Index: geom.h
===================================================================
RCS file: /private/FreeBSD/src/sys/geom/geom.h,v
retrieving revision 1.77
diff -u -p -r1.77 geom.h
--- geom.h	10 Feb 2004 15:53:28 -0000	1.77
+++ geom.h	11 Feb 2004 08:48:52 -0000
@@ -230,6 +230,7 @@ void g_io_request(struct bio *bp, struct
 struct bio *g_new_bio(void);
 void * g_read_data(struct g_consumer *cp, off_t offset, off_t length, int *error);
 int g_write_data(struct g_consumer *cp, off_t offset, void *ptr, off_t length);
+void g_print_bio(struct bio *bp);
 
 /* geom_kern.c / geom_kernsim.c */
 
Index: geom_io.c
===================================================================
RCS file: /private/FreeBSD/src/sys/geom/geom_io.c,v
retrieving revision 1.52
diff -u -p -r1.52 geom_io.c
--- geom_io.c	28 Jan 2004 08:39:18 -0000	1.52
+++ geom_io.c	11 Feb 2004 08:49:30 -0000
@@ -457,3 +457,38 @@ g_write_data(struct g_consumer *cp, off_
 	g_destroy_bio(bp);
 	return (error);
 }
+
+void
+g_print_bio(struct bio *bp)
+{
+	const char *pname;
+	const char *cmd = NULL;
+
+	if (bp->bio_to != NULL)
+		pname = bp->bio_to->name;
+	else
+		pname = "[unknown]";
+
+	switch (bp->bio_cmd) {
+	case BIO_GETATTR:
+		cmd = "GETATTR";
+		printf("%s[%s(attr=%s)]", pname, cmd, bp->bio_attribute);
+		return;
+	case BIO_READ:
+		cmd = "READ";
+	case BIO_WRITE:
+		if (cmd == NULL)
+			cmd = "WRITE";
+	case BIO_DELETE:
+		if (cmd == NULL)
+			cmd = "DELETE";
+		printf("%s[%s(offset=%jd, length=%jd)]", pname, cmd,
+		    (intmax_t)bp->bio_offset, (intmax_t)bp->bio_length);
+		return;
+	default:
+		cmd = "UNKNOWN";
+		printf("%s[%s()]", pname, cmd);
+		return;
+	}
+	/* NOTREACHED */
+}