commit e40e5027f6b0b7e981c4f1844180fb0e7947d1cd
author Fam Zheng <famz@redhat.com> Thu Dec 24 12:45:04 2015 +0800
committer Max Reitz <mreitz@redhat.com> Thu Jan 07 21:30:18 2016 +0100
tree 99bbad7dff41c869899f7523709757cac838e5a1
parent 4193cdd7718e69589af82aca44c39266e753af14

block: Add check on mirror target

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1450932306-13717-4-git-send-email-famz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

blockdev.c

diff --git a/blockdev.c b/blockdev.c
index 22e06ba..f42e171 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3342,6 +3342,9 @@
     if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_MIRROR_SOURCE, errp)) {
         return;
     }
+    if (bdrv_op_is_blocked(target, BLOCK_OP_TYPE_MIRROR_TARGET, errp)) {
+        return;
+    }
 
     if (!bs->backing && sync == MIRROR_SYNC_MODE_TOP) {
         sync = MIRROR_SYNC_MODE_FULL;