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From: Alexander Motin <mav@FreeBSD.org>
Date: Sat, 14 Sep 2013 09:11:31 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r255549 - stable/9/sys/cam/scsi
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Author: mav
Date: Sat Sep 14 09:11:31 2013
New Revision: 255549
URL: http://svnweb.freebsd.org/changeset/base/255549

Log:
  MFC r254052:
  Improve r253721 by reporting detected lack of BIO_FLUSH support to GEOM.
  That prevents more of such requests from coming and errors from logging.

Modified:
  stable/9/sys/cam/scsi/scsi_da.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/cam/scsi/scsi_da.c
==============================================================================
--- stable/9/sys/cam/scsi/scsi_da.c	Sat Sep 14 09:10:01 2013	(r255548)
+++ stable/9/sys/cam/scsi/scsi_da.c	Sat Sep 14 09:11:31 2013	(r255549)
@@ -2831,6 +2831,7 @@ cmd6workaround(union ccb *ccb)
 			xpt_print(ccb->ccb_h.path,
 			    "SYNCHRONIZE CACHE(10) not supported.\n");
 		softc->quirks |= DA_Q_NO_SYNC_CACHE;
+		softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
 		return (0);
 	}