1 files changed, 21 insertions, 0 deletions
diff --git a/block/io.c b/block/io.c
index e12f303df5..a2fba6738a 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1902,6 +1902,27 @@ void bdrv_aio_cancel_async(BlockAIOCB *acb)
 /**************************************************************/
 /* async block device emulation */
 
+typedef struct BlockRequest {
+    union {
+        /* Used during read, write, trim */
+        struct {
+            int64_t sector;
+            int nb_sectors;
+            int flags;
+            QEMUIOVector *qiov;
+        };
+        /* Used during ioctl */
+        struct {
+            int req;
+            void *buf;
+        };
+    };
+    BlockCompletionFunc *cb;
+    void *opaque;
+
+    int error;
+} BlockRequest;
+
 typedef struct BlockAIOCBCoroutine {
     BlockAIOCB common;
     BlockRequest req;