Re: [PATCH] write barriers for 2.4.x

[Chris Mason]

On Thursday, February 14, 2002 03:31:08 PM +0100 Matthias Andree <[e-mail]> wrote:

[ barrier support for sym53c8xx_2?]

I can only promise this compiles against 2.4.18-pre9, and looks right
to me.  l-k and Jens brought into cc in hopes of a little verification.

-chris

--- a/drivers/scsi/sym53c8xx_2/sym_glue.c Thu, 13 Dec 2001 11:06:51 -0500 
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c Thu, 14 Feb 2002 10:43:01 -0500 
@@ -729,7 +729,14 @@
 	 *  Select tagged/untagged.
 	 */
 	lp = sym_lp(np, tp, ccb->lun);
-	order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0;
+	if (lp && lp->s.reqtags) {
+		if (ccb->request.cmd_flags & RQ_WRITE_ORDERED)
+			order = M_ORDERED_TAG;
+		else
+			order = M_SIMPLE_TAG;
+	} else {
+		order = 0 ;
+	}
 
 	/*
 	 *  Queue the SCSI IO.