Author: mav
Date: Wed Feb 13 00:38:28 2019
New Revision: 344074
URL: https://svnweb.freebsd.org/changeset/base/344074
Log:
MFC r343582,r343588: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.
Modified:
stable/11/sys/cam/scsi/scsi_da.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/cam/scsi/scsi_da.c
==============================================================================
--- stable/11/sys/cam/scsi/scsi_da.c Wed Feb 13 00:37:16 2019
(r344073)
+++ stable/11/sys/cam/scsi/scsi_da.c Wed Feb 13 00:38:28 2019
(r344074)
@@ -3054,14 +3054,12 @@ more:
/*
* BIO_FLUSH doesn't currently communicate
* range data, so we synchronize the cache
- * over the whole disk. We also force
- * ordered tag semantics the flush applies
- * to all previously queued I/O.
+ * over the whole disk.
*/
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,
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
