From: Marc-André Lureau <marcandre.lur...@redhat.com>

Allow to pass additional arguments, such as options and opaque

Signed-off-by: Marc-André Lureau <marcandre.lur...@gmail.com>
---
 blockdev.c                | 24 +++++++++++++++++++-----
 include/sysemu/blockdev.h |  3 +++
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/blockdev.c b/blockdev.c
index b8db544..f2c3c4e 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1498,12 +1498,13 @@ void qmp_block_passwd(const char *device, const char 
*password, Error **errp)
 
 static void qmp_bdrv_open_encrypted(BlockDriverState *bs, const char *filename,
                                     int bdrv_flags, BlockDriver *drv,
-                                    const char *password, Error **errp)
+                                    const char *password, QDict *options,
+                                    Error **errp)
 {
     Error *local_err = NULL;
     int ret;
 
-    ret = bdrv_open(bs, filename, NULL, bdrv_flags, drv, &local_err);
+    ret = bdrv_open(bs, filename, options, bdrv_flags, drv, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         return;
@@ -1523,8 +1524,9 @@ static void qmp_bdrv_open_encrypted(BlockDriverState *bs, 
const char *filename,
     }
 }
 
-void qmp_change_blockdev(const char *device, const char *filename,
-                         const char *format, Error **errp)
+void qmp_change_blockdev_int(const char *device, const char *filename,
+                             const char *format, QDict *options, void *opaque,
+                             Error **errp)
 {
     BlockDriverState *bs;
     BlockDriver *drv = NULL;
@@ -1554,7 +1556,19 @@ void qmp_change_blockdev(const char *device, const char 
*filename,
     bdrv_flags = bdrv_is_read_only(bs) ? 0 : BDRV_O_RDWR;
     bdrv_flags |= bdrv_is_snapshot(bs) ? BDRV_O_SNAPSHOT : 0;
 
-    qmp_bdrv_open_encrypted(bs, filename, bdrv_flags, drv, NULL, errp);
+    if (bs->opaque) {
+        error_set(errp, QERR_INVALID_PARAMETER, device);
+        return;
+    }
+    bs->opaque = opaque;
+
+    qmp_bdrv_open_encrypted(bs, filename, bdrv_flags, drv, NULL, options, 
errp);
+}
+
+void qmp_change_blockdev(const char *device, const char *filename,
+                         const char *format, Error **errp)
+{
+    qmp_change_blockdev_int(device, filename, format, NULL, NULL, errp);
 }
 
 /* throttling disk I/O limits */
diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h
index 134712b..5ce4997 100644
--- a/include/sysemu/blockdev.h
+++ b/include/sysemu/blockdev.h
@@ -65,6 +65,9 @@ DriveInfo *add_init_drive(const char *opts);
 
 void qmp_change_blockdev(const char *device, const char *filename,
                          const char *format, Error **errp);
+void qmp_change_blockdev_int(const char *device, const char *filename,
+                             const char *format, QDict *options, void *opaque,
+                             Error **errp);
 void do_commit(Monitor *mon, const QDict *qdict);
 int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
 #endif
-- 
1.8.3.1

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