buf, size_t size);
+extern void *zio_data_buf_alloc(size_t size);
+extern void zio_data_buf_free(void *buf, size_t size);
 
 /*
  * Move an I/O to the next stage of the pipeline and execute that stage.