Re: [PATCH] write barriers for 2.4.x

From: Chris Mason (mason@suse.com)
Date: Thu Feb 14 2002 - 11:01:43 EST


On Thursday, February 14, 2002 03:31:08 PM +0100 Matthias Andree <ma@dt.e-technik.uni-dortmund.de> 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.

-
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