Fixed corruption of the fd buffer queue. Once upon a time, the active

buffer had to be left on the head of the queue for [bufq]disksort()
to sort against.  This isn't right for devices that can support multiple
active i/o's, and only the fd driver did it.  "Fixing" this in rev.1.36
of ufs_disksubr.c broke the fd driver in much the same way as rev.1.52
of <sys/buf.h> broke it (see rev.1.119).

Bug reported and fix tested by:	dt

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/isa/fdc.h b/sys/isa/fdc.h
index c8c275f..43bf9f8 100644
--- a/sys/isa/fdc.h
+++ b/sys/isa/fdc.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	from:	@(#)fd.c	7.4 (Berkeley) 5/25/91
- *	$Id: fdc.h,v 1.11 1998/07/29 13:00:42 bde Exp $
+ *	$Id: fdc.h,v 1.12 1998/12/12 08:16:01 imp Exp $
  *
  */
 
@@ -68,7 +68,8 @@ struct fdc_data
 	u_int	status[7];	/* copy of the registers */
 	enum	fdc_type fdct;	/* chip version of FDC */
 	int	fdc_errs;	/* number of logged errors */
-	struct buf_queue_head head;	/* Head of buf chain	  */
+	struct	buf_queue_head head;
+	struct	buf *bp;	/* active buffer */
 };
 
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