svn commit: r343582 - head/sys/cam/scsi

[Alexander Motin]

Author: mav
Date: Wed Jan 30 16:50:53 2019
New Revision: 343582
URL: https://svnweb.freebsd.org/changeset/base/343582

Log:
  Relax BIO_FLUSH ordering in da(4), respecting BIO_ORDERED.
  
  r212160 tightened this from always using MSG_SIMPLE_Q_TAG to always
  MSG_ORDERED_Q_TAG.  Since it also marked all BIO_FLUSH requests with
  BIO_ORDERED, this commit changes nothing immediately, but it returns
  BIO_FLUSH callers ability to actually specify ordering they really
  need, alike to other request types.
  
  MFC after:	2 weeks
  Sponsored by:	iXsystems, Inc.

Modified:
  head/sys/cam/scsi/scsi_da.c

Modified: head/sys/cam/scsi/scsi_da.c
==============================================================================
--- head/sys/cam/scsi/scsi_da.c	Wed Jan 30 16:29:15 2019	(r343581)
+++ head/sys/cam/scsi/scsi_da.c	Wed Jan 30 16:50:53 2019	(r343582)
@@ -3321,7 +3321,7 @@ more:
 			scsi_synchronize_cache(&start_ccb->csio,
 					       /*retries*/1,
 					       /*cbfcnp*/dadone,
-					       MSG_ORDERED_Q_TAG,
+					       /*tag_action*/tag_code,
 					       /*begin_lba*/0,
 					       /*lb_count*/0,
 					       SSD_FULL_SIZE,