qcow2: Use error_report() in qcow2_amend_options()

[qemu.git] / block / qed.c

diff --git a/block/qed.c b/block/qed.c
index 5ea05d49093100657943c57520330f55a8e04ca1..9b888950384d7cc6b8aa7a2760d55bd0db2f8e59 100644 (file)
--- a/block/qed.c
+++ b/block/qed.c
@@ -375,6 +375,18 @@ static void bdrv_qed_attach_aio_context(BlockDriverState *bs,
     }
 }
 
+static void bdrv_qed_drain(BlockDriverState *bs)
+{
+    BDRVQEDState *s = bs->opaque;
+
+    /* Cancel timer and start doing I/O that were meant to happen as if it
+     * fired, that way we get bdrv_drain() taking care of the ongoing requests
+     * correctly. */
+    qed_cancel_need_check_timer(s);
+    qed_plug_allocating_write_reqs(s);
+    bdrv_aio_flush(s->bs, qed_clear_need_check, s);
+}
+
 static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
                          Error **errp)
 {
@@ -1676,6 +1688,7 @@ static BlockDriver bdrv_qed = {
     .bdrv_check               = bdrv_qed_check,
     .bdrv_detach_aio_context  = bdrv_qed_detach_aio_context,
     .bdrv_attach_aio_context  = bdrv_qed_attach_aio_context,
+    .bdrv_drain               = bdrv_qed_drain,
 };
 
 static void bdrv_qed_init(void)