@@ -849,4 +849,7 @@ int coroutine_fn bdrv_co_copy_range(BdrvChild *src, int64_t src_offset,
BdrvChild *dst, int64_t dst_offset,
int64_t bytes, BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
+
+void bdrv_cancel_in_flight(BlockDriverState *bs);
+
#endif
@@ -352,6 +352,15 @@ struct BlockDriver {
bool want_zero, int64_t offset, int64_t bytes, int64_t *pnum,
int64_t *map, BlockDriverState **file);
+ /*
+ * This informs the driver that we are no longer interested in the result
+ * of in-flight requests, so don't waste the time if possible.
+ *
+ * One example usage is to avoid waiting for an nbd target node reconnect
+ * timeout during job-cancel.
+ */
+ void (*bdrv_cancel_in_flight)(BlockDriverState *bs);
+
/*
* Invalidate any cached meta-data.
*/
@@ -3460,3 +3460,14 @@ out:
return ret;
}
+
+void bdrv_cancel_in_flight(BlockDriverState *bs)
+{
+ if (!bs || !bs->drv) {
+ return;
+ }
+
+ if (bs->drv->bdrv_cancel_in_flight) {
+ bs->drv->bdrv_cancel_in_flight(bs);
+ }
+}