block: Decouple block device "commit all" from DriveInfo

do_commit() and mux_proc_byte() iterate over the list of drives
defined with drive_init().  This misses host block devices defined by
other means.  Such means don't exist now, but will be introduced later
in this series.

Change them to use new bdrv_commit_all(), which iterates over all host
block devices.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/block.c b/block.c
index e701ec0372..df2d3a6e8c 100644
--- a/block.c
+++ b/block.c
@@ -788,6 +788,15 @@ ro_cleanup:
     return ret;
 }
 
+void bdrv_commit_all(void)
+{
+    BlockDriverState *bs;
+
+    QTAILQ_FOREACH(bs, &bdrv_states, list) {
+        bdrv_commit(bs);
+    }
+}
+
 /*
  * Return values:
  * 0        - success