block/commit: add block job creation flags

Add support for taking and passing forward job creation flags.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20180906130225.5118-2-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
diff --git a/block/commit.c b/block/commit.c
index da69165..b6e8969 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -249,7 +249,8 @@
 };
 
 void commit_start(const char *job_id, BlockDriverState *bs,
-                  BlockDriverState *base, BlockDriverState *top, int64_t speed,
+                  BlockDriverState *base, BlockDriverState *top,
+                  int creation_flags, int64_t speed,
                   BlockdevOnError on_error, const char *backing_file_str,
                   const char *filter_node_name, Error **errp)
 {
@@ -267,7 +268,7 @@
     }
 
     s = block_job_create(job_id, &commit_job_driver, NULL, bs, 0, BLK_PERM_ALL,
-                         speed, JOB_DEFAULT, NULL, NULL, errp);
+                         speed, creation_flags, NULL, NULL, errp);
     if (!s) {
         return;
     }