From 752ce45150d3d70aabc4eb46a7a9cdfd8b4640fd Mon Sep 17 00:00:00 2001
From: Peter Lieven <pl@kamp.de>
Date: Thu, 16 Apr 2015 16:08:28 +0200
Subject: [PATCH] block/iscsi: store DPOFUA bit from the modesense command

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1429193313-4263-5-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/iscsi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/iscsi.c b/block/iscsi.c
index 221c9fc4ef..237faa1f05 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -66,6 +66,7 @@ typedef struct IscsiLun {
     bool write_protected;
     bool lbpme;
     bool lbprz;
+    bool dpofua;
     bool has_write_same;
 } IscsiLun;
 
@@ -1258,6 +1259,7 @@ static void iscsi_modesense_sync(IscsiLun *iscsilun)
     struct scsi_task *task;
     struct scsi_mode_sense *ms = NULL;
     iscsilun->write_protected = false;
+    iscsilun->dpofua = false;
 
     task = iscsi_modesense6_sync(iscsilun->iscsi, iscsilun->lun,
                                  1, SCSI_MODESENSE_PC_CURRENT,
@@ -1279,6 +1281,7 @@ static void iscsi_modesense_sync(IscsiLun *iscsilun)
         goto out;
     }
     iscsilun->write_protected = ms->device_specific_parameter & 0x80;
+    iscsilun->dpofua          = ms->device_specific_parameter & 0x10;
 
 out:
     if (task) {