block: Accept device model name for x-blockdev-remove-medium

In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.

This converts x-blockdev-remove-medium to accept a qdev device name.

As the command is experimental, we can still remove the 'device' option
that uses the BlockBackend name. This requires some test case changes
and is left for another series.

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

1 files changed, 16 insertions, 12 deletions

diff --git a/blockdev.c b/blockdev.c
index 0eb173d819..a007b22f80 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2281,7 +2281,7 @@ void qmp_eject(const char *device, bool has_force, bool force, Error **errp)
     }
     error_free(local_err);
 
-    qmp_x_blockdev_remove_medium(device, errp);
+    qmp_x_blockdev_remove_medium(true, device, false, NULL, errp);
 }
 
 void qmp_block_passwd(bool has_device, const char *device,
@@ -2415,30 +2415,34 @@ void qmp_blockdev_close_tray(bool has_device, const char *device,
     blk_dev_change_media_cb(blk, true);
 }
 
-void qmp_x_blockdev_remove_medium(const char *device, Error **errp)
+void qmp_x_blockdev_remove_medium(bool has_device, const char *device,
+                                  bool has_id, const char *id, Error **errp)
 {
     BlockBackend *blk;
     BlockDriverState *bs;
     AioContext *aio_context;
-    bool has_device;
+    bool has_attached_device;
 
-    blk = blk_by_name(device);
+    device = has_device ? device : NULL;
+    id = has_id ? id : NULL;
+
+    blk = qmp_get_blk(device, id, errp);
     if (!blk) {
-        error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
-                  "Device '%s' not found", device);
         return;
     }
 
     /* For BBs without a device, we can exchange the BDS tree at will */
-    has_device = blk_get_attached_dev(blk);
+    has_attached_device = blk_get_attached_dev(blk);
 
-    if (has_device && !blk_dev_has_removable_media(blk)) {
-        error_setg(errp, "Device '%s' is not removable", device);
+    if (has_attached_device && !blk_dev_has_removable_media(blk)) {
+        error_setg(errp, "Device '%s' is not removable", device ?: id);
         return;
     }
 
-    if (has_device && blk_dev_has_tray(blk) && !blk_dev_is_tray_open(blk)) {
-        error_setg(errp, "Tray of device '%s' is not open", device);
+    if (has_attached_device && blk_dev_has_tray(blk) &&
+        !blk_dev_is_tray_open(blk))
+    {
+        error_setg(errp, "Tray of device '%s' is not open", device ?: id);
         return;
     }
 
@@ -2604,7 +2608,7 @@ void qmp_blockdev_change_medium(const char *device, const char *filename,
     error_free(err);
     err = NULL;
 
-    qmp_x_blockdev_remove_medium(device, &err);
+    qmp_x_blockdev_remove_medium(true, device, false, NULL, errp);
     if (err) {
         error_propagate(errp, err);
         goto fail;